{"title":"SR Indexable Thread Mill Inserts - UNJ","description":"","products":[{"product_id":"14i24unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I24UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert in UNJ with TiAlN coating is a versatile, high-precision tool designed for machinists working on common thread profiles. Built for reliability in both CNC and manual turning, it’s designed to deliver consistent thread quality across a range of applications.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number\u003c\/b\u003e: 14I24UNJ\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN-coated carbide for enhanced wear resistance and heat handling\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength Options\u003c\/b\u003e: Five lengths spanning from 12 mm to 40 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread Range\u003c\/b\u003e: Pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI (depending on length)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCutting Edges\u003c\/b\u003e: Double-sided with two cutting edges (except for BSPT \/ NPT \/ NPTF \/ American Buttress \/ API RD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External Capability\u003c\/b\u003e: For many profiles, one insert can machine both internal and external threads (exceptions: ISO \/ UN \/ NPSM \/ UNJ \/ Acme)\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned to simplify tooling, this insert combines robust carbide performance with a wear-resistant TiAlN coating to extend edge life in demanding materials and higher-speed operations. The double-edged design means you can flip for a fresh edge, reducing downtime between tool changes, while the five length options let you match depth of cut and thread diameter to your specific job. Ideal for precision threading tasks on lathes and CNC machines, it helps achieve clean, accurate threads with fewer passes.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316054634574,"sku":"14I24UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_c9013154-c8cf-4ffe-9cf0-da54a1c0dee6.jpg?v=1697553406"},{"product_id":"14e24unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14E24UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Insert – UNJ, TiAlN coated, is engineered for machinists who handle UNJ thread forms and a broad range of common thread profiles. This versatile carbide insert collection aims to reduce tool changes while delivering precise threads across multiple pitches.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN Coating\u003c\/b\u003e: TiAlN-coated carbide insert for enhanced heat resistance and extended cutting life in demanding threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUNJ Threading Capability\u003c\/b\u003e: Specifically designed for UNJ thread forms, designated 14E24UNJ, to support precise UNJ threading applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive Length Options\u003c\/b\u003e: Available in five lengths from 12 mm up to 40 mm, with pitches ranging from 0.5 mm (32 TPI) to 6.0 mm (4 TPI) depending on length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-Sided Cutting Edges\u003c\/b\u003e: Each insert offers two cutting edges for increased usable life, with exceptions for BSPT, NPT, NPTF, American Buttress, and API RD profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External Capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external applications, except for ISO \/ UN \/ NPSM \/ UNJ \/ Acme profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComprehensive Profile Coverage\u003c\/b\u003e: A versatile collection designed to cover all common thread profiles, streamlining procurement and stock management.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis TiAlN-coated carbide threading insert delivers dependable performance across a wide range of threads, reducing interruptions and improving throughput in CNC and manual machining setups. The combination of multiple lengths, dual cutting edges, and broad profile coverage makes it a practical choice for workshops that handle varied threading tasks—from fine-pitch work to coarser UNJ threads—without switching tooling often. Note the UNJ-specific consideration for internal vs external threading to ensure optimal results on your setup.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316054896718,"sku":"14E24UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_7f30fcbe-bfd9-4848-bf8b-d0e5126926ff.jpg?v=1697553409"},{"product_id":"14i20unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I20UNJ","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert for UNJ, TiAlN coated, is a precision tool designed for machinists who need reliable UNJ and related thread forms with durable, long-lasting performance.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN-coated carbide insert for enhanced wear resistance and higher-temperature capability in tough threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles\u003c\/b\u003e: A versatile collection that covers all common thread profiles, simplifying tooling choices for widespread UNJ applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths available (12 mm to 40 mm) to match depth and pitch requirements across projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI for flexible threading capability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert has two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles), maximizing edge life and reducing tool changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading compatibility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, improving workflow efficiency (with exceptions for ISO \/ UN \/ NPSM \/ UNJ \/ Acme).