{"title":"Thread Gauges","description":"\u003cp\u003eThread gauges are the go\/no-go check that confirms whether a threaded feature — a tapped hole or a turned external thread — is within tolerance before it goes to assembly. The go gauge enters cleanly; the no-go gauge stops at the first turn. If both conditions are met, the thread passes. No measuring, no calculation, no ambiguity.\u003c\/p\u003e\n\n\u003cp\u003eWe stock a large range covering metric and imperial threads, including plug gauges for internal threads (6H tolerance) and ring gauges for external threads (6g tolerance). Common sizes run from M4 × 0.7 through M8 × 1.25 and well beyond, with right-hand and left-hand forms across the range. All gauges are manufactured to BS\/ISO standards for use in production inspection, incoming QC, and machine setup.\u003c\/p\u003e\n\n\u003cp\u003eWith thousands of gauges held in UK stock, you can spec a single gauge for a repair job or kit out an inspection station for a full production run. Orders before 4.30pm ship same day.\u003c\/p\u003e\n\n\u003ch3\u003ePlug gauges vs. ring gauges — which do you need?\u003c\/h3\u003e\n\u003cp\u003eUse a plug gauge to check a tapped hole — it tests the internal thread. Use a ring gauge to check a stud, bolt or turned diameter — it tests the external thread. For a complete go\/no-go check on a thread pair, you need both. If you're unsure which gauge matches your specification, each product page lists the thread form, tolerance class, and pitch for that gauge.\u003c\/p\u003e\n\n\u003ch2\u003ePlug gauges by thread series\u003c\/h2\u003e\n\u003cp\u003eA plug gauge is a fixed cylindrical gauge cut to the pitch and tolerance you're checking — 6H for a standard fit. The GO end has to wind fully into the tapped hole by hand; the NOGO end shouldn't enter more than a couple of turns. JBO manufactures the range we stock, ground to BS 919 \/ ISO 1502.\u003c\/p\u003e\n\u003cp\u003eBrowse plug gauges by thread series: \u003ca href=\"\/collections\/jbo-thread-plug-gauges-metric-coarse-go-no-go\"\u003emetric coarse\u003c\/a\u003e, \u003ca href=\"\/collections\/jbo-thread-plug-gauges-metric-fine-go-no-go\"\u003emetric fine\u003c\/a\u003e, \u003ca href=\"\/collections\/jbo-thread-plug-gauges-unified-go-no-go\"\u003eUNC\/UNF (Unified)\u003c\/a\u003e, \u003ca href=\"\/collections\/jbo-thread-plug-gauges-bsp-g-go-no-go\"\u003eBSP (G)\u003c\/a\u003e, \u003ca href=\"\/collections\/jbo-thread-plug-gauges-bsw-go-no-go\"\u003eBSW\u003c\/a\u003e, and \u003ca href=\"\/collections\/thread-gauges-npt\"\u003eNPT pipe threads\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eRing gauges by thread series\u003c\/h2\u003e\n\u003cp\u003eA ring gauge does the same job on the outside of a part — a stud, bolt, or turned diameter — at 6g tolerance. The GO ring should thread on by hand across its full length; the NOGO ring should stop within a turn or two. GO and NOGO rings are stocked separately in each series so you can order just the one you need.\u003c\/p\u003e\n\u003cp\u003eBrowse ring gauges by thread series: metric coarse \u003ca href=\"\/collections\/jbo-thread-ring-gauges-go-metric-coarse\"\u003eGO\u003c\/a\u003e \/ \u003ca href=\"\/collections\/jbo-thread-ring-gauges-nogo-metric-coarse\"\u003eNoGo\u003c\/a\u003e, metric fine \u003ca href=\"\/collections\/jbo-thread-ring-gauges-go-metric-fine\"\u003eGO\u003c\/a\u003e \/ \u003ca href=\"\/collections\/jbo-thread-ring-gauges-nogo-metric-fine\"\u003eNoGo\u003c\/a\u003e, Unified \u003ca href=\"\/collections\/jbo-thread-ring-gauges-go-unified\"\u003eGO\u003c\/a\u003e \/ \u003ca href=\"\/collections\/jbo-thread-ring-gauges-nogo-unified\"\u003eNoGo\u003c\/a\u003e, BSP \u003ca href=\"\/collections\/jbo-thread-ring-gauges-go-bsp-g\"\u003eGO\u003c\/a\u003e \/ \u003ca href=\"\/collections\/jbo-thread-ring-gauges-nogo-bsp-g\"\u003eNoGo\u003c\/a\u003e, and \u003ca href=\"\/collections\/thread-gauges-npt\"\u003eNPT\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"jbo-510383","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M42 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge (NoGo) is a precision inspection tool designed to verify metric coarse internal threads. Sized for M42 x 4.5 with a 6H tolerance and a right-hand thread, it helps technicians quickly confirm that threaded holes meet the required fit. Ideal for machine shops, quality labs, and maintenance teams, this NoGo gauge clearly indicates holes that exceed tolerance so you can address them efficiently.\u003c\/p\u003e \u003cp\u003eConstructed from hardened steel for lasting durability, the gauge resists wear and maintains accurate boundary checks even after repeated use in busy environments. Its knurled body provides a secure, comfortable grip, enabling fast, confident inspections without the need for extra tools.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFast, reliable Go\/NoGo verification\u003c\/b\u003e: Delivers decisive boundary checks to quickly separate compliant holes from out-of-spec ones, reducing inspection time and downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel durability\u003c\/b\u003e: Built to withstand daily use in demanding workplaces while preserving measurement accuracy over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric coarse sizing for reliability\u003c\/b\u003e: Engineered for M42 x 4.5 with 6H tolerance and a right-hand thread, ensuring consistent results across standard components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUsing the JBO Thread Plug Gauge (NoGo) helps you validate threaded holes with confidence, improving workflow and accuracy across production, assembly, and maintenance tasks. The combination of durable construction and precise sizing supports repeatable results, reduces rework, and helps your team meet stringent specifications with each inspection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712250958,"sku":"JBO-510383","price":99.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_3184a071-1b60-48b7-aa32-f59c4766989f.png?v=1739875289"},{"product_id":"jbo-510395","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M45 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) is a precision inspection tool designed to verify metric coarse threaded holes. It is sized for M45 x 4.5, right-hand threads, and uses the 6H tolerance class to ensure correct fit and reliable performance in quality-critical applications. This gauge is ideal for engineers, machinists, QA teams, and assembly personnel who need confident, fast checks during manufacturing and inspection processes.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAccurate NoGo verification for M45 x 4.5 metric coarse threads\u003c\/b\u003e: Quick, pass\/fail checks that align with the 6H tolerance, helping you confirm holes accept the correct plug size and reject out-of-spec work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction for long service life\u003c\/b\u003e: Built to withstand demanding shop environments, delivering durable, repeatable measurements over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic, user-friendly design for fast inspections\u003c\/b\u003e: Knurled grip and straightforward handling enable secure use and consistent results across multiple checks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing this gauge streamlines threaded-hole inspections, reduces rework, and supports consistent, reliable thread quality across parts and batches. Its combination of precise sizing and rugged construction helps you meet standards with confidence, improving workflow efficiency and overall production performance.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712283726,"sku":"JBO-510395","price":108.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_c9348562-ee18-481d-9482-6ce0f23dec98.png?v=1739875293"},{"product_id":"jbo-510408","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M48 x 5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) is a precision instrument designed to verify threaded holes to metric coarse, right‑hand specifications. It’s built for quality control and precision engineering, helping ensure that M48 x 5 threads meet the 6H tolerance and fit correctly in a wide range of components and assemblies.\n\u003c\/p\u003e \u003cp\u003e\nCrafted from hardened steel for durability in demanding shop environments, this NoGo gauge delivers reliable, repeatable inspections. Its user-friendly design—featuring a knurled handle and a clearly defined test end—lets technicians perform quick checks with confidence, reducing guesswork and rework.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eNoGo verification for reliable hole tolerance\u003c\/b\u003e: Quickly confirms threaded holes are within spec by preventing over-sized holes from passing QC, helping keep parts in-spec and reducing rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable, hardened steel construction\u003c\/b\u003e: Withstands daily use in busy workshops, delivering long service life and consistent, repeatable measurements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eExact M48 x 5 Right-Hand, Metric Coarse NoGo target\u003c\/b\u003e: Provides precise alignment with the intended size and tolerance, enabling fast, confident go\/no-go decisions during setup and inspection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing the JBO Thread Plug Gauge (NoGo) helps streamline your inspection workflow, shorten downtime, and enhance overall quality by delivering consistent, reliable results. The combination of robust construction and straightforward operation supports efficient validation of threaded components, ensuring every part that passes your QC meets the required standards.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712316494,"sku":"JBO-510408","price":116.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_be3ccfc8-184c-4eb3-aafa-4f65bb869d36.png?v=1739875296"},{"product_id":"jbo-510444","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M52 x 5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) in Metric Coarse, Right Hand, 6H, M52 x 5 is a precision inspection tool designed to verify threaded holes meet exact specifications. It helps engineers, machinists, quality teams, and maintenance personnel ensure internal threads engage correctly and assemble reliably across a wide range of projects.\n\u003c\/p\u003e\n\u003cp\u003e\nMade from hardened steel for long life and repeatable results, this NoGo gauge withstands demanding shop environments and frequent use, delivering consistent measurements over time. Its simple, intuitive design makes it a dependable part of any quality control program, ensuring threaded connections meet standards before assembly.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise NoGo checks for M52 x 5 coarse, right-hand threads\u003c\/b\u003e: quickly confirms holes stay within 6H tolerance, helping you detect out-of-spec threads at a glance and reduce rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: built to endure daily handling, wear, and cleaning, delivering long tool life and reliable performance in busy production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic, one-handed operation\u003c\/b\u003e: knurled texture and compact head enable fast, repeatable checks with minimal setup, speeding up QC workflows on the shop floor.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis gauge supports a smoother quality-control workflow by delivering clear, repeatable measurements. When reliable threading is essential for dependable assemblies, the JBO NoGo gauge provides confidence that parts will fit as intended, reducing downtime and returns while elevating overall product quality.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712382030,"sku":"JBO-510444","price":124.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_413f84d2-a12f-4e08-b4da-02940428086f.png?v=1739875300"},{"product_id":"jbo-510457","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M56 x 5.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) — Metric Coarse, Right Hand, 6H, M56 x 5.5 — is a precision inspection tool for verifying threaded holes. Built for engineers, buyers, tradespeople, and quality teams, it ensures the correct fit and reliable function of mating parts by confirming holes meet the specified size and tolerance.