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JBO Thread Ring Gauge (NoGo) - Metric Coarse - Right Hand - 6h - M3 x 0.5
| Thread Form | Metric |
| Size | M3 |
| Pitch | 0.5 |
| Gauge Type | Ring Gauge (NoGo) |
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Description
The JBO Thread Ring Gauge (NoGo) – Metric Coarse – Right Hand – 6h – M3 x 0.5 is a precision external thread gauge designed for quick, reliable inspection of metric coarse threads. It helps machinists, inspectors, and buyers confirm that parts will mate correctly with standard fasteners by delivering a clear pass/fail result against the M3 x 0.5 thread profile and 6H class.
Constructed from hardened steel for long-lasting performance, this NoGo gauge resists wear in busy workshops and maintains accurate dimensions through repeated use. Its compact ring form makes it easy to handle, store, and incorporate into daily quality checks, ensuring consistent results across batches.
- Durable Hardened-Steel Construction: Built to withstand daily use in demanding environments, resisting wear to maintain accurate measurements over time.
- Metric Coarse Thread Verification (M3 x 0.5, 6H): Precisely checks external threads against the 6H tolerance to provide decisive Go/NoGo results, reducing guesswork and rework.
- Right-Hand, Easy-to-Use Ring Design: Specifically aligned for right-hand coarse threads and designed for quick handling and fast, repeatable checks in busy QC workflows.
By incorporating this gauge into your inspection routine, you gain faster, more consistent thread checks, reduce scrap due to misfit fasteners, and improve overall workflow in QC-heavy environments. The hardened-steel construction and Go/NoGo design deliver dependable results day after day, helping engineers, buyers, and shop-floor technicians trust every threaded connection they specify, source, or assemble.
Part Numbers
- Protool Part Number
- JBO-500602
- 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 (NoGo) - Metric Coarse
View full collection →You are viewing JBO-500602. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-500131 | M1 | 0.25 | £135.97 | 5 days | |
| JBO-500135 | M1.1 | 0.25 | £176.54 | 5 days | |
| JBO-500136 | M1.2 | 0.25 | £128.29 | 5 days | |
| JBO-500139 | M1.4 | 0.3 | £114.03 | 5 days | |
| JBO-500146 | M1.6 | 0.35 | £99.02 | 5 days | |
| JBO-500151 | M1.7 | 0.35 | £120.61 | 5 days | |
| JBO-500154 | M1.8 | 0.35 | £88.27 | 5 days | |
| JBO-500404 | M2 | 0.4 | £83.67 | 5 days | |
| JBO-500419 | M2.2 | 0.45 | £93.31 | 5 days | |
| JBO-500425 | M2.3 | 0.4 | £154.62 | 5 days | |
| JBO-500429 | M2.5 | 0.45 | £67.67 | 5 days | |
| JBO-500441 | M2.6 | 0.45 | £83.11 | 5 days | |
| JBO-500596 | M3 | 0.5 | £52.09 | 5 days | |
| JBO-500611 | M3.5 | 0.6 | £54.82 | 5 days | |
| JBO-500734 | M4 | 0.7 | £47.70 | 5 days | |
| JBO-500752 | M4.5 | 0.75 | £74.13 | 5 days | |
| JBO-500822 | M5 | 0.8 | £47.70 | 5 days | |
| JBO-500896 | M6 | 1 | £47.70 | 5 days | |