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to streamline threading workflows, this UNJ-focused carbide insert set delivers consistent thread quality across a variety of profiles while reducing tool changes and inventory. The TiAlN coating helps sustain performance in demanding materials, and the double-edged design extends usable life between regrinds or replacements. Whether you’re producing precise internal threads or external threads on steel, alloy, or similar workpieces, these inserts offer dependable, versatile performance for everyday machining needs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055027790,"sku":"14I20UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_a21aea07-6601-4344-99d5-ae0145ca3928.jpg?v=1697553413"},{"product_id":"14e20unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14E20UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Insert in UNJ size delivers durable, precise threading performance for engineers and machinists working with UNJ profiles. With a TiAlN coating and a versatile edge design, this insert is built to handle a range of common thread profiles in demanding manufacturing environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eProfile\u003c\/b\u003e: UNJ threading insert designed to tackle UNJ thread applications with reliable precision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN-coated carbide for enhanced wear resistance and heat tolerance during cutting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Solid carbide construction for rigidity and long-edge life under demanding cutting conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLengths\u003c\/b\u003e: Five available lengths from 12 mm to 40 mm to suit different tooling setups and workpiece geometries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Compatible with pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI, depending on the chosen length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided edges\u003c\/b\u003e: Inserts are double-sided with two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles), maximizing use before index.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External versatility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, with exceptions for ISO \/ UN \/ NPSM \/ UNJ \/ Acme.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert is designed to simplify threading workflows: rotate to use a fresh edge, reduce tool changes, and maintain consistent thread quality across a range of profile standards. The TiAlN coating helps extend tool life when machining harder materials, while the five length options let you tailor the insert to your machine spindle and workpiece geometry. Ideal for precision components and assemblies that require robust UNJ threading with dependable performance.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055060558,"sku":"14E20UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_8f042205-9a83-4ae6-9608-adf52728c03e.jpg?v=1697553417"},{"product_id":"14i18unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I18UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Insert – UNJ, TiAlN coated, model 14I18UNJ – a durable, versatile threading solution built for professionals who demand reliable performance on lathes and CNC machines.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCoating \u0026amp; material\u003c\/b\u003e: TiAlN-coated carbide insert designed to withstand heat and wear for longer tool life during threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five available lengths (from 12 mm to 40 mm) to fit a wide range of tool holders and setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Broad threading capability from 0.5 mm (32 TPI) to 6.0 mm (4 TPI) for common thread profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided edges\u003c\/b\u003e: Each insert has two cutting edges (except BSPT\/NPT\/NPTF\/American Buttress\/API RD) for extended use before reindexing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external applications (except ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThe Carmex 14I18UNJ threading insert is designed to deliver consistent thread forms across a range of standard profiles, helping you minimize tool changes and maintain accuracy on every pass. The TiAlN coating enhances heat resistance for steadier cutting performance, while the multi-length, multi-pitch design provides the flexibility to tackle diverse jobs without carrying multiple dedicated inserts. Keep in mind the profile-specific caveats for ISO, UN, NPSM, UNJ, and Acme when selecting the exact geometry for a given project.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055126094,"sku":"14I18UNJ","price":26.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_19d152aa-e2ce-4c39-8fdc-51d9961e16db.jpg?v=1697553421"},{"product_id":"14e18unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14E18UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for UNJ threads is a precision, TiAlN-coated carbide tool designed for reliable UNJ threading in metalworking. Built for machinists and job shops, it delivers consistent performance across common thread profiles with multiple length options to fit the task.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThreading coverage\u003c\/b\u003e: A versatile collection that spans all common thread profiles, enabling broad compatibility in a single insert family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLengths\u003c\/b\u003e: Available in 5 lengths from 12 mm up to 40 mm to match the depth and pitch of your project.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitches supported\u003c\/b\u003e: Depending on length, capable of handling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Solid carbide insert with a TiAlN coating for enhanced wear resistance and higher heat tolerance during threading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEdge configuration\u003c\/b\u003e: Double-sided design with two cutting edges to extend tool life and reduce downtime (except for BSPT, NPT, NPTF, American Buttress, and API RD profiles).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, increasing versatility (with exceptions for ISO, UN, NPSM, UNJ, and Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUNJ designation\u003c\/b\u003e: Specifically suited for UNJ thread profiles, supporting accurate, consistent results on precision components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating benefits\u003c\/b\u003e: TiAlN coating provides superior wear resistance and thermal stability, helping maintain accuracy at elevated cutting speeds.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert is ideal for shops that handle a range of threaded components—from prototype runs to production batches—where minimizing tool changes and achieving dependable thread quality matters. Its dual-edge design and broad pitch range make it a practical choice for mixed-threading tasks, while the UNJ focus ensures precise thread form and finish. The combination of carbide hardness and TiAlN coating translates to longer tool life and steadier performance across challenging materials.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055158862,"sku":"14E18UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_2a79ccde-46d9-46cb-97d4-4f451800a9a7.jpg?v=1697553425"},{"product_id":"14i16unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I16UNJ","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I16UNJ is a versatile carbide insert designed for professionals who need reliable, long-lasting threading across a wide range of profiles.