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eNoGo verification for metric coarse threads\u003c\/b\u003e: Quickly confirms holes meet the M56 x 5.5, 6H specifications, helping prevent out-of-tolerance parts from passing inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRugged, hardened steel construction\u003c\/b\u003e: Delivers long tool life and dependable performance in demanding workshop environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic, user-friendly design\u003c\/b\u003e: Easy to use with precise measurements, supporting consistent results across operators and shifts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsed as part of a disciplined quality control workflow, this gauge speeds up inspections and reduces rework by delivering clear pass\/fail indications for threaded holes. Its durable build and precise sizing give you confidence in every assembly, helping maintain consistent fit, reliability, and workflow efficiency across production runs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712414798,"sku":"JBO-510457","price":137.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_fa99550d-960a-43bb-ae68-ae19f50cc5b8.png?v=1739875303"},{"product_id":"jbo-510482","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M60 x 5.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) for metric coarse threads is a compact, hand-held inspection tool designed to verify threaded holes to exact size and tolerance. Specifically tuned for M60 x 5.5, right-hand threads with a 6H tolerance, this NoGo gauge helps ensure your components assemble correctly on the first try.\n\u003c\/p\u003e \u003cp\u003eMade from hardened steel, the gauge is built to endure demanding shop conditions. Its knurled, ergonomic handle provides a secure grip, enabling quick, repeated checks with minimal fatigue for reliable quality assurance in high-volume environments.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go verification for M60 x 5.5 right-hand threads\u003c\/b\u003e: Quickly confirm hole size and tolerance to prevent misfits and rework, supporting consistent assembly quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction for long tool life\u003c\/b\u003e: Resists wear and maintains measurement accuracy through hundreds of inspections in demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic knurled handle and compact design\u003c\/b\u003e: Easy to grip in tight spaces, enabling fast, repeatable checks with reduced hand fatigue.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis gauge helps streamline quality control, shorten inspection cycles, and ensure threaded connections conform to 6H tolerance and the intended size. By delivering reliable, repeatable measurements, it supports better parts interchangeability, fewer defects, and smoother downstream assembly across manufacturing, maintenance, and engineering workflows.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712447566,"sku":"JBO-510482","price":155.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_8db27fdd-a7f2-46e7-9abd-6d00904362cd.png?v=1739875307"},{"product_id":"jbo-510492","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M64 x 6","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) is a precise inspection tool designed to verify metric coarse threads in threaded holes. Sized M64 x 6 with a right-hand orientation, it provides dependable go\/no-go checks that help ensure every part meets the required fit and function. Ideal for quality teams, engineers, machinists, and maintenance crews, this gauge streamlines inspection tasks and supports consistent threading standards across projects.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise M64 x 6 metric coarse NoGo gauge\u003c\/b\u003e: Enables quick, reliable pass\/fail checks against the 6H class to confirm threaded holes are within spec, reducing guesswork and rework in production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction\u003c\/b\u003e: Built to withstand demanding shop environments, delivering long service life and stable measurements even after repeated use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic knurled grip for secure handling\u003c\/b\u003e: Provides a comfortable, slip-resistant hold that improves control and accuracy when performing inspections in tight or awkward spaces.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith its robust design and straightforward operation, the JBO Thread Plug Gauge (NoGo) helps you accelerate quality control workflows, prevent mismatched assemblies, and achieve dependable, repeatable results across every inspection cycle.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712480334,"sku":"JBO-510492","price":171.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_814c5264-f6de-423a-bf5b-208400860c23.png?v=1739875311"},{"product_id":"jbo-513505","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M68 x 6","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge (NoGo) for Metric Coarse threads — Right Hand, M68 x 6, 6H — is a precise internal-thread inspection tool designed for engineers, machinists, buyers, hobbyists, and quality teams. Made from hardened steel for durability, it quickly verifies threaded holes and helps ensure mating parts will fit correctly in demanding production environments.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eNoGo verification for metric coarse threads (M68 x 6, 6H)\u003c\/b\u003e: Provides immediate pass\/fail checks, enabling objective, fast decisions and reducing guesswork in assembly and quality control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction for durability\u003c\/b\u003e: Resists wear and maintains accuracy through many inspections, delivering long service life in busy workshop settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUser-friendly, precise measurements for right-hand threads\u003c\/b\u003e: Designed for easy use with reliable readings, speeding up QC checks and minimizing setup time for metric coarse thread inspections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eBy delivering quick and reliable thread verification, this gauge helps you prevent misfits, shorten inspection cycles, and reduce rework. Its robust construction and precision measurements support consistent results across production runs, giving you confidence in threaded connections and smoother downstream assembly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712513102,"sku":"JBO-513505","price":180.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_e8c280e1-7eb5-4008-b550-ea466707309f.png?v=1739875314"},{"product_id":"jbo-514600","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Left Hand - 6H - M42 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge (NoGo) is a precision inspection tool designed to verify internal metric coarse threads. It is specifically sized for M42 x 4.5 left-hand threads and 6H tolerance, making it an ideal choice for machine shops, quality teams, and precision engineers who need reliable hole checks. Use it to confirm that threaded holes will accept fasteners and perform as intended in assemblies across automotive, industrial, and equipment applications.\u003c\/p\u003e \u003cp\u003eCrafted from durable hardened steel, this gauge is built to withstand the demands of busy workshops. The knurled body provides a secure grip for precise alignment, while its compact form fits easily into your QC toolkit. With clear, repeatable measurements, it delivers long-lasting performance you can trust for routine go\/no-go checks.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRugged hardened steel construction\u003c\/b\u003e: Built to withstand daily use in demanding environments, delivering long-lasting accuracy and reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNoGo sizing for M42 x 4.5 left-hand threads\u003c\/b\u003e: Provides clear, pass\/fail checks to ensure threads meet their tolerance and will assemble correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUser-friendly knurled design for fast checks\u003c\/b\u003e: Easy to grip and align, enabling quick, repeatable inspections with minimal setup, reducing downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn daily use, the JBO plug gauge helps streamline quality control and assembly workflows by delivering fast, repeatable thread inspections. It reduces rework by catching out-of-tolerance holes early and supports consistent, reliable threaded connections across parts and equipment. With durable construction and precise sizing, you can trust it as a standard instrument in your manufacturing or workshop toolkit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712545870,"sku":"JBO-514600","price":126.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_c1c2300f-d064-44fb-a323-db520b650bca.png?v=1739875274"},{"product_id":"jbo-516961","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Left Hand - 6H - M45 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) – Metric Coarse, Left Hand, 6H, M45 x 4.5 – is a precision inspection tool designed to quickly verify the size of internal threaded holes. Built for quality control, machining, assembly, and maintenance teams, it helps ensure threaded connections will meet spec and function reliably in real-world applications.\n\u003c\/p\u003e \u003cp\u003e\nCrafted from hardened steel for durability and long life, this NoGo gauge is built to withstand daily shop conditions. The left-hand thread configuration and exact M45 x 4.5 dimensions provide a dependable reference for verifying hole size, so you can trust your assemblies from first run to final production.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eExact NoGo for M45 x 4.5 metric coarse threads\u003c\/b\u003e: quickly confirms holes do not exceed maximum size, helping prevent mismatches and costly rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeft-Hand thread compatibility\u003c\/b\u003e: specifically designed to inspect left-handed threaded holes, reducing read errors and ensuring correct fits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRugged, ergonomic construction\u003c\/b\u003e: hardened steel body with a knurled grip delivers durable, repeatable readings and comfortable handling—even with gloves.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis gauge streamlines quality checks by delivering fast, repeatable measurements that improve workflow and reduce downtime. Its robust design supports consistent performance across inspections, giving you confidence in every threaded connection and helping you meet tight tolerances with less guesswork.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712578638,"sku":"JBO-516961","price":134.87,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_e130b1b4-e644-41db-b89e-1cc809d5f66e.png?v=1739875278"},{"product_id":"jbo-510409","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Left Hand - 6H - M48 x 5","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge (NoGo) is a precision inspection tool designed for quality control teams, machinists, engineers, and inspectors who need fast, reliable checks of left-hand metric coarse threaded holes. This M48 x 5 NoGo gauge verifies that the hole size does not exceed the defined tolerance, helping ensure correct fit and dependable performance in assemblies.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Built to withstand daily workshop use, resist wear, and maintain calibration for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeft-hand metric coarse M48 x 5 NoGo design\u003c\/b\u003e: Specifically tailored for left-hand threaded holes, delivering consistent measurements and reducing ambiguity in inspection results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic knurled body for fast checks\u003c\/b\u003e: The textured grip and compact profile enable quick insertion, confident handling, and repeatable NoGo checks on busy production lines.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn practice, this gauge accelerates quality control by providing clear, repeatable acceptance criteria for left-handed threads. Its robust material and precise dimensions reduce downtime, lower scrap rates, and help you achieve consistent thread engagement across assemblies, ensuring parts fit right the first time and production stays on schedule.