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JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6g - M5 x 0.8
| Thread Form | Metric |
| Size | M5 |
| Pitch | 0.8 |
| Gauge Type | Ring Gauge (GO) |
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Description
The JBO Thread Ring Gauge (GO) - Metric Coarse - Right Hand - 6g - M5 x 0.8 is a precision inspection tool designed to verify external metric coarse threads. It’s ideal for engineers, machinists, quality teams, and maintenance staff who need quick, reliable confirmation that threaded components meet the intended size and fit.
Crafted from hardened steel for durability, this GO gauge resists wear and maintains tight tolerances through repeated use. Its straightforward GO design supports fast, reliable go/no-go checks in standard QA workflows across manufacturing, assembly lines, and service environments.
- Exact M5 x 0.8 coarse-thread sizing: Provides accurate GO measurement for external M5 x 0.8 coarse threads, helping ensure parts meet spec and reduce rework.
- Hardened steel construction: Delivers long tool life and wear resistance in busy shop environments, maintaining accuracy over many cycles.
- Go gauge for fast pass/fail checks: Enables quick, confident inspection decisions on the shop floor, speeding quality checks and reducing downtime.
Using this GO gauge ensures quick, repeatable verification of M5 x 0.8 coarse-thread connections, helping you prevent misfits, cut rework, and keep production on schedule. The hardened steel construction stands up to daily use, preserving accuracy across shifts, while the simple GO-style check makes inspections faster and more confident for operators, inspectors, and quality teams alike.
Part Numbers
- Protool Part Number
- JBO-502138
- 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-502138. 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 Viewing | 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 | 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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