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JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M8 x 1
SKU:JBO-501008
The JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M8 x 1 is a precision tool designed to verify external thread diameters on fasteners, fittings, and components. It supports engin...
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Specifications at a glance
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| Thread Form | Metric |
| Size | M8 |
| Pitch | 1 |
| Gauge Type | Ring Gauge (NoGo) |
£66.02
Prices shown ex. VAT
5 days estimated lead time
— subject to availability
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Learn more about Klarna
Compatible certification
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Description
The JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M8 x 1 is a precision tool designed to verify external thread diameters on fasteners, fittings, and components. It supports engineers, machinists, quality inspectors, and hobbyists by delivering quick, clear indications of whether a thread dimension meets the required metric fine standard.
This NoGo gauge is crafted from hardened steel, delivering exceptional wear resistance and long service life in demanding work environments. Its robust construction helps maintain measurement stability, ensuring reliable results through repeated use in busy inspection routines.
- Rugged hardened steel construction: Built to withstand daily wear, providing durable, long-lasting performance and repeatable readings over many inspections.
- Metric fine thread compatibility (M8 x 1, left-hand, 6g): Specifically designed for external metric fine threads in left-hand orientation with 6g tolerance, delivering accurate checks for the targeted fasteners.
- Clear NoGo indication for fast QA: NoGo design offers an unmistakable pass/fail signal, helping you quickly identify non-conforming threads and reduce inspection time.
By using the JBO Thread Ring Gauge, you streamline inspection workflows, reduce rework, and ensure parts consistently meet thread standards. Its durable build and precise fit support reliable results across production, QA, and assembly tasks, giving you confidence in every measurement.
Part Numbers
- Protool Part Number
- JBO-501008
- Brand
- JBO
- Category
- Gauge
No downloads are attached to this product yet.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Ask our technical team about this tool
Full Range: JBO Thread Ring Gauges (NoGo) - Metric Fine
View full collection →You are viewing JBO-501008. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-500636 | M30 | 1.5 | £117.33 | 5 days | |
| JBO-501027 | M9 | 0.5 | £84.12 | 5 days | |
| JBO-500640 | M30 | 1.5 | £149.13 | 5 days | |
| JBO-500346 | M16 | 1 | £100.01 | 5 days | |
| JBO-503269 | M14 | 1 | £92.11 | 5 days | |
| JBO-506216 | M36 | 1 | £203.95 | 5 days | |
