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JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6g - M2 x 0.4
| Thread Form | Metric |
| Size | M2 |
| Pitch | 0.4 |
| Gauge Type | Ring Gauge (GO) |
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Description
The JBO Thread Ring Gauge GO - Metric Coarse - Left Hand - 6g - M2 x 0.4 is a precision inspection tool designed to quickly verify external thread sizes on metric coarse fasteners. It’s ideal for quality control teams, machine shops, assembly lines, service technicians, and hobbyists who need reliable, pass/fail checks to ensure parts meet exact threading specifications.
Crafted from hardened steel for exceptional durability, this LH GO gauge resists wear in busy environments and maintains accurate measurements over many uses. The 6g tolerance class and the M2 x 0.4 coarse thread specification ensure consistent results that align with industry standards, making it a dependable choice for routine threaded-component checks.
- Hardened steel construction: Delivers long-lasting durability and wear resistance for repeatable, trustworthy measurements in demanding shop environments.
- Metric coarse LH GO design (M2 x 0.4, 6g): Precisely sized for left-hand M2 x 0.4 threads, enabling fast, reliable pass/fail checks that conform to standard Thread GO requirements.
- Ergonomic, easy-to-use design: Knurled exterior and smooth bore allow secure grip and quick alignment, even in tight spaces or with gloves on.
This gauge helps streamline inspection workflows by providing clear, repeatable results that reduce downtime and prevent misfits in final assemblies. With trustworthy construction and precise dimensions, you can rely on consistent performance every time you verify metric coarse threads.
Part Numbers
- Protool Part Number
- JBO-501707
- Brand
- JBO
- Category
- Gauge
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.
Full Range: JBO Thread Ring Gauges (GO) - Metric Coarse
View full collection →You are viewing JBO-501707. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-501426 | M1 | 0.25 | £135.97 | 5 days | |
| JBO-501430 | M1.1 | 0.25 | £176.54 | 5 days | |
| JBO-501431 | M1.2 | 0.25 | £128.29 | 5 days | |
| JBO-501434 | M1.4 | 0.3 | £114.03 | 5 days | |
| JBO-501441 | M1.6 | 0.35 | £99.02 | 5 days | |
| JBO-501446 | M1.7 | 0.35 | £120.61 | 5 days | |
| JBO-501448 | M1.8 | 0.35 | £88.27 | 5 days | |
| JBO-501700 | M2 | 0.4 | £83.67 | 5 days | |
| JBO-501714 | M2.2 | 0.45 | £93.31 | 5 days | |
| JBO-501720 | M2.3 | 0.4 | £154.62 | 5 days | |
| JBO-501724 | M2.5 | 0.45 | £67.67 | 5 days | |
| JBO-501739 | M2.6 | 0.45 | £83.11 | 5 days | |
| JBO-501903 | M3 | 0.5 | £52.09 | 5 days | |
| JBO-501919 | M3.5 | 0.6 | £54.82 | 5 days | |
| JBO-502047 | M4 | 0.7 | £47.70 | 5 days | |
| JBO-502069 | M4.5 | 0.75 | £74.13 | 5 days | |
| JBO-502138 | M5 | 0.8 | £47.70 | 5 days | |
| JBO-502214 | M6 | 1 | £47.70 | 5 days | |
| JBO-502271 | M7 | 1 | £54.51 | 5 days | |
| JBO-502301 | M8 | 1.25 | £48.81 | 5 days | |
| JBO-502347 | M9 | 1.25 | £65.13 | 5 days | |
| JBO-501452 | M10 | 1.5 | £54.51 | 5 days | |
| JBO-501492 | M11 | 1.5 | £76.53 | 5 days | |
| JBO-501512 | M12 | 1.75 | £60.74 | 5 days | |
| JBO-501572 | M14 | 2 | £64.91 | 5 days | |
| JBO-501623 | M16 | 2 | £74.24 | 5 days | |
| JBO-501663 | M18 | 2.5 | £87.84 | 5 days | |