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712611406,"sku":"JBO-510409","price":148.02,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_082dcb92-b311-43c9-adbf-ddf78b539640.png?v=1739875281"},{"product_id":"jbo-517178","title":"JBO Thread Plug Gauge (NoGo) - Metric Coarse - Left Hand - 6H - M52 x 5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (NoGo) is a precision tool designed to verify metric coarse threaded holes quickly and reliably. Ideal for quality control, manufacturing, and assembly environments, this gauge helps ensure threaded connections fit as intended and meet specifications.\n\u003c\/p\u003e \u003cp\u003e\nManufactured from hardened steel and finished for longevity, the gauge is built to withstand demanding workshop conditions. It is specifically configured for left-hand thread applications with M52 x 5 size and 6H tolerance, providing confident checks during machining, inspection, and assembly processes.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go verification for quick, reliable checks\u003c\/b\u003e: Enables fast pass\/fail assessments of hole threads, helping you confirm correct size and tolerance and prevent misfits in final assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRugged, knurled construction\u003c\/b\u003e: Durable hardened steel with a textured grip resists wear and provides secure handling, even in busy, glove-filled environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeft-hand metric coarse design (M52 x 5, 6H)\u003c\/b\u003e: Precisely matched to this thread configuration, ensuring accurate, consistent checks for left-hand threaded holes and reducing guesswork during inspections.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nIncorporating the JBO Thread Plug Gauge into your quality routine delivers faster, more dependable thread inspections, minimizes rework, and helps ensure every threaded connection meets specifications. Its sturdy build and targeted design make it a trusted tool for technicians, engineers, and shop floor personnel aiming for consistent, reliable results.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712644174,"sku":"JBO-517178","price":159.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GONOGO_44c84c73-a27e-4faa-8148-6f871840e566.png?v=1739875285"},{"product_id":"jbo-511110","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M42 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) is a precision inspection tool designed to verify metric coarse internal threads. Built for machinists, quality control professionals, engineers, and maintenance teams, it provides a simple, reliable pass\/fail check to ensure holes meet the M42 x 4.5 standard with a 6H tolerance. Designed for use in busy workshops, it helps you confirm thread quality quickly and with confidence.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMetric coarse thread GO gauge for M42 x 4.5\u003c\/b\u003e: Enables fast, decisive verification of threaded holes, supporting accurate assembly and reducing rework by confirming compliance with the standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel body with knurled grip\u003c\/b\u003e: Durable, wear‑resistant construction that stands up to daily use in demanding environments and provides a secure, comfortable grip even with gloves on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight‑hand design with 6H tolerance\u003c\/b\u003e: Ensures consistent, repeatable measurements across parts and setups, aligning with common metric coarse thread standards for dependable quality control.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing this GO gauge helps you streamline quality checks, speed up production workflows, and ensure threaded connections fit as intended. Its robust construction minimizes downtime and replacement costs while delivering reliable, repeatable results that you can trust in both manufacturing and maintenance contexts.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712676942,"sku":"JBO-511110","price":111.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_1bcc5b42-3898-481e-a153-7e7811cfcc21.png?v=1739873981"},{"product_id":"jbo-511122","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M45 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) – Metric Coarse, Right Hand, 6H, M45 x 4.5, is a purpose-built tool for quickly verifying threaded holes meet the required metric coarse standard. Whether you’re in quality control, manufacturing, or precision engineering, this GO gauge helps you confirm proper fit with confidence.\n\u003c\/p\u003e \u003cp\u003e\nBuilt from hardened steel for durability, it resists wear in busy workshop environments and maintains accurate measurements over time. Its straightforward design and precise sizing support reliable inspections, reducing guesswork and ensuring seamless assembly of metric coarse threaded connections.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo gauge for metric coarse threads (M45 x 4.5, right-hand, 6H)\u003c\/b\u003e: Provides quick, pass\/fail verification to ensure holes meet the specified standard, accelerating quality checks and assembly readiness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Delivers long service life in demanding environments, resisting wear and preserving accuracy across many inspections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUser-friendly inspection design\u003c\/b\u003e: Supports straightforward, repeatable measurements with minimal setup, helping teams produce consistent results in quality control and precision engineering.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis gauge helps you speed up inspections, minimize guesswork in thread acceptance, and ensure consistent, reliable thread engagement across components. Its hardened steel build stands up to daily use, while the metric coarse M45 x 4.5 size and 6H class deliver dependable results in quality control and precision assembly.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712709710,"sku":"JBO-511122","price":119.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_b60c45aa-05fe-479e-9023-edcd68eccf76.png?v=1739873984"},{"product_id":"jbo-511136","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M48 x 5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M48 x 5 is a precision inspection tool used to verify metric coarse threaded holes. Designed for engineers, machinists, quality inspectors, and assembly specialists, it provides a quick go\/no-go check to confirm hole threads meet the M48 x 5 coarse specification.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise Go Gauge for Metric Coarse M48 x 5\u003c\/b\u003e: Enables fast, reliable verification of internal threads with a single pass, giving an immediate pass\/fail read that keeps production moving and reduces rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Hardened Steel Construction\u003c\/b\u003e: Built to withstand daily use in busy workshops, resisting wear and maintaining accuracy over many inspection cycles for long-lasting reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic, User‑Friendly Design\u003c\/b\u003e: Knurled body provides secure grip and effortless alignment, allowing quick testing on the shop floor without complicated setup or tools.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing the JBO Thread Plug Gauge for M48 x 5 coarse threads simplifies quality control, speeds up assembly checks, and helps prevent misthreads in critical components. Its consistent, reliable performance supports predictable assembly and better part interchangeability, making it a dependable addition to any QC station, workshop, or manufacturing line.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712742478,"sku":"JBO-511136","price":128.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_e5ee869d-75e7-43cc-8339-35d1be830b6d.png?v=1739873988"},{"product_id":"jbo-511174","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M52 x 5","description":"\u003cdiv\u003e\n\u003cp\u003e\nJBO Thread Plug Gauge (GO) is a precision tool for quickly verifying metric coarse threaded holes. Sized for M52 x 5 with a right-hand thread and 6H tolerance, this GO gauge is ideal for inspectors, machinists, and quality teams aiming to confirm parts meet standard metric coarse thread specifications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFast go\/no-go verification\u003c\/b\u003e: Quickly confirm whether a threaded hole meets the M52 x 5 metric coarse standard, helping you speed up inspections and keep production moving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Built to resist wear in busy workshop environments, delivering long-lasting performance and consistent results over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpec-compliant geometry (Right-Hand, 6H)\u003c\/b\u003e: Ensures reliable, repeatable checks that align with standard threading tolerances for consistent results across parts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing this GO gauge helps streamline quality control by delivering fast, reliable go\/no-go checks, reducing inspection time and rework. It supports consistent threaded-hole validation across batches, improving overall assembly reliability and uptime. The robust hardened-steel design minimizes wear and replacement costs, while the exact M52 x 5, right-hand, 6H specification gives you confidence that parts will thread together as intended.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712775246,"sku":"JBO-511174","price":137.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_b666e146-1159-4702-982e-648b5d5fd8eb.png?v=1739873992"},{"product_id":"jbo-511187","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M56 x 5.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M56 x 5.5 is a precision go gauge designed to verify metric coarse threaded holes quickly and reliably. It's ideal for quality control teams, assembly lines, and engineering shops that depend on consistent thread fit.\n\u003c\/p\u003e\n\u003cp\u003e\nCrafted from hardened steel for lasting durability, this GO gauge is built to withstand the rigors of busy workshops. Its right-hand configuration, paired with the 6H tolerance for M56 x 5.5 coarse threads, provides straightforward, repeatable checks that confirm holes meet standard thread specifications without guesswork.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFast, go\/no-go verification\u003c\/b\u003e: Quickly confirm holes meet the M56 x 5.5, 6H coarse-thread standard to keep production moving and reduce guesswork during inspections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Designed to endure daily use in demanding environments, resisting wear to maintain accurate measurements over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSpecifically calibrated for metric coarse right-hand threads\u003c\/b\u003e: Ensures reliable, repeatable checks for common coarse-thread applications, helping maintain consistent assembly quality.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith the JBO GO Gauge in your toolkit, inspections become faster and more dependable. It supports tight tolerances on threaded holes, reduces rework, and helps you achieve consistent results across batches, delivering confidence in every assembly that relies on M56 x 5.5 coarse threads.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712808014,"sku":"JBO-511187","price":153.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_e4db5925-e1a8-44d5-bc63-47a41517b526.png?v=1739873995"},{"product_id":"jbo-511211","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M60 x 5.5","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge (GO) – Metric Coarse, Right Hand, 6H, M60 x 5.5 is a precision go\/no-go tool designed to quickly verify metric coarse threaded holes meet the standard. Sized for M60 x 5.5 with right-hand threads and 6H tolerance, it’s ideal for production lines, maintenance shops, and QA teams that need reliable, repeatable thread inspection.\u003c\/p\u003e \u003cp\u003eConstructed from hardened steel, this plug gauge delivers long wear resistance and stable accuracy in demanding environments. Its robust design stands up to frequent use, ensuring consistent measurements across shifts and runs.