| JBO-500294 | M14 | 1 | £100.22 | 5 days | |
| JBO-500243 | M12 | 1 | £82.90 | 5 days | |
| JBO-501006 | M8 | 1 | £59.98 | 5 days | |
| JBO-500196 | M100 | 4 | £514.27 | 5 days | |
| JBO-503215 | M68 | 4 | £324.56 | 5 days | |
| JBO-501044 | M95 | 2 | £383.79 | 5 days | |
| JBO-500979 | M78 | 2 | £335.54 | 5 days | |
| JBO-500968 | M72 | 2 | £314.71 | 5 days | |
| JBO-500892 | M58 | 2 | £218.21 | 5 days | |
| JBO-500782 | M42 | 2 | £163.39 | 5 days | |
| JBO-500546 | M25 | 2 | £108.78 | 5 days | |
| JBO-520173 | M118 | 1.5 | £595.41 | 5 days | |
| JBO-500553 | M26 | 1.5 | £105.92 | 5 days | |
| JBO-500464 | M20 | 1.5 | £86.62 | 5 days | |
| JBO-500323 | M15 | 1.5 | £88.60 | 5 days | |
| JBO-500793 | M45 | 1 | £196.27 | 5 days | |
| JBO-500652 | M32 | 1 | £143.64 | 5 days | |
| JBO-500537 | M25 | 1 | £115.14 | 5 days | |
| JBO-500266 | M13 | 1 | £88.27 | 5 days | |
| JBO-500758 | M4.5 | 0.5 | £93.76 | 5 days | |
| JBO-505503 | M52 | 3 | £276.31 | 5 days | |
| JBO-503407 | M48 | 3 | £246.71 | 5 days | |
| JBO-505496 | M45 | 3 | £241.24 | 5 days | |
| JBO-505491 | M42 | 3 | £223.68 | 5 days | |
| JBO-505484 | M39 | 3 | £209.44 | 5 days | |
| JBO-500709 | M36 | 3 | £199.57 | 5 days | |
| JBO-506315 | M33 | 3 | £203.95 | 5 days | |
| JBO-506314 | M30 | 3 | £186.41 | 5 days | |
| JBO-505533 | M85 | 2 | £432.04 | 5 days | |
| JBO-543165 | M82 | 2 | £458.34 | 5 days | |
| JBO-505530 | M80 | 2 | £411.20 | 5 days | |
| JBO-540981 | M78 | 2 | £445.19 | 5 days | |
| JBO-505223 | M76 | 2 | £429.85 | 5 days | |
| JBO-505523 | M75 | 2 | £369.53 | 5 days | |
| JBO-543591 | M72 | 2 | £416.67 | 5 days | |
| JBO-505520 | M70 | 2 | £339.93 | 5 days | |
| JBO-505516 | M68 | 2 | £339.93 | 5 days | |
| JBO-506532 | M65 | 2 | £327.86 | 5 days | |
| JBO-505512 | M64 | 2 | £311.41 | 5 days | |
| JBO-506531 | M62 | 2 | £310.32 | 5 days | |
| JBO-500929 | M60 | 2 | £285.10 | 5 days | |
| JBO-500893 | M58 | 2 | £301.53 | 5 days | |
| JBO-500886 | M56 | 2 | £274.12 | 5 days | |
| JBO-505504 | M55 | 2 | £268.65 | 5 days | |
| JBO-500868 | M52 | 2 | £259.88 | 5 days | |
| JBO-500858 | M50 | 2 | £241.24 | 5 days | |
| JBO-500817 | M48 | 2 | £233.56 | 5 days | |
| JBO-500799 | M45 | 2 | £228.09 | 5 days | |
| JBO-504062 | M42 | 2 | £209.44 | 5 days | |
| JBO-500769 | M40 | 2 | £211.63 | 5 days | |
| JBO-500732 | M39 | 2 | £202.87 | 5 days | |
| JBO-505481 | M38 | 2 | £199.57 | 5 days | |
| JBO-500707 | M36 | 2 | £176.54 | 5 days | |
| JBO-500674 | M33 | 2 | £168.86 | 5 days | |
| JBO-503326 | M32 | 2 | £172.16 | 5 days | |
| JBO-500645 | M30 | 2 | £154.62 | 5 days | |
| JBO-506530 | M28 | 2 | £164.47 | 5 days | |
| JBO-500579 | M27 | 2 | £150.21 | 5 days | |
| JBO-505474 | M26 | 2 | £155.70 | 5 days | |
| JBO-505473 | M25 | 2 | £150.21 | 5 days | |
| JBO-500532 | M24 | 2 | £130.48 | 5 days | |
| JBO-504061 | M22 | 2 | £129.40 | 5 days | |