| JBO-501748 | M20 | 2.5 | £94.96 | 5 days | |
| JBO-501782 | M22 | 2.5 | £106.80 | 5 days | |
| JBO-501815 | M24 | 3 | £111.84 | 5 days | |
| JBO-501868 | M27 | 3 | £128.29 | 5 days | |
| JBO-501929 | M30 | 3.5 | £135.97 | 5 days | |
| JBO-501975 | M33 | 3.5 | £154.62 | 5 days | |
| JBO-502011 | M36 | 4 | £163.39 | 5 days | |
| JBO-502039 | M39 | 4 | £179.84 | 5 days | |
| JBO-502093 | M42 | 4.5 | £186.41 | 5 days | |
| JBO-502108 | M45 | 4.5 | £198.46 | 5 days | |
| JBO-502125 | M48 | 5 | £209.44 | 5 days | |
| JBO-502176 | M52 | 5 | £250.01 | 5 days | |
| JBO-502199 | M56 | 5.5 | £239.05 | 5 days | |
| JBO-502244 | M60 | 5.5 | £321.28 | 5 days | |
| JBO-502257 | M64 | 6 | £339.93 | 5 days | |
| JBO-502267 | M68 | 6 | £362.95 | 5 days | |
| JBO-501443 | M1.6 | 0.35 | £117.33 | 5 days | |
| JBO-501704 | M2 | 0.4 | £95.95 | 5 days | |
| JBO-501715 | M2.2 | 0.45 | £107.24 | 5 days | |
| JBO-501728 | M2.5 | 0.45 | £76.44 | 5 days | |
| JBO-501906 | M3 | 0.5 | £58.90 | 5 days | |
| JBO-501921 | M3.5 | 0.6 | £59.98 | 5 days | |
| JBO-502051 | M4 | 0.7 | £53.62 | 5 days | |
| JBO-502143 | M5 | 0.8 | £53.62 | 5 days | |
| JBO-502218 | M6 | 1 | £53.62 | 5 days | |
| JBO-502272 | M7 | 1 | £62.72 | 5 days | |
| JBO-502305 | M8 | 1.25 | £54.94 | 5 days | |
| JBO-502956 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-501456 | M10 | 1.5 | £63.50 | 5 days | |
| JBO-501494 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-501517 | M12 | 1.75 | £70.29 | 5 days | |
| JBO-501574 | M14 | 2 | £77.97 | 5 days | |
| JBO-501626 | M16 | 2 | £83.67 | 5 days | |
| JBO-501664 | M18 | 2.5 | £97.16 | 5 days | |
| JBO-501751 | M20 | 2.5 | £107.15 | 5 days | |
| JBO-501783 | M22 | 2.5 | £129.40 | 5 days | |
| JBO-501817 | M24 | 3 | £137.06 | 5 days | |
| JBO-501869 | M27 | 3 | £154.62 | 5 days | |
| JBO-501931 | M30 | 3.5 | £168.86 | 5 days | |
| JBO-504575 | M33 | 3.5 | £187.50 | 5 days | |
| JBO-503038 | M36 | 4 | £199.57 | 5 days | |
| JBO-518837 | M39 | 4 | £216.02 | 5 days | |
| JBO-501444 | M1.6 | 0.35 | £124.99 | 5 days | |
| JBO-501450 | M1.8 | 0.35 | £124.99 | 5 days | |
| JBO-501705 | M2 | 0.4 | £105.26 | 5 days | |
| JBO-506050 | M2.2 | 0.45 | £117.33 | 5 days | |
| JBO-501908 | M3 | 0.5 | £63.83 | 5 days | |
| JBO-501923 | M3.5 | 0.6 | £66.02 | 5 days | |
| JBO-502052 | M4 | 0.7 | £58.90 | 5 days | |
| JBO-502145 | M5 | 0.8 | £58.90 | 5 days | |
| JBO-502220 | M6 | 1 | £58.90 | 5 days | |
| JBO-502273 | M7 | 1 | £68.54 | 5 days | |
| JBO-502306 | M8 | 1.25 | £60.43 | 5 days | |
| JBO-502349 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-501457 | M10 | 1.5 | £69.51 | 5 days | |
| JBO-501495 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-501518 | M12 | 1.75 | £77.19 | 5 days | |
| JBO-501575 | M14 | 2 | £82.45 | 5 days | |
| JBO-501627 | M16 | 2 | £91.67 | 5 days | |
| JBO-501665 | M18 | 2.5 | £106.25 | 5 days | |
| JBO-501752 | M20 | 2.5 | £117.33 | 5 days | |
| JBO-501784 | M22 | 2.5 | £129.40 | 5 days | |
| JBO-501818 | M24 | 3 | £137.06 | 5 days | |
| JBO-501870 | M27 | 3 | £154.62 | 5 days | |
| JBO-501932 | M30 | 3.5 | £168.86 | 5 days | |
| JBO-503924 | M33 | 3.5 | £183.12 | 5 days | |
| JBO-502012 | M36 | 4 | £199.57 | 5 days | |
| JBO-503893 | M39 | 4 | £216.02 | 5 days | |
| JBO-503932 | M42 | 4.5 | £285.10 | 5 days | |
| JBO-506059 | M45 | 4.5 | £301.53 | 5 days | |