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating delivers enhanced hardness and heat resistance for steady performance at higher cutting speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles coverage\u003c\/b\u003e: A comprehensive collection that spans all common thread profiles, consolidating your threading needs into one insert family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert has two cutting edges for extended life and fewer tool changes (exceptions apply for BSPT\/NPT\/NPTF\/American Buttress\/API RD and certain standards).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal and external threading compatibility\u003c\/b\u003e: For many profiles, the same insert can machine both internal and external threads, increasing versatility while reducing inventory (note: ISO\/UN\/NPSM\/UNJ\/Acme are excluded).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths available from 12 mm to 40 mm to fit a variety of tool holders and threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Capable of handling pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), covering key metric and imperial standards.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis insert delivers dependable thread quality with durable edge life, making it a practical choice for job shops and production environments. The TiAlN coating helps maintain performance under speed and heat, while the dual-edge design lets you rotate or reindex edges to extend tool life and keep your threading operations consistent.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055191630,"sku":"14I16UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_3f3218d7-506a-4656-8ceb-4e2361d5df9c.jpg?v=1697553428"},{"product_id":"14e16unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14E16UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for UNJ threads is a durable, TiAlN-coated solution built for machinists who regularly cut UN and UNJ thread profiles. Designed to deliver reliable performance across a wide range of pitches and thread types, it’s a practical choice for precise threading in metalworking environments.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options (12–40 mm)\u003c\/b\u003e: a versatile family of inserts that spans typical thread profiles, enabling broad coverage without swapping tooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide pitch range\u003c\/b\u003e: handles pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI, with compatibility depending on the chosen length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN-coated carbide\u003c\/b\u003e: enhanced wear resistance and heat tolerance for longer insert life and steadier cutting performance in demanding operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-edged design\u003c\/b\u003e: each insert provides two cutting edges for extended use, reducing tool changes (exceptions apply for BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading versatility\u003c\/b\u003e: for many thread profiles, the same insert can machine both internal and external threads; note that some profiles (ISO \/ UN \/ NPSM \/ UNJ \/ Acme) have specialized requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned to simplify threading workflows, this insert offers consistent chip control and clean thread finishes across a variety of applications—from plumbing fittings to precision fasteners. Its robust construction and edge geometry help maintain accuracy over multiple passes, making it a reliable choice for medium- to high-demand threading tasks in workshops and production environments.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055322702,"sku":"14E16UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_ab612438-48c6-49a1-9622-3a1305af6d00.jpg?v=1697553432"},{"product_id":"14i14unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I14UNJ","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert – UNJ, TiAlN coated – 14I14UNJ – is a versatile threading solution designed for precision on lathes and CNC machines. It covers the industry’s most common thread profiles with durability and consistent results across a wide range of parts.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Available in five lengths from 12 mm to 40 mm to fit different machines and engagement requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Capable of threading from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), depending on the inserted length, enabling a broad set of standard thread pitches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN-coated carbide for enhanced wear resistance and heat tolerance, delivering longer insert life in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCutting edges\u003c\/b\u003e: Double-sided design provides two cutting edges per insert (except for BSPT, NPT, NPTF, American Buttress, and API RD geometries), maximizing usable life between changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External versatility\u003c\/b\u003e: For many thread profiles, one insert can machine both internal and external threads, reducing tool changes—note that some geometries (ISO, UN, NPSM, UNJ, Acme) may require a specific orientation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial and stability\u003c\/b\u003e: High-precision carbide construction delivers rigidity and consistent thread forms, even on tougher materials.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for professional workshops that demand reliability and efficiency, this insert delivers steady, accurate threading with fewer tool changes and simpler inventory. The combination of a TiAlN coating, dual cutting edges, and a broad range of lengths and pitches supports a wide variety of parts—from fine, precision screws to larger screw forms—without switching tooling mid-project. Its UNJ designation and broad coverage mean you can tackle many common thread profiles with a single, dependable carbide insert, while keeping within practical geometry considerations for internal versus external threading.