| JBO-500473 | M20 | 2 | £121.72 | 5 days | |
| JBO-505458 | M18 | 2 | £123.91 | 5 days | |
| JBO-506250 | M85 | 1.5 | £432.04 | 5 days | |
| JBO-506249 | M82 | 1.5 | £411.20 | 5 days | |
| JBO-506248 | M80 | 1.5 | £390.37 | 5 days | |
| JBO-506247 | M78 | 1.5 | £389.26 | 5 days | |
| JBO-506246 | M75 | 1.5 | £359.66 | 5 days | |
| JBO-506245 | M72 | 1.5 | £339.93 | 5 days | |
| JBO-506244 | M70 | 1.5 | £338.82 | 5 days | |
| JBO-506243 | M68 | 1.5 | £313.60 | 5 days | |
| JBO-505513 | M65 | 1.5 | £312.51 | 5 days | |
| JBO-505884 | M64 | 1.5 | £308.13 | 5 days | |
| JBO-506242 | M62 | 1.5 | £298.26 | 5 days | |
| JBO-503667 | M60 | 1.5 | £279.61 | 5 days | |
| JBO-503995 | M58 | 1.5 | £277.42 | 5 days | |
| JBO-500882 | M56 | 1.5 | £264.27 | 5 days | |
| JBO-503499 | M55 | 1.5 | £257.69 | 5 days | |
| JBO-503463 | M52 | 1.5 | £241.24 | 5 days | |
| JBO-500856 | M50 | 1.5 | £232.47 | 5 days | |
| JBO-500814 | M48 | 1.5 | £228.09 | 5 days | |
| JBO-500796 | M45 | 1.5 | £211.63 | 5 days | |
| JBO-500781 | M42 | 1.5 | £201.76 | 5 days | |
| JBO-500767 | M40 | 1.5 | £189.69 | 5 days | |
| JBO-500730 | M39 | 1.5 | £209.44 | 5 days | |
| JBO-500721 | M38 | 1.5 | £183.12 | 5 days | |
| JBO-500704 | M36 | 1.5 | £173.24 | 5 days | |
| JBO-500692 | M35 | 1.5 | £172.16 | 5 days | |
| JBO-500683 | M34 | 1.5 | £175.43 | 5 days | |
| JBO-500670 | M33 | 1.5 | £169.96 | 5 days | |
| JBO-500661 | M32 | 1.5 | £161.19 | 5 days | |
| JBO-500590 | M28 | 1.5 | £143.64 | 5 days | |
| JBO-500574 | M27 | 1.5 | £141.45 | 5 days | |
| JBO-500557 | M26 | 1.5 | £134.87 | 5 days | |
| JBO-503236 | M25 | 1.5 | £131.59 | 5 days | |
| JBO-500528 | M24 | 1.5 | £124.99 | 5 days | |
| JBO-500498 | M22 | 1.5 | £117.33 | 5 days | |
| JBO-500470 | M20 | 1.5 | £109.65 | 5 days | |
| JBO-500393 | M18 | 1.5 | £99.68 | 5 days | |
| JBO-503771 | M17 | 1.5 | £143.64 | 5 days | |
| JBO-500359 | M16 | 1.5 | £92.23 | 5 days | |
| JBO-503758 | M15 | 1.5 | £111.84 | 5 days | |
| JBO-500307 | M14 | 1.5 | £84.33 | 5 days | |
| JBO-500255 | M12 | 1.5 | £86.52 | 5 days | |
| JBO-503439 | M14 | 1.25 | £121.72 | 5 days | |
| JBO-500249 | M12 | 1.25 | £109.65 | 5 days | |
| JBO-500192 | M10 | 1.25 | £89.47 | 5 days | |
| JBO-506126 | M60 | 1 | £337.73 | 5 days | |
| JBO-506124 | M58 | 1 | £327.86 | 5 days | |
| JBO-506122 | M56 | 1 | £312.51 | 5 days | |
| JBO-506120 | M55 | 1 | £301.53 | 5 days | |
| JBO-506118 | M52 | 1 | £285.10 | 5 days | |
| JBO-505955 | M50 | 1 | £294.96 | 5 days | |
| JBO-506117 | M48 | 1 | £265.35 | 5 days | |
| JBO-503257 | M45 | 1 | £250.01 | 5 days | |
| JBO-502994 | M42 | 1 | £234.66 | 5 days | |
| JBO-503268 | M40 | 1 | £229.17 | 5 days | |
| JBO-505480 | M38 | 1 | £210.53 | 5 days | |
| JBO-500701 | M36 | 1 | £203.95 | 5 days | |
| JBO-505478 | M35 | 1 | £197.38 | 5 days | |
| JBO-500679 | M34 | 1 | £198.46 | 5 days | |
| JBO-502989 | M33 | 1 | £187.50 | 5 days | |