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMetric Coarse GO gauge for M60 x 5.5\u003c\/b\u003e: Enables fast pass\/fail checks of threaded holes to ensure they accept the mating bolt and meet the metric coarse standard, supporting consistent assembly across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction\u003c\/b\u003e: Delivers durable wear resistance for long service life, maintaining accuracy even with heavy daily use in busy shops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight-hand orientation with 6H tolerance\u003c\/b\u003e: Specifically configured for right-hand threads and standard 6H tolerance, delivering reliable, repeatable measurements for quality control workflows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the JBO GO gauge, you gain a dependable, time-saving inspection step that reduces rework and fit issues. Quick, clear go\/no-go results improve throughput on the production floor, while the rugged construction and precise sizing ensure consistent results from one batch to the next. This gauge is a practical, trustworthy addition to any quality control toolkit for metric coarse thread verification.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712840782,"sku":"JBO-511211","price":171.05,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_13ba23f2-87cc-4fda-a546-6067fbafca86.png?v=1739873999"},{"product_id":"jbo-511218","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M64 x 6","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) — Metric Coarse, Right Hand, 6H, M64 x 6 is a GO gauge designed to verify internal metric coarse threads in holes. This tool is an essential part of quality control, precision engineering, and assembly workflows across manufacturing, automotive, and industrial environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Built to withstand daily use in busy shops, this GO gauge resists wear and maintains accuracy over time for reliable hole inspection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise GO gauge for M64 x 6 metric coarse threads\u003c\/b\u003e: Quickly verify internal threads against the specified size and 6H class to ensure holes meet required standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUser-friendly design for fast, repeatable checks\u003c\/b\u003e: Simple handling and clearly defined measurements support quick, repeatable inspections with minimal setup in quality control workflows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nBy incorporating the JBO Thread Plug Gauge (GO) into your inspection routine, you gain consistent, repeatable results that reduce guesswork and downstream rework. Its rugged construction and precise measurements help ensure every M64 x 6 hole threads smoothly into assemblies, supporting efficient production, reliable fits, and overall quality across your manufacturing processes.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712873550,"sku":"JBO-511218","price":187.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_6bb3836c-d999-4fd8-bddb-bd9b89267c2e.png?v=1739874002"},{"product_id":"jbo-513504","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Right Hand - 6H - M68 x 6","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) for Metric Coarse Threads in Right-Hand M68 x 6 is a precise go\/no-go inspection tool designed to verify that threaded holes meet exact coarse-thread specifications. Ideal for engineers, machinists, quality control professionals, and assembly teams, it provides a quick pass\/fail check to confirm holes will accept the mating part with the correct fit.\n\u003c\/p\u003e \u003cp\u003e\nBuilt for reliability in demanding workshops, this GO gauge is crafted from hardened steel to resist wear and maintain accurate size through repeated use. The Right-Hand orientation and 6H tolerance alignment ensure compatibility with standard metric coarse threaded components and common inspection workflows.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDirect GO verification for M68 x 6 coarse threads\u003c\/b\u003e: Quickly confirm that a threaded hole accepts the specified coarse thread, enabling fast, confident pass\/fail decisions during assembly and quality checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction for long life\u003c\/b\u003e: Built to withstand daily shop use, resisting wear to preserve dimensional accuracy over many inspections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesigned for fast, repeatable inspections\u003c\/b\u003e: Smooth insertion and consistent readings support high-volume QC and reduce downtime in production lines.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith the JBO GO gauge, you gain reliable, repeatable checks that streamline quality control, reduce scrap, and accelerate assembly. Its durable construction and straightforward use help you maintain tight tolerances across batches, improve workflow efficiency, and ensure every part meets the required metric coarse thread standard before it reaches final assembly.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712906318,"sku":"JBO-513504","price":200.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_20da193b-2192-4982-948d-a1e3af49e2f0.png?v=1739874006"},{"product_id":"jbo-514598","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Left Hand - 6H - M42 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) – Metric Coarse, Left Hand, 6H, M42 x 4.5 is a precision Go gauge designed to quickly verify threaded holes meet metric coarse standards. Tailored for left-hand thread applications, it ensures holes will accept the intended components and conform to tight dimensional requirements across manufacturing, assembly, and maintenance workflows.\n\u003c\/p\u003e \u003cp\u003e\nIdeal for quality control teams, machinists, engineers, and inspectors, this GO gauge delivers fast, repeatable pass\/fail checks that reduce guesswork and rework. Crafted from hardened steel, it resists wear in demanding environments and maintains accuracy through frequent use.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo Gauge for Metric Coarse Threads\u003c\/b\u003e: Provides fast, one-pass validation of hole size to metric coarse standards, enabling quick decisions and consistent assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Hardened Steel Construction\u003c\/b\u003e: Built for daily shop use, delivering long tool life and reliable performance even in busy production environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeft-Hand Thread Form Compatibility (M42 x 4.5, 6H)\u003c\/b\u003e: Precisely matched to left-hand coarse thread specifications, ensuring correct testing for the intended components and workflow.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing the JBO GO gauge helps streamline inspection, accelerate quality checks, and improve first-pass acceptance. Its precise, repeatable measurements support reliable thread mating, reduce downtime from misfits, and provide confidence for audits and handovers across engineering and manufacturing teams.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712939086,"sku":"JBO-514598","price":141.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_14d135c3-1737-42a4-91c7-a9a1ad28a963.png?v=1739873967"},{"product_id":"jbo-513679","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Left Hand - 6H - M45 x 4.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) – Metric Coarse is a precision inspection tool designed to verify metric coarse threads in holes and threaded components. It’s ideal for machinists, quality teams, and assembly professionals who need fast, reliable go-checks for M45 x 4.5 coarse threads, including left-hand configurations. Built from hardened steel, this gauge delivers durable, long-lasting performance in busy workshop environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLeft-hand GO gauge for quick orientation\u003c\/b\u003e: Specifically designed for left-hand thread applications, enabling fast, accurate checks and reducing read errors on the production line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise M45 x 4.5 coarse thread with 6H tolerance\u003c\/b\u003e: Calibrated to the exact external thread size and tolerance class, delivering consistent pass\/fail results that support compliant quality control and reliable assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel for enduring accuracy\u003c\/b\u003e: Crafted from hardened steel to resist wear, maintain measurement stability over time, and withstand demanding use in tough environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nTogether, these features help you speed up inspections, cut rework, and ensure every threaded connection meets standard specifications. The durable, easy-to-use GO gauge supports repeatable results across high-volume runs, giving you confidence that components thread in smoothly and maintain their performance over the product lifecycle.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273712971854,"sku":"JBO-513679","price":151.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_932bfffd-ed28-4fbb-a9ef-c8cf14c5d3bd.png?v=1739873970"},{"product_id":"jbo-511137","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Left Hand - 6H - M48 x 5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge (GO) - Metric Coarse - Left Hand - 6H - M48 x 5 is a precision inspection tool designed to verify the size and condition of metric coarse threaded holes. It is ideal for engineers, machinists, quality control professionals, and workshop technicians who need a reliable GO gauge to ensure components meet the required thread standards.\n\u003c\/p\u003e \u003cp\u003e\nBuilt to endure demanding shop environments, this gauge features hardened steel construction for long-lasting wear resistance. Its precise design supports fast, repeatable measurements, helping teams accelerate inspections, reduce rework, and maintain consistent fitment across production runs.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAccurate metric coarse GO gauge\u003c\/b\u003e: Delivers precise checks for M48 x 5 coarse threads, enabling quick confirmation of hole size against standards and reducing guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Withstands daily use in busy workshops while maintaining measurement accuracy over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeft Hand, 6H compatibility\u003c\/b\u003e: Specifically designed to suit left-hand metric coarse threads and the 6H tolerance class for reliable engagement and results.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nTogether, these features help streamline quality control and precision assembly, delivering consistent results, faster inspections, and greater confidence that threaded connections will perform as intended in the final product.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713004622,"sku":"JBO-511137","price":162.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_dc18ebeb-de6b-43c2-901f-2a1501ae8a12.png?v=1739873974"},{"product_id":"jbo-514599","title":"JBO Thread Plug Gauge (GO) - Metric Coarse - Left Hand - 6H - M52 x 5","description":"\u003cdiv\u003e\n\u003cp\u003e\nJBO Thread Plug Gauge (GO) - Metric Coarse - Left Hand - 6H - M52 x 5 is a precision go gauge used to verify the accuracy of metric coarse threaded holes. Designed for machinists, quality inspectors, and assembly teams, it confirms that holes conform to the M52 x 5 coarse-thread standard, allowing fast, reliable checks during fabrication, assembly, or maintenance.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePrecise GO gauge for metric coarse threads\u003c\/b\u003e: Quickly verify that threaded holes meet the M52 x 5 coarse-thread standard, enabling fast pass\/fail decisions without guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel for long wear life\u003c\/b\u003e: Built to withstand daily use in busy workshops, resisting nicks and wear to maintain accuracy over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLeft-hand configuration with 6H tolerance\u003c\/b\u003e: Specifically designed to match left-hand coarse threads within the 6H hole tolerance, ensuring consistent measurements for specialized components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith the JBO GO gauge, you can streamline quality control and assembly workflows. Its reliable, repeatable checks reduce rework, shorten inspection times, and help you maintain tight dimensional control across production runs. Made from durable hardened steel and engineered for straightforward use, this gauge supports confident decisions in both high-volume manufacturing and precision engineering environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713037390,"sku":"JBO-514599","price":173.24,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/JBO_PLUG_GO_0480dd96-fd44-41f9-833c-b71176abfde8.png?v=1739873977"},{"product_id":"jbo-511618","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 5H - M1 x 0.25","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision tool for metric coarse threads, designed to help engineers, machinists, inspectors, and technicians quickly verify threaded holes for proper fit and function. Its go\/no-go design lets you confirm whether a hole is within tolerance in seconds, keeping assemblies moving smoothly.