| JBO-505775 | M48 | 5 | £321.28 | 5 days | |
| JBO-506060 | M52 | 5 | £343.21 | 5 days | |
| JBO-501427 | M1 | 0.25 | £509.89 | 5 days | |
| JBO-506034 | M1.1 | 0.25 | £649.14 | 5 days | |
| JBO-501432 | M1.2 | 0.25 | £467.11 | 5 days | |
| JBO-501435 | M1.4 | 0.3 | £144.74 | 5 days | |
| JBO-501442 | M1.6 | 0.35 | £124.99 | 5 days | |
| JBO-501449 | M1.8 | 0.35 | £111.84 | 5 days | |
| JBO-501702 | M2 | 0.4 | £105.26 | 5 days | |
| JBO-503906 | M2.2 | 0.45 | £117.33 | 5 days | |
| JBO-501729 | M2.5 | 0.45 | £82.80 | 5 days | |
| JBO-501905 | M3 | 0.5 | £63.83 | 5 days | |
| JBO-501920 | M3.5 | 0.6 | £66.02 | 5 days | |
| JBO-502049 | M4 | 0.7 | £58.90 | 5 days | |
| JBO-502141 | M5 | 0.8 | £58.90 | 5 days | |
| JBO-502217 | M6 | 1 | £58.90 | 5 days | |
| JBO-502915 | M7 | 1 | £68.54 | 5 days | |
| JBO-502304 | M8 | 1.25 | £60.43 | 5 days | |
| JBO-502348 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-501455 | M10 | 1.5 | £69.51 | 5 days | |
| JBO-501493 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-501515 | M12 | 1.75 | £77.19 | 5 days | |
| JBO-503905 | M14 | 2 | £82.45 | 5 days | |
| JBO-501625 | M16 | 2 | £91.67 | 5 days | |
| JBO-503907 | M18 | 2.5 | £106.25 | 5 days | |
| JBO-501750 | M20 | 2.5 | £117.33 | 5 days | |
| JBO-503879 | M22 | 2.5 | £131.59 | 5 days | |
| JBO-503588 | M24 | 3 | £137.06 | 5 days | |
| JBO-503908 | M27 | 3 | £144.74 | 5 days | |
| JBO-501930 | M30 | 3.5 | £172.16 | 5 days | |
| JBO-506038 | M1.4 | 0.3 | £163.39 | 5 days | |
| JBO-505880 | M1.6 | 0.35 | £141.45 | 5 days | |
| JBO-501707 Viewing | M2 | 0.4 | £127.21 | 5 days | |
| JBO-501730 | M2.5 | 0.45 | £94.73 | 5 days | |
| JBO-501910 | M3 | 0.5 | £63.83 | 5 days | |
| JBO-501924 | M3.5 | 0.6 | £66.02 | 5 days | |
| JBO-502053 | M4 | 0.7 | £58.90 | 5 days | |
| JBO-502147 | M5 | 0.8 | £58.90 | 5 days | |
| JBO-502222 | M6 | 1 | £58.90 | 5 days | |
| JBO-502274 | M7 | 1 | £68.54 | 5 days | |
| JBO-502308 | M8 | 1.25 | £60.43 | 5 days | |
| JBO-502800 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-501459 | M10 | 1.5 | £69.51 | 5 days | |
| JBO-503911 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-501520 | M12 | 1.75 | £77.19 | 5 days | |
| JBO-501576 | M14 | 2 | £94.09 | 5 days | |
| JBO-501628 | M16 | 2 | £91.67 | 5 days | |
| JBO-501666 | M18 | 2.5 | £106.25 | 5 days | |
| JBO-501753 | M20 | 2.5 | £117.33 | 5 days | |
| JBO-501786 | M22 | 2.5 | £129.40 | 5 days | |
| JBO-501819 | M24 | 3 | £137.06 | 5 days | |
| JBO-501871 | M27 | 3 | £154.62 | 5 days | |
| JBO-501933 | M30 | 3.5 | £168.86 | 5 days | |
| JBO-501976 | M33 | 3.5 | £183.12 | 5 days | |
| JBO-502013 | M36 | 4 | £199.57 | 5 days | |
| JBO-502987 | M39 | 4 | £230.28 | 5 days | |
| JBO-503533 | M42 | 4.5 | £250.01 | 5 days | |
| JBO-503327 | M45 | 4.5 | £264.27 | 5 days | |
| JBO-503534 | M48 | 5 | £280.72 | 5 days | |
| JBO-503535 | M52 | 5 | £301.53 | 5 days | |
| JBO-503914 | M4 | 0.7 | £69.74 | 5 days | |
| JBO-502954 | M5 | 0.8 | £69.74 | 5 days | |
| JBO-502224 | M6 | 1 | £69.74 | 5 days | |
| JBO-502309 | M8 | 1.25 | £71.39 | 5 days | |
| JBO-503093 | M10 | 1.5 | £82.35 | 5 days | |
| JBO-503759 | M12 | 1.75 | £91.57 | 5 days | |
| JBO-503643 | M16 | 2 | £108.68 | 5 days | |
| JBO-503915 | M20 | 2.5 | £137.06 | 5 days |
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