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055355470,"sku":"14I14UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_06250389-1228-4315-aba8-379b544ca379.jpg?v=1697553435"},{"product_id":"14e14unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14E14UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for UNJ, TiAlN coated, is a versatile threading solution designed for machinists who need reliable performance across a wide range of thread forms. This insert family covers many common profiles with multiple length options, making it a practical choice for both production and shop-floor threading tasks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eProfiles \u0026amp; coverage\u003c\/b\u003e: Broad compatibility with the most commonly used threading profiles, backed by five available lengths (12 mm to 40 mm) to suit your setup and reach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: 12 mm, 16 mm, 20 mm, 30 mm, and 40 mm lengths provide flexibility for different hole depths and external diameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), enabling both fine and coarse threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert has two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD), allowing reindexing to extend tool life without changing inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial \u0026amp; coating\u003c\/b\u003e: Solid carbide substrate with TiAlN coating for improved wear resistance and higher hardness at temperature, promoting longer life and steadier performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, reducing tool changes—note exceptions apply for ISO, UN, NPSM, UNJ, and Acme.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis threading insert is designed to deliver consistent, precise threads with minimal downtime. The TiAlN coating helps maintain cutting efficiency at higher speeds and temperatures, while the dual-edge design provides extended use before indexing. Ideal for production runs and workshop machining, it supports a broad range of metric and imperial thread forms, helping you standardize tooling and reduce inventory complexity.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055552078,"sku":"14E14UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_306af93a-02a8-4cfb-b0b1-515b9075298b.jpg?v=1697553439"},{"product_id":"14i12unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14I12UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for UNJ threads is a TiAlN-coated carbide solution designed to deliver precise, reliable threading across a wide range of common profiles. Built for machinists and production environments, this insert family offers versatility and durability in a single, interchangeable tool.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles\u003c\/b\u003e: A versatile collection that covers all common thread profiles with a single insert family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLengths\u003c\/b\u003e: Five length options ranging from 12 mm to 40 mm to match different pitch requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on the length, suitable for pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCutting edges\u003c\/b\u003e: Double-sided design with two cutting edges for most profiles, extending tool life (exceptions apply for BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external applications (except ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN-coated carbide for improved wear resistance and heat tolerance, helping maintain precision under demanding cutting conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSubstrate\u003c\/b\u003e: Carbide insert designed for enduring performance and long tool life in threading operations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned to reduce tool changes and inventory while maintaining consistent thread quality, this UNJ-compatible insert delivers dependable results across varied materials and pitches. The TiAlN coating helps manage heat during deeper or faster passes, while the dual-cutting-edge design provides the option to index for a fresh edge without swapping inserts. Ideal for job shops and high--output setups that require flexible threading capability without compromising accuracy.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055748686,"sku":"14I12UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_bebe93d3-57b2-4b9f-8caf-fd3b77507542.jpg?v=1697553442"},{"product_id":"14e12unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 14E12UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Insert - UNJ is a TiAlN-coated carbide insert designed for precise threading across common profiles, ideal for professional shops handling UNJ and other standard thread forms with reliability and durability.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive lengths\u003c\/b\u003e: Five length options (12 mm to 40 mm) to suit different toolholders and pitch requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: Titanium Aluminum Nitride coating enhances wear resistance and hot-hardness, extending insert life in demanding materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-edged cutting\u003c\/b\u003e: Each insert is double-sided with two cutting edges for extended use—note: BSPT, NPT, NPTF, American Buttress, and API RD variants are not double-sided.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading compatibility\u003c\/b\u003e: For many profiles, the same insert can machine both internal and external threads, enabling faster setups; ISO, UN, NPSM, UNJ, and Acme profiles require dedicated inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide pitch coverage\u003c\/b\u003e: Supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), covering a broad range of metric and imperial threads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis carbide threading insert family delivers consistent thread form and surface quality while reducing tool changes and downtime. The TiAlN coating boosts durability under high-temperature cutting, and the varied lengths provide practical versatility for different machining scenarios—from prototype runs to production work—without compromising precision on UNJ and other common thread profiles.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055781454,"sku":"14E12UNJ","price":32.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_db32aed1-6b58-463f-9cc2-3f87c55012cc.jpg?v=1697553446"},{"product_id":"21i24unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I24UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert - UNJ, TiAlN coated, model 21I24UNJ is a versatile threading solution designed for professionals who machine UNJ and related thread forms. Built for durability and precise results, it covers a broad range of common thread profiles with a single, efficient insert.