\n\u003c\/p\u003e \u003cp\u003e\nThis right-hand gauge covers M1 x 0.25 coarse threads with a 5H tolerance and is crafted from hardened steel to withstand daily use in busy workshops, providing reliable performance and long life.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Verification for Quick, Confident Checks\u003c\/b\u003e: The dual ends allow immediate assessment of both minimum and maximum thread limits, reducing inspection time and rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened Steel Construction for Durability\u003c\/b\u003e: Built to endure repeated use in demanding environments while maintaining accurate, repeatable measurements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight-Hand M1 x 0.25 Coarse Thread (5H)\u003c\/b\u003e: Optimized for common metric coarse threads, delivering consistent GO\/NO-GO results and compatibility across standard applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis plug gauge streamlines quality control by providing fast, reliable checks that help ensure components thread correctly the first time. By enabling precise GO\/NO-GO verification, it reduces downtime, minimizes guesswork, and supports consistent production yields across assemblies that use metric coarse threads.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713070158,"sku":"JBO-511618","price":164.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_d80fb04c-33bf-4266-bf7d-bf592236d15f.png?v=1744716082"},{"product_id":"jbo-511621","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 5H - M1.1 x 0.25","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision Go\/No-Go tool crafted for metric coarse threads. It’s the reliable choice for inspectors, machinists, engineers, and assembly technicians who need fast, accurate checks of threaded holes to ensure proper fit and function. Designed for right-hand applications, this gauge verifies holes sized M1.1 x 0.25 with a 5H tolerance, helping you prevent mismatches before they hit production or assembly.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go ends for fast, decisive checks\u003c\/b\u003e: Quickly confirm whether a hole accepts the plug gauge or stops at the no-go limit, delivering clear pass\/fail results in seconds and reducing inspection time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel with a knurled grip\u003c\/b\u003e: Built to withstand daily shop use, resisting wear while providing a secure, comfortable grip for repeatable, accurate insertions and removals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight-hand, metric coarse size (M1.1 x 0.25) with 5H tolerance\u003c\/b\u003e: Precisely matched to common coarse-thread holes, ensuring reliable checks and compatibility with standard components and manuals.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing this gauge supports a smoother workflow: validate thread holes before sub-assembly, catch sizing issues early, and maintain consistent results across batches. Its sturdy construction and straightforward Go\/No-Go design give you confidence in every measurement, helping you reduce downtime and deliver precise, reliable assemblies every time.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713102926,"sku":"JBO-511621","price":187.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_a3754fc0-4b1b-47dc-a673-c27951df20c3.png?v=1750241699"},{"product_id":"jbo-511623","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 5H - M1.2 x 0.25","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. Ideal for machinists, inspectors, and assembly teams, it quickly verifies threaded holes for proper fit and function using a simple go\/no-go test. Sized for M1.2 x 0.25 coarse threads with a right-hand orientation, this gauge helps ensure components assemble correctly the first time.\n\u003c\/p\u003e \u003cp\u003e\nCrafted from hardened steel, it stands up to daily wear in busy workshops and maintains accurate checks over many cycles. The sturdy construction and reliable geometry give you long-lasting performance you can trust in quality control and production environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go inspection for fast, reliable checks\u003c\/b\u003e: Quick pass\/fail indication for threaded holes, reducing inspection time and preventing assembly errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel for durable, long-lasting use\u003c\/b\u003e: Resists wear, maintains accuracy, and stands up to daily handling in workshop environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecisely sized for M1.2 x 0.25 coarse threads (5H, right-hand)\u003c\/b\u003e: Ensures consistent fit with standard components and reliable measurements across batches.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsed in daily manufacturing and maintenance, this gauge helps you validate hole sizes with confidence, speeding up setup and inspection. Its go\/no-go action gives you an unambiguous pass or fail, so you can move on to the next part without second-guessing. The combination of metric coarse threading compatibility, right-hand orientation, and 5H tolerance ensures consistent results across parts, reducing rework and improving overall assembly quality.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713135694,"sku":"JBO-511623","price":137.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_fb8a1e9f-1cc5-4167-be03-b0bbdf1ab617.png?v=1739870950"},{"product_id":"jbo-511629","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 5H - M1.4 x 0.3","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision Go\/No-Go tool designed specifically for metric coarse threads. with right-hand orientation and a 5H specification, this gauge helps machinists, quality inspectors, and assembly teams quickly verify threaded holes meet standard coarse-thread tolerances for M1.4 x 0.3. Built for reliable use, it’s ideal for shops, classrooms, and fieldwork where consistent threading checks are essential.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Design for Fast, Reliable Checks\u003c\/b\u003e: Quickly verify hole acceptance—use the go end for a correct fit and the no-go end to catch out-of-tolerance threads, reducing inspection time and guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Hardened Steel Construction\u003c\/b\u003e: Engineered to withstand rigorous use, providing stable, long-lasting measurements in busy workshop environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight Hand 5H Class for Metric Coarse Threads\u003c\/b\u003e: Aligns with standard coarse-thread specifications for M1.4 x 0.3, delivering consistent, repeatable results across jobs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis plug gauge helps streamline quality checks, ensuring threaded holes accept components only when within the specified tolerance. Its robust construction, combined with the go\/no-go logic, supports faster setup, fewer reworks, and more consistent performance across assemblies—boosting productivity and confidence in your manufacturing or machining workflow.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713168462,"sku":"JBO-511629","price":110.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_fce61681-c1e4-4557-a484-0852b5415093.png?v=1739870954"},{"product_id":"jbo-511636","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M1.6 x 0.35","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. It's ideal for engineers, machinists, buyers, tradespeople, and hobbyists who need reliable, standardized checks of internal threads to ensure proper fit and function. This Go\/No-Go gauge verifies M1.6 x 0.35 holes to the 6H tolerance, delivering a quick, definitive pass or fail for each part.\n\u003c\/p\u003e \u003cp\u003e\nConstructed from hardened steel, the gauge is built to endure heavy use in busy workshops, maintaining accuracy across multiple inspections.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Validation for Fast, Confident Inspections\u003c\/b\u003e: Quickly determine whether a hole meets the M1.6 x 0.35 thread with 6H tolerance, helping you approve correct parts and flag out-of-tolerance holes in moments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened Steel Construction for Durability\u003c\/b\u003e: Designed to resist wear and maintain precision through thousands of inspections in demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight-Hand Metric Coarse Thread Alignment\u003c\/b\u003e: Specifically tuned for right-hand coarse threads (M1.6 x 0.35), ensuring consistent, reliable checks that match production specifications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsed in quality control, assembly, and incoming inspection, the JBO Thread Plug Gauge streamlines checks, reduces rework, and supports consistent thread fits across batches. Its straightforward go\/no-go design and durable construction help your team move faster with greater confidence, delivering dependable results from the first part to the last.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713201230,"sku":"JBO-511636","price":102.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_642b546a-2cd1-44c1-be5c-1270d11f2913.png?v=1739871060"},{"product_id":"jbo-511642","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M1.7 x 0.35","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool tailored for metric coarse threads. Designed for machinists, quality control teams, and maintenance professionals, its Go\/No-Go design provides quick, reliable verification of threaded holes to ensure proper fit and function. The compact, hand-friendly gauge is ideal for fast checks in busy workshops, job sites, or a production line.\n\u003c\/p\u003e\n\u003cp\u003e\nBuilt for daily use, the gauge features a knurled, easy-to-grip body with color-coded ends that clearly differentiate the Go and No-Go sides for fast identification. Crafted from hardened steel, it resists wear and maintains accurate sizing even after repeated inspections, helping you sustain consistent results over time.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go quick checks\u003c\/b\u003e: The paired GO and NO-GO ends deliver immediate pass\/fail feedback, allowing you to approve correct holes or stop at the first sign of a mismatch, saving inspection time and reducing guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Withstands daily shop use and resists wear, maintaining precise tolerances for long service life and dependable performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric coarse-thread calibration (M1.7 x 0.35, Right-Hand, 6H)\u003c\/b\u003e: Specifically tuned for common metric coarse threads, ensuring your checks reflect real-world assemblies and support consistent quality control.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis gauge helps you streamline quality assurance, shorten production cycles, and improve overall assembly reliability. By delivering clear, repeatable results, it supports standardized inspections across teams and projects—from rapid prototyping to full-scale manufacturing—so you can trust your threaded holes to perform as intended every time.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273713823822,"sku":"JBO-511642","price":116.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_df687421-c687-469d-8cc0-9f4e33bc0924.png?v=1739871064"},{"product_id":"jbo-511644","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M1.8 x 0.35","description":"\u003cdiv\u003e\n\u003cp\u003e\nJBO Thread Plug Gauge is a go\/no-go inspection tool designed for metric coarse threads. It’s ideal for machinists, quality inspectors, and assembly specialists who need quick, reliable verification of threaded holes, specifically for M1.8 x 0.35 coarse threads. Equipped with a right-hand design and 6H tolerance, it provides a clear pass\/fail reference to ensure proper fit and reliable performance in tight workspaces.