| JBO-500948 | M7 | 1 | £54.51 | 5 days | |
| JBO-500980 | M8 | 1.25 | £48.81 | 5 days | |
| JBO-501024 | M9 | 1.25 | £65.13 | 5 days | |
| JBO-500158 | M10 | 1.5 | £54.51 | 5 days | |
| JBO-500201 | M11 | 1.5 | £76.53 | 5 days | |
| JBO-500218 | M12 | 1.75 | £60.74 | 5 days | |
| JBO-500277 | M14 | 2 | £64.91 | 5 days | |
| JBO-500327 | M16 | 2 | £74.24 | 5 days | |
| JBO-500370 | M18 | 2.5 | £87.84 | 5 days | |
| JBO-500447 | M20 | 2.5 | £94.96 | 5 days | |
| JBO-500479 | M22 | 2.5 | £106.80 | 5 days | |
| JBO-500508 | M24 | 3 | £111.84 | 5 days | |
| JBO-500559 | M27 | 3 | £128.29 | 5 days | |
| JBO-500623 | M30 | 3.5 | £135.97 | 5 days | |
| JBO-500664 | M33 | 3.5 | £154.62 | 5 days | |
| JBO-500696 | M36 | 4 | £163.39 | 5 days | |
| JBO-500723 | M39 | 4 | £179.84 | 5 days | |
| JBO-500775 | M42 | 4.5 | £186.41 | 5 days | |
| JBO-500791 | M45 | 4.5 | £198.46 | 5 days | |
| JBO-500807 | M48 | 5 | £209.44 | 5 days | |
| JBO-500860 | M52 | 5 | £250.01 | 5 days | |
| JBO-500877 | M56 | 5.5 | £239.05 | 5 days | |
| JBO-500923 | M60 | 5.5 | £321.28 | 5 days | |
| JBO-500935 | M64 | 6 | £339.93 | 5 days | |
| JBO-500944 | M68 | 6 | £362.95 | 5 days | |
| JBO-500148 | M1.6 | 0.35 | £117.33 | 5 days | |
| JBO-500409 | M2 | 0.4 | £95.95 | 5 days | |
| JBO-500420 | M2.2 | 0.45 | £107.24 | 5 days | |
| JBO-500432 | M2.5 | 0.45 | £76.44 | 5 days | |
| JBO-500600 | M3 | 0.5 | £58.90 | 5 days | |
| JBO-500613 | M3.5 | 0.6 | £59.98 | 5 days | |
| JBO-500736 | M4 | 0.7 | £53.62 | 5 days | |
| JBO-500826 | M5 | 0.8 | £53.62 | 5 days | |
| JBO-500900 | M6 | 1 | £53.62 | 5 days | |
| JBO-500949 | M7 | 1 | £62.72 | 5 days | |
| JBO-500984 | M8 | 1.25 | £54.94 | 5 days | |
| JBO-502957 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-500162 | M10 | 1.5 | £63.50 | 5 days | |
| JBO-500202 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-500221 | M12 | 1.75 | £70.29 | 5 days | |
| JBO-500279 | M14 | 2 | £77.97 | 5 days | |
| JBO-500331 | M16 | 2 | £83.67 | 5 days | |
| JBO-500371 | M18 | 2.5 | £97.16 | 5 days | |
| JBO-500452 | M20 | 2.5 | £107.15 | 5 days | |
| JBO-500480 | M22 | 2.5 | £129.40 | 5 days | |
| JBO-500511 | M24 | 3 | £137.06 | 5 days | |
| JBO-500560 | M27 | 3 | £154.62 | 5 days | |
| JBO-500625 | M30 | 3.5 | £168.86 | 5 days | |
| JBO-505324 | M33 | 3.5 | £187.50 | 5 days | |
| JBO-540008 | M36 | 4 | £199.57 | 5 days | |
| JBO-540862 | M39 | 4 | £216.02 | 5 days | |
| JBO-500149 | M1.6 | 0.35 | £124.99 | 5 days | |
| JBO-500156 | M1.8 | 0.35 | £124.99 | 5 days | |
| JBO-500410 | M2 | 0.4 | £105.26 | 5 days | |
| JBO-506051 | M2.2 | 0.45 | £117.33 | 5 days | |
| JBO-500433 | M2.5 | 0.45 | £82.80 | 5 days | |
| JBO-500602 Viewing | M3 | 0.5 | £63.83 | 5 days | |
| JBO-500614 | M3.5 | 0.6 | £66.02 | 5 days | |
| JBO-500737 | M4 | 0.7 | £58.90 | 5 days | |
| JBO-500828 | M5 | 0.8 | £58.90 | 5 days | |
| JBO-500901 | M6 | 1 | £58.90 | 5 days | |
| JBO-500950 | M7 | 1 | £68.54 | 5 days | |
| JBO-500985 | M8 | 1.25 | £60.43 | 5 days | |