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive-length range\u003c\/b\u003e: Available in five lengths from 12 mm to 40 mm to suit different hole depths and shoulders without changing inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide pitch compatibility\u003c\/b\u003e: Supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) to match a wide variety of standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert typically has two cutting edges for extended life, improving productivity (exceptions apply for BSPT, NPT, NPTF, American Buttress, and API RD profiles).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external threading capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, offering flexibility and reducing tool inventory (note: ISO\/UN\/NPSM\/UNJ\/Acme profiles may require specific considerations).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN-coated carbide construction\u003c\/b\u003e: The TiAlN coating enhances wear resistance and heat tolerance, promoting longer tool life in demanding threading operations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for reliability in professional workshops, this UNJ-threading insert delivers consistent thread quality across common profiles. Its versatile length options, broad pitch coverage, and coating work together to reduce tool changes, speed up production, and simplify your threading workflow. Ideal for shops handling UNJ and related thread forms, it supports both routine and more challenging threading tasks with confidence.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055814222,"sku":"21I24UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_a5396a58-a4be-4c6d-8472-11135880d879.jpg?v=1697553450"},{"product_id":"21e24unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E24UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert - UNJ - TiAlN Coated (21E24UNJ) is a versatile, hard-wearing solution for precision threading on lathes and turning centers. Designed for professionals who need reliable performance across common thread profiles, it blends durability with flexible application in a single insert.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: Hard-wearing TiAlN coating boosts hardness and heat resistance for consistent cutting performance at higher speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUNJ threading compatibility\u003c\/b\u003e: Specifically engineered to tackle UNJ thread forms, with broad coverage for many standard profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Available in 5 lengths (from 12 mm to 40 mm) to fit a range of tools and workpiece depths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) for versatile threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-edged inserts\u003c\/b\u003e: Each insert provides two cutting edges for extended use (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD where this may not apply).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external capability\u003c\/b\u003e: In many profiles, the same insert can machine both internal and external threads, reducing tool changes (with exceptions for ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCarbide substrate\u003c\/b\u003e: Solid carbide base delivers rigidity, wear resistance, and stable thread accuracy across multiple passes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned for machinists who value efficiency and consistency, this insert helps you achieve accurate UNJ threads while maintaining tool life. The TiAlN coating minimizes built-up edge and heat, enabling reliable performance across a range of materials and turning speeds. Its versatile length options and broad pitch coverage mean fewer tool changes and a smaller inserts inventory, making it a practical choice for production runs and job shops alike.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316055879758,"sku":"21E24UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_5a235a33-ec72-46ce-95c4-7f04de456bb8.jpg?v=1697553453"},{"product_id":"21i20unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I20UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for UNJ threads is a versatile, TiAlN-coated cutting solution designed for professional machinists and job shops that need reliable, multi-profile threading capability in a compact, durable form.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: available in 12 mm to 40 mm lengths to match a wide range of thread profiles and cutting depths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUNJ in TiAlN-coated carbide\u003c\/b\u003e: rugged carbide substrate with TiAlN coating for improved wear resistance and longer insert life in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: each insert provides two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles), maximizing usage before indexing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal \u0026amp; external capability\u003c\/b\u003e: for many thread forms, the same insert can machine both internal and external threads, with exceptions for ISO\/UN\/NPSM\/UNJ\/Acme profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide pitch coverage\u003c\/b\u003e: depending on length, supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), enabling common and practical threading tasks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nDesigned to cover the most frequently encountered thread profiles, this UNJ threading insert helps machinists complete precision threads with reduced tool changes. Its durable carbide construction and TiAlN coating balance hardness and heat management, delivering consistent performance across a variety of metalworking applications. Whether you’re prototyping a component or producing a small batch, this insert provides dependable cutting edges, extended life, and flexible use across many standard threading tasks.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056076366,"sku":"21I20UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_5e355c2a-8a8e-4b3d-8041-942601f1d4fb.jpg?v=1697553457"},{"product_id":"21e20unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E20UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert for UNJ, TiAlN coated (model 21E20UNJ) is a versatile solution for precision threading across common profiles. Built for machinists and workshops that value consistent performance and long tool life.