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go accuracy for metric coarse threads\u003c\/b\u003e: Quickly determine if a hole is within tolerance, reducing guesswork and rework by providing a clear pass\/fail result for M1.8 x 0.35 threads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction for durability\u003c\/b\u003e: Withstands daily shop wear, maintains precision, and offers long service life in challenging environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight-hand, 6H tolerance for standard compatibility\u003c\/b\u003e: Specifically matched to M1.8 x 0.35 coarse threads, ensuring reliable checks and compatibility with standard components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing the JBO Thread Plug Gauge helps you speed up threaded-hole checks, cut down rework, and improve consistency across parts and assemblies. The rugged hardened-steel design and precise go\/no-go criteria give you confidence in every measurement, enabling tighter quality control and more reliable performance in production or repair environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715363918,"sku":"JBO-511644","price":94.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_a32f3ca0-656f-4d5f-abea-c3d97eda8bf5.png?v=1739871067"},{"product_id":"jbo-511859","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M2 x 0.4","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads, specifically M2 x 0.4. Its compact, right‑hand gauge is ideal for engineers, machinists, quality control inspectors, and assembly technicians who need fast, reliable checks to verify threaded holes and ensure proper fitment in small components. The knurled grip and robust construction make it comfortable to use in busy work environments, promoting consistent results with every test.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go design for quick checks\u003c\/b\u003e: instantly determine if a threaded hole meets the required M2 x 0.4 coarse thread specification, speeding up quality control and reducing guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: built to withstand daily workshop use, resisting wear and maintaining accuracy over long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight-hand orientation with 6H tolerance\u003c\/b\u003e: precisely matched to standard 6H coarse-thread gauges, delivering reliable, repeatable results for consistent part mating.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWhen you choose this gauge, you gain a dependable tool that integrates smoothly into inspection routines, helps prevent misfits before assembly, and supports efficient workflows across production and maintenance tasks. Its durable build and standardized tolerances give you confidence, batch after batch, that threaded holes will accept components as designed.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715396686,"sku":"JBO-511859","price":83.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_245b2781-73c7-43bf-83da-550a5ac0ea2a.png?v=1739871091"},{"product_id":"jbo-511873","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M2.2 x 0.45","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision tool designed for metric coarse thread inspection. It helps engineers, machinists, quality inspectors, and assembly professionals quickly verify threaded holes for proper fit and function. This Right Hand, 6H gauge is configured for M2.2 x 0.45 threads and uses a straightforward go\/no-go approach to confirm acceptance or rejection with confidence.\n\u003c\/p\u003e\n\u003cp\u003e\nDesigned for daily workshop use, the gauge features a textured knurled grip for secure handling and a hardened steel body built to endure rigorous use without losing accuracy over time.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Design for Fast, Reliable Checks\u003c\/b\u003e: A simple pass\/fail test lets you verify threaded holes quickly, reducing inspection time and avoiding misfits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric Coarse Thread Target: M2.2 x 0.45, Right-Hand, 6H\u003c\/b\u003e: Precisely matched to standard coarse threads with a right-hand configuration and 6H tolerance for dependable fits across production runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened Steel Construction for Durability\u003c\/b\u003e: Built to withstand demanding shop conditions, maintaining accuracy and extending service life.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith the JBO Thread Plug Gauge, you can streamline quality checks, reduce rework, and keep assembly lines moving. The go\/no-go design provides quick, objective feedback on hole size and thread fit, while the hardened steel construction ensures lasting performance even in high-use environments. Whether you’re setting up a new process, performing incoming inspection, or confirming in-process tolerances, this gauge helps you achieve consistent results and confidence in every component.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715429454,"sku":"JBO-511873","price":89.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_65dde6b5-9811-4316-9400-14ab340c030c.png?v=1739871095"},{"product_id":"jbo-511879","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M2.3 x 0.4","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. This go\/no-go gauge quickly verifies threaded holes to ensure the correct fit in assemblies and housings. With a right-hand orientation and a size specification of M2.3 x 0.4 (6H tolerance), it’s ideal for quality control in manufacturing, machining, and repair environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go design for fast verification\u003c\/b\u003e: Quickly determine whether a threaded hole meets tolerance, reducing inspection time and preventing misfits in production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eM2.3 x 0.4 metric coarse thread compatibility\u003c\/b\u003e: Specifically matched to common metric coarse threads, delivering reliable checks for small-thread applications and consistent fitment across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction for lasting durability\u003c\/b\u003e: Built to withstand frequent use in demanding workshop settings while maintaining accurate, repeatable measurements over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUse this plug gauge to streamline quality control workflows: its fast, reliable checks help minimize downtime, improve assembly reliability, and support consistent results across batches. The sturdy construction ensures long-term performance, giving you confidence in every measurement and every fit.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715494990,"sku":"JBO-511879","price":92.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_3bb85695-ae1f-4d0c-b912-39296a4ad209.png?v=1739871098"},{"product_id":"jbo-511883","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M2.5 x 0.45","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed specifically for metric coarse threads, tailored to M2.5 x 0.45, with a right-hand orientation. It’s ideal for quality checks in machining, fabrication, and assembly environments, helping you verify threaded holes quickly and accurately.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Quick-Check System\u003c\/b\u003e: A simple pass\/fail design that speeds inspection, reduces guesswork, and delivers consistent results for every hole you test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eM2.5 x 0.45 Metric Coarse, Right-Hand Fit\u003c\/b\u003e: Precisely matches the intended thread profile and orientation, ensuring you’re testing the correct size for reliable assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Hardened Steel with Knurled Grip\u003c\/b\u003e: Built to withstand daily workshop use, resistant to wear, and easy to handle even with gloves or oily hands.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis gauge helps streamline your workflow by delivering fast, repeatable measurements that support first-pass assembly, reduce rework, and improve overall quality across production and maintenance tasks.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715527758,"sku":"JBO-511883","price":71.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_2e0ef829-b03d-451a-8dfc-c73c73fbc39b.png?v=1739871102"},{"product_id":"jbo-511894","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M2.6 x 0.45","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. It helps machinists, quality control staff, and assembly technicians quickly verify that threaded holes conform to the M2.6 x 0.45 coarse-thread standard, using a reliable go\/no-go check that confirms fit and function.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction\u003c\/b\u003e: Built to endure daily use in busy workshops, providing long-lasting durability and stable readings over many inspections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEfficient go\/no-go verification\u003c\/b\u003e: Quickly confirm whether a threaded hole meets tolerance, speeding up inspections and reducing downtime in production or assembly lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric coarse, right-hand 6H M2.6 x 0.45 calibration\u003c\/b\u003e: Precisely sized for the intended coarse thread with a right-hand orientation and 6H tolerance, delivering reliable, repeatable checks across parts and batches.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis gauge helps you maintain consistent quality from part to part. By delivering fast, objective pass\/fail results with a durable, dedicated tool, it supports improved workflow, reduces rework, and increases confidence in threaded-hole assemblies on the shop floor or in the quality lab.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715560526,"sku":"JBO-511894","price":90.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_92c4b76e-68e2-4eee-a5e0-fa4a05ac91f4.png?v=1739871105"},{"product_id":"jbo-512036","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M3 x 0.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision instrument for metric coarse threads, enabling fast, reliable go\/no-go checks of threaded holes. Its textured knurled grip provides secure handling in busy workshops, so operators can work confidently even when wearing gloves.\n\u003c\/p\u003e \u003cp\u003e\nBuilt for durability, this right-hand gauge is specified for M3 x 0.5 holes with a 6H tolerance and is crafted from hardened steel to stand up to regular use, wear, and repeated inspections.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Quick-Check\u003c\/b\u003e: Effortlessly confirm hole size and thread engagement in one pass, reducing inspection time and avoiding under- or over-tolerance parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened Steel Durability\u003c\/b\u003e: Rugged construction resists wear, maintains accuracy, and stands up to daily workshop use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric Coarse Thread Specificity (M3 x 0.5) with 6H Right-Hand Precision\u003c\/b\u003e: Specifically sized for M3 x 0.5 coarse threads with 6H tolerance, ensuring dependable checks for a wide range of miniature assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith the JBO Thread Plug Gauge, you streamline your inspection workflow. The go\/no-go design provides clear, decisive results, letting technicians quickly confirm hole size and thread engagement. The rugged, hardened steel body delivers repeatable measurements in busy shops, helping reduce downtime, rework, and rejected parts while supporting consistent fits across batches.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715593294,"sku":"JBO-512036","price":58.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_31d95f13-fb5e-422f-b399-ef4cb99f1b2d.png?v=1739871122"},{"product_id":"jbo-512059","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M3.5 x 0.6","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision tool designed to verify metric coarse threaded holes quickly and accurately. Specifically tailored for M3.5 x 0.6 coarse threads, it helps engineers, machinists, inspectors, and hobbyists confirm that a hole will accept a mating part with the correct fit. The go\/no-go design provides a clear, fast indication of acceptance or rejection, simplifying setup and quality checks.