| JBO-500654 | M32 | 1 | £183.12 | 5 days | |
| JBO-500634 | M30 | 1 | £162.28 | 5 days | |
| JBO-500586 | M28 | 1 | £163.39 | 5 days | |
| JBO-500568 | M27 | 1 | £162.28 | 5 days | |
| JBO-500551 | M26 | 1 | £153.51 | 5 days | |
| JBO-503314 | M25 | 1 | £148.02 | 5 days | |
| JBO-500522 | M24 | 1 | £139.25 | 5 days | |
| JBO-506148 | M23 | 1 | £155.70 | 5 days | |
| JBO-500490 | M22 | 1 | £133.78 | 5 days | |
| JBO-506147 | M21 | 1 | £148.02 | 5 days | |
| JBO-500462 | M20 | 1 | £116.23 | 5 days | |
| JBO-500402 | M19 | 1 | £135.97 | 5 days | |
| JBO-500382 | M18 | 1 | £109.65 | 5 days | |
| JBO-500368 | M17 | 1 | £119.52 | 5 days | |
| JBO-500349 | M16 | 1 | £97.93 | 5 days | |
| JBO-500322 | M15 | 1 | £119.52 | 5 days | |
| JBO-500295 | M14 | 1 | £90.25 | 5 days | |
| JBO-500269 | M13 | 1 | £111.84 | 5 days | |
| JBO-500244 | M12 | 1 | £83.77 | 5 days | |
| JBO-502746 | M11 | 1 | £91.90 | 5 days | |
| JBO-500185 | M10 | 1 | £73.91 | 5 days | |
| JBO-501037 | M9 | 1 | £81.15 | 5 days | |
| JBO-501008 Viewing | M8 | 1 | £66.02 | 5 days | |
| JBO-506145 | M28 | 0.75 | £208.34 | 5 days | |
| JBO-506144 | M27 | 0.75 | £197.38 | 5 days | |
| JBO-506143 | M26 | 0.75 | £196.27 | 5 days | |
| JBO-500536 | M25 | 0.75 | £178.73 | 5 days | |
| JBO-503723 | M24 | 0.75 | £164.47 | 5 days | |
| JBO-503101 | M23 | 0.75 | £180.92 | 5 days | |
| JBO-506142 | M22 | 0.75 | £160.09 | 5 days | |
| JBO-503962 | M21 | 0.75 | £169.96 | 5 days | |
| JBO-502788 | M20 | 0.75 | £133.78 | 5 days | |
| JBO-505460 | M19 | 0.75 | £160.09 | 5 days | |
| JBO-503242 | M18 | 0.75 | £126.10 | 5 days | |
| JBO-506089 | M17 | 0.75 | £148.02 | 5 days | |
| JBO-500342 | M16 | 0.75 | £117.33 | 5 days | |
| JBO-505856 | M15 | 0.75 | £127.21 | 5 days | |
| JBO-500291 | M14 | 0.75 | £101.54 | 5 days | |
| JBO-506088 | M13 | 0.75 | £117.33 | 5 days | |
| JBO-500238 | M12 | 0.75 | £92.01 | 5 days | |
| JBO-500210 | M11 | 0.75 | £103.29 | 5 days | |
| JBO-500178 | M10 | 0.75 | £83.46 | 5 days | |
| JBO-502782 | M9 | 0.75 | £90.25 | 5 days | |
| JBO-501002 | M8 | 0.75 | £75.00 | 5 days | |
| JBO-500961 | M7 | 0.75 | £88.06 | 5 days | |
| JBO-500920 | M6 | 0.75 | £73.68 | 5 days | |
| JBO-503265 | M5 | 0.75 | £95.08 | 5 days | |
| JBO-503946 | M18 | 0.5 | £199.57 | 5 days | |
| JBO-506085 | M17 | 0.5 | £189.69 | 5 days | |
| JBO-503945 | M16 | 0.5 | £164.47 | 5 days | |
| JBO-506084 | M15 | 0.5 | £167.77 | 5 days | |
| JBO-506083 | M14 | 0.5 | £151.32 | 5 days | |
| JBO-506082 | M13 | 0.5 | £153.51 | 5 days | |
| JBO-503944 | M12 | 0.5 | £139.25 | 5 days | |
| JBO-506081 | M11 | 0.5 | £142.55 | 5 days | |
| JBO-500173 | M10 | 0.5 | £121.72 | 5 days | |
| JBO-503943 | M9 | 0.5 | £114.03 | 5 days | |
| JBO-500997 | M8 | 0.5 | £110.75 | 5 days | |
| JBO-503942 | M7 | 0.5 | £104.82 | 5 days | |
| JBO-500914 | M6 | 0.5 | £105.48 | 5 days | |
| JBO-500841 | M5 | 0.5 | £101.44 | 5 days | |