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Solid carbide substrate for rigidity and wear resistance in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating enhances hardness and heat resistance, helping maintain cutting efficiency during high-temperature threading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles\u003c\/b\u003e: Covers all common thread profiles in one insert family, streamlining setup for diverse projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLengths\u003c\/b\u003e: Five lengths available, from 12 mm to 40 mm, to fit different hole depths and workpiece geometries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on length, capable of threading pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble cutting edges\u003c\/b\u003e: Inserts are double-sided with two cutting edges (except for BSPT\/NPT\/NPTF\/American Buttress\/API RD variants) for extended use between indexings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, with exceptions for ISO\/UN\/NPSM\/UNJ\/Acme.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesignation\u003c\/b\u003e: 21E20UNJ, a precise identifier to ensure you select the UNJ-specific variant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand\u003c\/b\u003e: Carmex, a trusted name in carbide tooling and threading solutions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert is designed to deliver reliable thread quality with minimal tool changes thanks to its dual-edge design, while the TiAlN coating provides resilience under heat and friction. Its five length options let you tailor engagement and reach to your specific machining setup, helping you achieve consistent thread profiles across a variety of workpieces without inventory clutter. Ideal for shops performing both routine and mixed-threading tasks where durability and precision are essential.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056109134,"sku":"21E20UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_a2c15b95-5d10-4a57-932b-ee4d92b97362.jpg?v=1697553460"},{"product_id":"21i18unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I18UNJ","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I18UNJ is a versatile, high-precision threading solution built for machinists who work with UNJ and other common thread profiles. Crafted from carbide and finished with a TiAlN coating, it delivers reliable performance across challenging cutting conditions.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Carbide insert for exceptional rigidity, wear resistance, and long edge life during high-speed threading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating enhances hardness and heat resistance, helping maintain sharpness and extend tool life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths available, ranging from 12 mm to 40 mm, to suit different thread profiles and pitch requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Depending on length, capable of handling pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI for broad threading versatility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided design\u003c\/b\u003e: Most inserts feature two cutting edges to maximize usable life (excluding BSPT\/NPT\/NPTF\/American Buttress\/API RD profiles).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading versatility\u003c\/b\u003e: For many thread profiles, a single insert can machine both internal and external threads, reducing tool changes (with exceptions for ISO \/ UN \/ NPSM \/ UNJ \/ Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUNJ-ready\u003c\/b\u003e: Specifically suited for UNJ thread forms, aligned with the 21I18UNJ designation for precise UNJ applications.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to streamline threading work, this insert helps shops reduce downtime and tooling costs. The TiAlN-coated carbide body maintains edge life under demanding passes, while the range of available lengths and broad profile coverage lets you tackle a wide variety of threading tasks with a single insert family. Whether you’re producing fine pitches or coarser threads, you can expect consistent performance, clean finishes, and reliable repeatability across multiple jobs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056141902,"sku":"21I18UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_de67c00d-741c-4314-9d54-f2d54973083e.jpg?v=1697553464"},{"product_id":"21e18unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E18UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nCarmex Carbide Threading Insert for UNJ threads is a TiAlN-coated, high-precision solution built for machinists who need reliable UNJ threading across the most common profiles. Designed for versatility in busy shops, it delivers consistent results with minimal downtime.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRange and length options\u003c\/b\u003e: Five lengths from 12 mm to 40 mm, covering a broad set of threading tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating and material\u003c\/b\u003e: TiAlN-coated carbide insert for enhanced hardness, wear resistance, and longevity in demanding cutting environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided edges\u003c\/b\u003e: Two cutting edges per insert (except for BSPT \/ NPT \/ NPTF \/ American Buttress \/ API RD), reducing tool changes and extending productivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading flexibility\u003c\/b\u003e: For many profiles, the same insert can machine both internal and external threads, with exceptions for ISO \/ UN \/ NPSM \/ UNJ \/ Acme profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch compatibility\u003c\/b\u003e: Depending on length, supports pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI), enabling a wide range of UNJ and common thread forms.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert is engineered to streamline threading operations—from job-shop setups to high-volume production. The TiAlN coating helps maintain edge life under higher cutting speeds, while the carbide substrate provides the rigidity needed for clean, accurate threads. Ideal for CNC lathes and milling centers handling UNJ and other standard thread profiles, it minimizes tool swaps and delivers repeatable results across multiple jobs.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056174670,"sku":"21E18UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_41c00abc-b481-4292-92e4-b58531877447.jpg?v=1697553468"},{"product_id":"21i16unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I16UNJ","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert - UNJ - TiAlN Coated (21I16UNJ) is a versatile threading solution designed for machinists who work with a wide range of thread profiles. Built to perform in both internal and external threading tasks, it delivers dependable, precision results across multiple applications.