\n\u003c\/p\u003e\n\u003cp\u003e\nBuilt for daily workshop use, this plug gauge features a right-hand orientation with 6H tolerance and is crafted from hardened steel to withstand demanding inspection tasks. Its durable construction resists wear, maintains measurement integrity, and delivers reliable performance through thousands of checks.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go design for fast checks\u003c\/b\u003e: Quickly determine if the threaded hole meets specification with a clear pass\/fail indication, reducing inspection time and guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesigned for metric coarse threads (M3.5 x 0.6, Right Hand)\u003c\/b\u003e: Ensures consistent hole sizing and reliable component fit across production runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel for durability\u003c\/b\u003e: Withstands frequent use in busy environments, maintaining accuracy and reducing downtime due to wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\nUsed in setup, in-process checks, and final QA, this gauge helps you verify thread quality with confidence—speeding workflows, minimizing rework, and ensuring consistent performance of threaded assemblies from prototype through production.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715626062,"sku":"JBO-512059","price":63.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_7460032d-a534-46e0-9615-a601c1f59575.png?v=1739871126"},{"product_id":"jbo-512177","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M4 x 0.7","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a go\/no-go inspection tool designed for metric coarse threads. Specifically engineered for M4 x 0.7 coarse threads, it helps quality teams quickly verify threaded holes meet spec and will accept the intended components.\n\u003c\/p\u003e \u003cp\u003e\nWith a right-hand orientation and 6H tolerance, this gauge is built to withstand busy workshop use. The hardened steel construction offers lasting durability, ensuring reliable performance across numerous inspections and maintenance tasks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go accuracy\u003c\/b\u003e: Quickly determine whether internal threads are within tolerance by testing both the go and no-go limits, speeding up quality checks and reducing rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric Coarse thread compatibility\u003c\/b\u003e: Precisely matched to M4 x 0.7 coarse threads to ensure correct hole acceptance and mating fit in standard assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRugged, durable construction\u003c\/b\u003e: Hardened steel design stands up to repeated use in demanding environments, delivering consistent results over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis plug gauge simplifies inspection workflows, helping you confirm thread quality with confidence. Use it to minimize downtime, improve part compatibility, and maintain reliable performance across production and maintenance tasks.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715658830,"sku":"JBO-512177","price":55.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_2a55e566-7868-4b6c-a59e-1ccc1f4929b8.png?v=1739871143"},{"product_id":"jbo-512202","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M4.5 x 0.75","description":"\u003cdiv\u003e\n\u003cp\u003e\nJBO Thread Plug Gauge is a precision tool designed for metric coarse threads, specifically M4.5 x 0.75, with a right-hand configuration and 6H tolerance. This go\/no-go gauge helps you quickly verify threaded holes match the intended size, ensuring reliable fit and function in assemblies. Designed with two precision-threaded ends for simultaneous go and no-go checks. Built to endure daily workshop use, it combines a sturdy hardened steel construction with a comfortable knurled grip for steady handling, even when wearing gloves.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go design for fast, reliable checks\u003c\/b\u003e: Quickly determine if a hole is within spec by testing both the go and no-go conditions, reducing inspection time and rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel with easy handling\u003c\/b\u003e: Hardened steel resists wear and maintains accuracy over thousands of uses; knurled body provides a secure grip in busy work environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric coarse standard — M4.5 x 0.75, 6H, right-hand\u003c\/b\u003e: Precisely calibrated for common metric threads, ensuring consistent results across parts and suppliers, compatible with standard machined holes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsed in quality control, manufacturing, and repair operations, this plug gauge helps you confirm hole sizes quickly, protect assembly integrity, and keep production flowing. With its robust construction and straightforward use, you can trust it to deliver repeatable results, supporting tighter tolerances and better overall performance.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715691598,"sku":"JBO-512202","price":78.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_96f34ed7-2d73-4b0e-8a43-7ba6e5e23695.png?v=1739871147"},{"product_id":"jbo-512218","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M5 x 0.8","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. It’s ideal for engineers, machinists, quality teams, and workshop hobbyists who need a fast, reliable way to verify threaded holes before assembly. This right-hand gauge is calibrated for M5 x 0.8 coarse threads (6H tolerance) to ensure consistent, correct fits every time.\n\u003c\/p\u003e \u003cp\u003e\nConstructed from hardened steel, the gauge resists wear in busy shop environments and delivers long-lasting accuracy. Its compact, knurled body is easy to handle with or without gloves, making field and bench inspections straightforward and repeatable.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go inspection design\u003c\/b\u003e: Quickly verify hole tolerance with a practical go check for minimum material and a no-go check for maximum, speeding setup and reducing guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable hardened steel construction\u003c\/b\u003e: Built to withstand daily workshop use, resisting wear and maintaining accuracy for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric coarse thread compatibility (M5 x 0.8, 6H, Right-Hand)\u003c\/b\u003e: Designed specifically for coarse metric threads, ensuring you’re testing the correct size and thread form for reliable fits in production or repair work.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing this plug gauge streamlines quality control by providing instant answers on hole readiness, which shortens inspection times and improves throughput. The hardened steel construction and clear Go\/No-Go function help ensure every fastener and component seats correctly, reducing rework and returns. With standardized M5 x 0.8 checks, you can maintain consistent results across shifts and teams, boosting overall reliability in your manufacturing or repair workflow.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715724366,"sku":"JBO-512218","price":54.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_9fe28b0e-b0b2-4dd3-aed8-e1bbe171c093.png?v=1739871150"},{"product_id":"jbo-512252","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M6 x 1","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge is a precision go\/no-go tool designed for metric coarse threads, specifically calibrated for M6 x 1 holes. This right-hand thread gauge helps technicians, engineers, and quality teams verify thread fit quickly and reliably, ensuring components assemble correctly and consistently across the production line.\u003c\/p\u003e \u003cp\u003eBuilt for daily shop-floor use, it delivers straightforward pass\/fail feedback that speeds inspection workflows and reduces guesswork during assembly, maintenance, and refurbishment tasks. The result is smoother operations, fewer chamfers of mis-threaded parts, and more confident decisions on fitment.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Design for Quick Verification\u003c\/b\u003e: Allows fast, unambiguous checks of threaded holes, speeding inspections and reducing downtime by confirming proper thread engagement in seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Hardened Steel Construction\u003c\/b\u003e: Withstands repeated use in demanding environments, delivering long-lasting accuracy and reliable performance over many cycles of testing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric Coarse M6 x 1 Right-Hand Compatibility (6H)\u003c\/b\u003e: Precisely matched to standard metric coarse threads, ensuring consistent checks for right-hand M6 x 1 holes with 6H tolerance and reducing the risk of misfits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse the JBO Thread Plug Gauge to standardize thread verification across manufacturing and maintenance tasks. It supports faster decision-making, improves assembly reliability, and helps you maintain tight quality control without sacrificing workflow efficiency.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715789902,"sku":"JBO-512252","price":52.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_2c9d3582-da8a-48fe-892f-565e0b52c73d.png?v=1739871153"},{"product_id":"jbo-512286","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M7 x 1","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision Go\/No-Go tool designed specifically for metric coarse threads. It helps quality teams, machinists, and maintenance technicians quickly verify threaded holes, ensuring components thread smoothly and fit correctly the first time. With a right-hand orientation and 6H tolerance for M7 x 1 threads, this gauge is built from hardened steel to withstand daily use in busy workshops and deliver consistent results over time.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFast Go\/No-Go Checks\u003c\/b\u003e: Two precision ends let you quickly confirm proper thread depth and diameter, speeding up inspections and reducing guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Hardened Steel Construction\u003c\/b\u003e: Hardened steel resists wear, maintaining accuracy through repeated use in demanding shop environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric Coarse Thread Ready\u003c\/b\u003e: Specifically tuned for M7 x 1 coarse threads with 6H tolerance, ensuring reliable engagement with standard components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nIn practice, the JBO Thread Plug Gauge speeds threaded-hole inspection, reduces rework, and supports tighter quality control. The dual-ended Go\/No-Go design provides clear pass\/fail criteria, helping you set up assemblies faster and maintain consistent thread performance across parts and shifts.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715920974,"sku":"JBO-512286","price":59.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_ba43395b-b572-4575-961c-a4ff644c37da.png?v=1739871157"},{"product_id":"jbo-512305","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M8 x 1.25","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge is a right-hand, go\/no-go gauge designed to verify internal metric coarse threads, specifically M8 x 1.25, with a 6H tolerance. It delivers quick, reliable checks to ensure threaded holes accept fasteners as intended and assemblies fit properly. Built for everyday use in workshops, production lines, and quality control labs, this gauge helps teams confirm thread integrity with confidence.\u003c\/p\u003e \u003cp\u003eMade from hardened steel, this gauge withstands rigorous use and maintains its accuracy over many inspections. The design emphasizes durability and consistency, so you get reliable performance project after project.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go design for fast, confident checks\u003c\/b\u003e: quickly verify acceptable thread engagement; the go end confirms proper hole acceptance, while the no-go end flags out-of-tolerance holes to prevent misfits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction for long-lasting precision\u003c\/b\u003e: durable, wear-resistant body maintains dimensional integrity even after thousands of insertions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic, knurled body for secure handling\u003c\/b\u003e: textured grip and balanced form enable easy alignment and comfortable use in busy environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUsing the JBO Thread Plug Gauge streamlines quality control, reduces inspection time, and minimizes rework by delivering clear, repeatable results for M8 x 1.25 internal threads. Its robust build and precise go\/no-go operation provide reliable guidance on hole readiness, helping teams maintain consistent performance across workflows.