| JBO-503941 | M4.5 | 0.5 | £114.03 | 5 days | |
| JBO-500750 | M4 | 0.5 | £101.44 | 5 days | |
| JBO-503684 | M4 | 0.35 | £101.54 | 5 days | |
| JBO-503656 | M3.5 | 0.35 | £104.95 | 5 days | |
| JBO-500610 | M3 | 0.35 | £112.95 | 5 days | |
| JBO-506282 | M70 | 2 | £339.93 | 5 days | |
| JBO-506281 | M68 | 2 | £339.93 | 5 days | |
| JBO-506280 | M65 | 2 | £315.79 | 5 days | |
| JBO-500938 | M64 | 2 | £321.28 | 5 days | |
| JBO-506279 | M62 | 2 | £301.53 | 5 days | |
| JBO-505804 | M60 | 2 | £285.10 | 5 days | |
| JBO-506278 | M58 | 2 | £301.53 | 5 days | |
| JBO-500884 | M56 | 2 | £280.72 | 5 days | |
| JBO-500876 | M55 | 2 | £268.65 | 5 days | |
| JBO-500866 | M52 | 2 | £252.20 | 5 days | |
| JBO-506277 | M50 | 2 | £260.97 | 5 days | |
| JBO-504016 | M48 | 2 | £239.05 | 5 days | |
| JBO-505934 | M45 | 2 | £228.09 | 5 days | |
| JBO-500783 | M42 | 2 | £214.91 | 5 days | |
| JBO-506276 | M40 | 2 | £222.60 | 5 days | |
| JBO-504015 | M39 | 2 | £202.87 | 5 days | |
| JBO-506275 | M38 | 2 | £209.44 | 5 days | |
| JBO-504014 | M36 | 2 | £184.22 | 5 days | |
| JBO-500672 | M33 | 2 | £173.24 | 5 days | |
| JBO-506274 | M32 | 2 | £178.73 | 5 days | |
| JBO-500642 | M30 | 2 | £159.00 | 5 days | |
| JBO-506273 | M28 | 2 | £164.47 | 5 days | |
| JBO-500576 | M27 | 2 | £150.21 | 5 days | |
| JBO-506272 | M26 | 2 | £148.02 | 5 days | |
| JBO-506271 | M25 | 2 | £143.64 | 5 days | |
| JBO-502733 | M24 | 2 | £134.87 | 5 days | |
| JBO-500500 | M22 | 2 | £129.40 | 5 days | |
| JBO-504013 | M20 | 2 | £128.29 | 5 days | |
| JBO-504012 | M18 | 2 | £129.40 | 5 days | |
| JBO-506474 | M85 | 1.5 | £419.97 | 5 days | |
| JBO-506472 | M82 | 1.5 | £411.20 | 5 days | |
| JBO-506471 | M80 | 1.5 | £402.41 | 5 days | |
| JBO-506469 | M78 | 1.5 | £389.26 | 5 days | |
| JBO-505522 | M75 | 1.5 | £369.53 | 5 days | |
| JBO-503153 | M72 | 1.5 | £349.78 | 5 days | |
| JBO-505518 | M70 | 1.5 | £328.97 | 5 days | |
| JBO-506467 | M68 | 1.5 | £324.56 | 5 days | |
| JBO-504011 | M65 | 1.5 | £304.83 | 5 days | |
| JBO-506464 | M64 | 1.5 | £308.13 | 5 days | |
| JBO-504052 | M62 | 1.5 | £288.38 | 5 days | |
| JBO-504051 | M60 | 1.5 | £279.61 | 5 days | |
| JBO-505506 | M58 | 1.5 | £268.65 | 5 days | |
| JBO-500881 | M56 | 1.5 | £264.27 | 5 days | |
| JBO-506459 | M55 | 1.5 | £257.69 | 5 days | |
| JBO-505810 | M52 | 1.5 | £241.24 | 5 days | |
| JBO-503447 | M50 | 1.5 | £232.47 | 5 days | |
| JBO-500811 | M48 | 1.5 | £228.09 | 5 days | |
| JBO-505492 | M45 | 1.5 | £211.63 | 5 days | |
| JBO-503485 | M42 | 1.5 | £206.14 | 5 days | |
| JBO-503159 | M40 | 1.5 | £196.27 | 5 days | |
| JBO-505482 | M39 | 1.5 | £209.44 | 5 days | |
| JBO-500717 | M38 | 1.5 | £183.12 | 5 days | |
| JBO-505883 | M36 | 1.5 | £188.61 | 5 days | |
| JBO-500689 | M35 | 1.5 | £172.16 | 5 days | |
| JBO-506451 | M34 | 1.5 | £179.84 | 5 days |
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