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profile coverage\u003c\/b\u003e: A versatile collection of inserts that covers all common thread profiles, reducing the need for multiple tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths spanning from 12 mm up to 40 mm to match different depths and pitches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: Capable of handling pitches from 0.5 mm \/ 32 TPI to 6.0 mm \/ 4 TPI.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert has two cutting edges for extended wear life (note exceptions for BSPT\/NPT\/NPTF\/American Buttress\/API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/external capability\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads (exceptions for ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating\u003c\/b\u003e: TiAlN coating enhances wear resistance and heat tolerance for longer insert life in demanding materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial\u003c\/b\u003e: Carbide substrate delivers rigidity, precision, and reliable performance in threading operations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith this insert, you gain a streamlined, economical tool that supports a broad range of thread forms without swapping to multiple inserts. The double-edged design minimizes downtime by enabling reuse across cuts, while the TiAlN coating helps maintain a sharp edge in higher-temperature work. Ideal for job shops and production environments, it simplifies tooling inventories, speeds setup, and delivers consistent thread quality across UNJ and other common profiles.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056272974,"sku":"21I16UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_c071ad14-a76f-4654-b7e8-3fb851e11d3e.jpg?v=1697553471"},{"product_id":"21e16unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E16UNJ","description":"\u003cdiv\u003e\n\u003cp\u003eThe Carmex Carbide Threading Insert - UNJ, TiAlN Coated (model 21E16UNJ) is a versatile, high-precision cutting solution built for professional machining where reliable multi-profile threading is essential. Designed for machinists who want fewer tool changes and consistent results across common thread forms.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: A comprehensive collection of carbide threading inserts that span all common thread profiles to support diverse projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLengths and pitches\u003c\/b\u003e: Five lengths from 12 mm to 40 mm, enabling pitches from 0.5 mm (32 TPI) up to 6.0 mm (4 TPI) to match your job requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert offers two cutting edges for extended tool life (except BSPT\/NPT\/NPTF\/American Buttress\/API RD variants).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal and external compatibility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads, simplifying tooling (excludes ISO\/UN\/NPSM\/UNJ\/Acme).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoating and construction\u003c\/b\u003e: TiAlN coating enhances hardness and wear resistance, helping maintain accuracy and prolonging insert life on demanding materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eModel designation\u003c\/b\u003e: Identified as 21E16UNJ, a reliable choice for UNJ and related threading tasks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eBenefits: This single, well-structured set reduces the need to stock multiple single-profile inserts. Its TiAlN-coated carbide construction delivers durable performance under higher cutting speeds and temperatures, helping you achieve clean, precise threads with fewer passes. The dual-edge design and cross-profile compatibility mean fewer tool changes, lower downtime, and consistent results whether you’re threading internal bores or external shafts. Ideal for shops handling automotive, aerospace, and precision mechanical components where UNJ and other standard thread forms are routine.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056305742,"sku":"21E16UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_8e8d9b8b-64dc-4c3d-ac4b-22101a0c41a6.jpg?v=1697553475"},{"product_id":"21i14unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I14UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert – UNJ, TiAlN Coated (21I14UNJ) is a durable, precision carbide insert designed for UNJ threading on metal parts. Built for machinists and shops that tackle a range of common thread profiles, it delivers reliable performance on CNC lathes and turning centers.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN coating\u003c\/b\u003e: TiAlN-coated carbide delivers excellent wear resistance and heat tolerance for higher-speed threading and longer tool life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDesignation\u003c\/b\u003e: 21I14UNJ, engineered specifically for UNJ thread profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive lengths\u003c\/b\u003e: five available lengths spanning from 12 mm to 40 mm to fit different toolholders and reach requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePitch range\u003c\/b\u003e: handles pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI across the selectable lengths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: two cutting edges extend tool life; note exceptions for BSPT\/NPT\/NPTF\/American Buttress\/API RD threads where edge configuration differs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External capability\u003c\/b\u003e: for many thread profiles, the same insert can machine both internal and external threads, though this interchangeability does not apply to ISO \/ UN \/ NPSM \/ UNJ \/ Acme.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVersatile and precise\u003c\/b\u003e: designed to cover all common thread profiles with consistent geometry to support accurate, clean threads and repeatable results.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nIdeal for job shops and production environments requiring a compact, reliable tool for UNJ threading across a range of pitches. The TiAlN coating improves performance in demanding cutting conditions, while multiple lengths provide flexibility to optimize chip load and engagement for your specific machine setup.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056338510,"sku":"21I14UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_0a70a265-6038-41c2-a8c4-55bb3a86f204.jpg?v=1697553479"},{"product_id":"21e14unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E14UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nDesigned for UNJ threading, the Carmex Carbide Threading Insert delivers precise, durable performance with a TiAlN coating that stands up to demanding metalworking conditions. It's a versatile solution for machinists who work across common thread profiles and need reliable results with every cut.