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715953742,"sku":"JBO-512305","price":54.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_1a70d4a0-9d4a-4632-9059-4e4aa33528b8.png?v=1739871160"},{"product_id":"jbo-512345","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M9 x 1.25","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision tool for inspecting metric coarse threads in threaded holes. Designed for engineers, machinists, quality control teams, and maintenance professionals, it speeds up acceptance testing with a simple go\/no-go check that confirms holes are ready for assembly.\n\u003c\/p\u003e \u003cp\u003e\nSpecifically configured for right‑hand M9 x 1.25 coarse threads and 6H tolerance, this gauge is built from hardened steel for enduring performance in demanding shop environments, delivering reliable, repeatable results every time.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFast Go\/No-Go verification\u003c\/b\u003e: The go\/no-go design lets you quickly confirm whether a threaded hole passes or fails in a single check, reducing inspection time and rework and supporting consistent assembly across batches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesigned for metric coarse threads (M9 x 1.25)\u003c\/b\u003e: Precisely matched to M9 x 1.25 coarse threads, ensuring accurate hole evaluation for common components and fasteners used in everyday manufacturing and maintenance work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel construction with reliable durability\u003c\/b\u003e: Hardened steel resists wear from repeated insertions, providing long-lasting accuracy in busy workshops. A knurled body helps secure grip for precise handling.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing this plug gauge helps you verify hole readiness in seconds, speeding up quality control, reducing the risk of mismatched assemblies, and delivering consistent results across projects. Its rugged construction minimizes replacement needs, giving your team confidence to rely on accurate thread checks day after day.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273715986510,"sku":"JBO-512345","price":73.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_2b62981c-8caf-4c8e-90d5-3c536701005a.png?v=1739871164"},{"product_id":"jbo-511646","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M10 x 1.5","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge is a precision tool designed for metric coarse threads. Sized for M10 x 1.5 holes and built as a right-hand gauge with 6H tolerance, it enables fast go\/no-go checks to validate threaded holes and ensure proper component fitting.\u003c\/p\u003e\n\u003cp\u003eCrafted from hardened steel, this plug gauge resists wear in busy shop environments and delivers long-lasting accuracy for daily inspection tasks.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go inspection design\u003c\/b\u003e: Quickly determine if a threaded hole passes (go) or fails (no-go) the M10 x 1.5 coarse thread, reducing guesswork and rework in assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetric coarse thread compatibility\u003c\/b\u003e: Specifically matched to M10 x 1.5 coarse threads, ensuring reliable checks for fit and function with common components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRugged hardened steel construction\u003c\/b\u003e: Built to endure heavy use with a knurled grip for secure handling and a long service life in demanding environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith its Go\/No-Go design and robust construction, the JBO Thread Plug Gauge streamlines quality control and assembly workflows. It helps you confirm hole readiness quickly, reduces downtime from misfits, and supports consistent, reliable results across production runs and maintenance tasks. Whether you’re setting up new equipment, performing routine inspections, or coordinating with suppliers, this gauge provides clear, repeatable measurements you can trust.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273716019278,"sku":"JBO-511646","price":58.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_aec5ed09-360c-47f9-850f-ed051ce93548.png?v=1739871070"},{"product_id":"jbo-511679","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M11 x 1.5","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision tool for inspecting metric coarse threaded holes. It’s ideal for machinists, inspectors, engineers, and maintenance teams who need fast, reliable go\/no-go checks to confirm threads match specification.\n\u003cbr\u003e\u003cbr\u003e\nDesigned for right-hand M11 x 1.5 coarse threads with a 6H tolerance, this plug gauge uses a straightforward Go\/No-Go design to verify fitment at a glance, helping you reduce guesswork and rework in assembly and quality control.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go inspection for fast, at-a-glance verification\u003c\/b\u003e: Instantly confirms whether the hole meets the required tolerance, reducing inspection time and preventing misfits in assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecisely matched to M11 x 1.5 coarse threads\u003c\/b\u003e: Ensures reliable checks for this common metric size, supporting consistent fit and performance across parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened steel for lasting durability\u003c\/b\u003e: Withstands daily use in busy shop environments, delivering long tool life and repeatable results even after many cycles.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith the JBO Thread Plug Gauge, you gain faster, more reliable quality control, fewer rework cycles, and confidence that threaded holes will assemble correctly with mating parts. Its robust construction and precise go\/no-go function simplify workflow—from incoming inspection to final assembly—so your team can keep production moving smoothly and consistently.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273716052046,"sku":"JBO-511679","price":78.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_587b8ca5-da44-4b86-bdd9-90d61823b4bf.png?v=1739871074"},{"product_id":"jbo-511689","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M12 x 1.75","description":"\u003cdiv\u003e\n\u003cp\u003eThe JBO Thread Plug Gauge is a right-hand internal thread go\/no-go gauge designed for metric coarse threads. Sized for M12 x 1.75 with a 6H tolerance, it helps machinists, quality control inspectors, and assembly teams quickly verify threaded holes meet specification.\u003c\/p\u003e \u003cp\u003eBuilt for durability, the gauge is made from hardened steel to withstand daily use in busy workshops. A knurled grip on the body provides secure handling, while the go\/no-go test gives a clear pass\/fail check for hole readiness, helping reduce rework and ensure consistent assembly results.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Quick Verification\u003c\/b\u003e: Quickly confirm hole size with a simple pass\/fail test, reducing inspection time and rework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened Steel Durability\u003c\/b\u003e: Durable construction resists wear and maintains accuracy through frequent use in demanding environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesigned for M12 x 1.75 Coarse Threads\u003c\/b\u003e: Precisely matched to metric coarse thread standards for reliable fits and repeatable measurements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith this gauge, you can streamline quality checks, speed up setup, and improve assembly reliability across maintenance, manufacturing, and assembly tasks. Its proven durability and precise threading support consistent results, helping your team cut downtime and avoid costly misfits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273716084814,"sku":"JBO-511689","price":63.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_60048234-88c9-4d07-9d38-a5da92940bc9.png?v=1739871077"},{"product_id":"jbo-511730","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M14 x 2","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision tool designed to verify metric coarse internal threads, specifically M14 x 2. It’s ideal for engineers, machinists, quality teams, and maintenance personnel who need fast, reliable checks of threaded holes to ensure proper fit and function.\n\u003c\/p\u003e\n\u003cp\u003e\nIts go\/no-go design delivers immediate pass\/fail results, helping inspections stay efficient and accurate. Crafted in a right-hand configuration with a 6H specification, this gauge aligns with standard coarse-thread holes for consistent performance in demanding environments. The hardened steel construction provides enduring durability to withstand rigorous use over time.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Quick Check\u003c\/b\u003e: Quickly determine if a hole meets the M14 x 2 coarse-thread standard with a clear pass\/fail result, speeding up quality control and reducing guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRugged Hardened Steel Construction\u003c\/b\u003e: Built to resist wear and maintain accuracy through heavy use in busy workshops and production lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRight-Hand Metric Coarse Precision\u003c\/b\u003e: Specifically designed for metric coarse threads (M14 x 2) with a right-hand orientation to ensure correct alignment and reliable measurements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nUsing the JBO Thread Plug Gauge helps streamline inspections, improve consistency across parts and batches, and provide confidence that threaded holes will accept properly matched components on assembly. Its durable design supports long-term reliability in professional quality control workflows.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273716117582,"sku":"JBO-511730","price":69.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_f07d24cc-af0e-4dba-abdf-03672a44aca8.png?v=1739871081"},{"product_id":"jbo-511776","title":"JBO Thread Plug Gauge - Metric Coarse Go\/No-Go - Right Hand - 6H - M16 x 2","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. It enables go\/no-go checks of threaded holes, helping ensure proper fit and function across assemblies. Ideal for machinists, inspectors, and manufacturing teams, this gauge delivers fast, reliable verification without guesswork.\n\u003c\/p\u003e \u003cp\u003e\nBuilt from hardened steel for long-lasting accuracy, it tolerates heavy use in busy shops. The gauge is configured for right-hand threads with M16 x 2 sizing and a 6H tolerance, ensuring compatibility with standard components and consistent quality checks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGo\/No-Go Verification\u003c\/b\u003e: Quickly confirm hole size and thread engagement with clear pass\/fail results, speeding up quality checks and reducing guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardened Steel Durability\u003c\/b\u003e: Built to withstand repeated use in busy workshops, maintaining accuracy and long service life even under demanding conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStandard Metric Coarse (M16 x 2), Right-Hand, 6H\u003c\/b\u003e: Precisely sized to industry standards, ensuring reliable checks of coarse-threaded holes across parts and assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nWith the JBO Thread Plug Gauge, quality checks become faster, more consistent, and less error-prone. Inspect threaded holes at a glance, verify fitment during assembly, and reduce rework by catching mismatches early. The durable hardened steel construction means fewer replacements and less downtime, while the Go\/No-Go method provides clear, actionable results that you can trust across teams and shifts.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"JBO","offers":[{"title":"Default Title","offer_id":40273716150350,"sku":"JBO-511776","price":74.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/STI_JBO_1cccff3e-4dbb-4a75-b93c-825a2f689a42.png?v=1739871084"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/thread-gauges.oembed?page=3","provider":"Protool Precision Tools","version":"1.0","type":"link"}