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial and coating\u003c\/b\u003e: Carbide insert with TiAlN coating for enhanced wear resistance and heat management during threading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThread profiles covered\u003c\/b\u003e: A versatile collection that covers all common thread profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength options\u003c\/b\u003e: Five lengths available, from 12 mm to 40 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: The inserts are double sided, i.e. have two cutting edges (except BSPT \/ NPT \/ NPTF \/ American Buttress \/ API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading compatibility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external applications (except ISO \/ UN \/ NPSM \/ UNJ \/ Acme).\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThe design combines two cutting edges per insert with a TiAlN coating for longer life and consistent thread finishes. The five-length range (12 mm–40 mm) helps you match insert size to hole depth and pitch requirements, reducing guesswork in setup and tooling. While many profiles allow the same insert to handle both internal and external threading, be mindful of exceptions such as ISO, UN, NPSM, UNJ, and Acme workloads. This Carmex UNJ threading insert is a practical, dependable choice for job shops and production environments that value repeatable results and efficient setups.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056371278,"sku":"21E14UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_c2c489e5-ec35-4e6a-a18b-f7a5c925bf7f.jpg?v=1697553482"},{"product_id":"21i12unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21I12UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert, UNJ, TiAlN coated, is a durable, versatile solution for precision threading across common profiles. Designed for machinists and production environments, it delivers reliable performance and extended tool life in both internal and external threading tasks.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN-coated carbide construction\u003c\/b\u003e: Enhances hardness and heat resistance, helping the insert maintain sharpness and extend life in demanding threading operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUNJ threading optimization\u003c\/b\u003e: Geometry engineered to support UNJ thread forms, delivering accurate cuts and clean thread finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Available in 12 mm, 16 mm, 25 mm, 32 mm, and 40 mm lengths to match a wide range of pitches and machine setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide pitch range\u003c\/b\u003e: Supports pitches from 0.5 mm \/ 32 TPI up to 6.0 mm \/ 4 TPI, depending on the chosen length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert has two cutting edges for extended life and efficient edge utilization (except for BSPT \/ NPT \/ NPTF \/ American Buttress \/ API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading versatility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external threads; note that certain profiles (ISO \/ UN \/ NPSM \/ UNJ \/ Acme) have profile-specific usage considerations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert combines robust carbide with a TiAlN coating to deliver dependable performance across a spectrum of threading tasks. With multiple lengths and a broad pitch range, it adapts to various tools and setups, helping shops reduce inventory while maintaining consistent thread quality. The dual-edge design minimizes downtime by letting you quickly index to a fresh edge, supporting efficient production workflows and precise, repeatable results.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056731726,"sku":"21I12UNJ","price":35.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_5c1a96ea-6551-4040-9e6d-2cdc79dbb3c0.jpg?v=1697553485"},{"product_id":"21e12unj","title":"Carmex Carbide Threading Insert - UNJ - TiAlN Coated - 21E12UNJ","description":"\u003cdiv\u003e\n\u003cp\u003e\nThe Carmex Carbide Threading Insert (UNJ) with TiAlN coating is a versatile threading solution designed for machinists who need reliable performance across common thread profiles. Built for durability and consistency, it supports a range of internal and external threading tasks where applicable.\n\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFive length options\u003c\/b\u003e: Available in 12 mm to 40 mm lengths, providing the right reach and rigidity for different workpieces and depths of cut.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDouble-sided cutting edges\u003c\/b\u003e: Each insert has two cutting edges for extended tool life and fewer index changes (except for BSPT \/ NPT \/ NPTF \/ American Buttress \/ API RD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiAlN-coated carbide\u003c\/b\u003e: The TiAlN coating reduces wear and extends insert life in demanding threading applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWide pitch compatibility\u003c\/b\u003e: Depending on length, it can handle pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInternal\/External threading versatility\u003c\/b\u003e: For many thread profiles, the same insert can machine both internal and external applications, with exceptions for ISO \/ UN \/ NPSM \/ UNJ \/ Acme profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUNJ threading insert code\u003c\/b\u003e: Designed as part of the UNJ family to address common UNJ threading tasks with reliable performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\nThis insert blends robust carbide construction with a protective TiAlN finish to deliver dependable threading performance across a variety of projects. Its multi-length lineup and dual cutting edges help streamline setups, while the broad pitch range supports a wide array of thread specifications. Ideal for precision machining shops and fabrication environments that value consistency, efficiency, and tool longevity.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carmex","offers":[{"title":"Default Title","offer_id":40316056764494,"sku":"21E12UNJ","price":43.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/3747\/4382\/files\/sr-insert_b4eb5dcb-92e0-4166-b456-0a424a1e8e03.jpg?v=1697553489"}],"url":"https:\/\/www.protool-ltd.co.uk\/collections\/sr-indexable-thread-mill-inserts-unj.oembed","provider":"Protool Precision Tools","version":"1.0","type":"link"}