| JBO-504251 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-500164 | M10 | 1.5 | £69.51 | 5 days | |
| JBO-500203 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-500223 | M12 | 1.75 | £77.19 | 5 days | |
| JBO-500280 | M14 | 2 | £82.45 | 5 days | |
| JBO-500333 | M16 | 2 | £91.67 | 5 days | |
| JBO-500372 | M18 | 2.5 | £106.25 | 5 days | |
| JBO-500453 | M20 | 2.5 | £117.33 | 5 days | |
| JBO-500481 | M22 | 2.5 | £129.40 | 5 days | |
| JBO-500512 | M24 | 3 | £137.06 | 5 days | |
| JBO-500561 | M27 | 3 | £154.62 | 5 days | |
| JBO-500626 | M30 | 3.5 | £168.86 | 5 days | |
| JBO-503925 | M33 | 3.5 | £183.12 | 5 days | |
| JBO-500697 | M36 | 4 | £199.57 | 5 days | |
| JBO-506052 | M39 | 4 | £216.02 | 5 days | |
| JBO-506061 | M42 | 4.5 | £285.10 | 5 days | |
| JBO-506062 | M45 | 4.5 | £301.53 | 5 days | |
| JBO-505776 | M48 | 5 | £321.28 | 5 days | |
| JBO-506063 | M52 | 5 | £343.21 | 5 days | |
| JBO-500132 | M1 | 0.25 | £509.89 | 5 days | |
| JBO-506046 | M1.1 | 0.25 | £649.14 | 5 days | |
| JBO-500137 | M1.2 | 0.25 | £467.11 | 5 days | |
| JBO-500140 | M1.4 | 0.3 | £144.74 | 5 days | |
| JBO-500147 | M1.6 | 0.35 | £124.99 | 5 days | |
| JBO-500155 | M1.8 | 0.35 | £111.84 | 5 days | |
| JBO-500407 | M2 | 0.4 | £105.26 | 5 days | |
| JBO-503923 | M2.2 | 0.45 | £117.33 | 5 days | |
| JBO-500430 | M2.5 | 0.45 | £82.80 | 5 days | |
| JBO-500598 | M3 | 0.5 | £63.83 | 5 days | |
| JBO-500612 | M3.5 | 0.6 | £66.02 | 5 days | |
| JBO-500735 | M4 | 0.7 | £58.90 | 5 days | |
| JBO-500824 | M5 | 0.8 | £58.90 | 5 days | |
| JBO-500899 | M6 | 1 | £58.90 | 5 days | |
| JBO-502914 | M7 | 1 | £68.54 | 5 days | |
| JBO-500983 | M8 | 1.25 | £60.43 | 5 days | |
| JBO-501025 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-500161 | M10 | 1.5 | £69.51 | 5 days | |
| JBO-503125 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-500220 | M12 | 1.75 | £77.19 | 5 days | |
| JBO-503920 | M14 | 2 | £82.45 | 5 days | |
| JBO-500330 | M16 | 2 | £91.67 | 5 days | |
| JBO-503921 | M18 | 2.5 | £106.25 | 5 days | |
| JBO-500450 | M20 | 2.5 | £117.33 | 5 days | |
| JBO-503922 | M22 | 2.5 | £131.59 | 5 days | |
| JBO-500510 | M24 | 3 | £137.06 | 5 days | |
| JBO-506047 | M27 | 3 | £144.74 | 5 days | |
| JBO-500624 | M30 | 3.5 | £172.16 | 5 days | |
| JBO-506031 | M1.4 | 0.3 | £163.39 | 5 days | |
| JBO-505436 | M1.6 | 0.35 | £141.45 | 5 days | |
| JBO-502739 | M2 | 0.4 | £127.21 | 5 days | |
| JBO-500434 | M2.5 | 0.45 | £94.73 | 5 days | |
| JBO-500604 | M3 | 0.5 | £63.83 | 5 days | |
| JBO-500615 | M3.5 | 0.6 | £66.02 | 5 days | |
| JBO-500739 | M4 | 0.7 | £58.90 | 5 days | |
| JBO-500831 | M5 | 0.8 | £58.90 | 5 days | |
| JBO-500904 | M6 | 1 | £58.90 | 5 days | |
| JBO-500951 | M7 | 1 | £68.54 | 5 days | |
| JBO-500989 | M8 | 1.25 | £60.43 | 5 days | |
| JBO-502801 | M9 | 1.25 | £82.24 | 5 days | |
| JBO-500167 | M10 | 1.5 | £69.51 | 5 days | |
| JBO-503904 | M11 | 1.5 | £96.40 | 5 days | |
| JBO-500227 | M12 | 1.75 | £77.19 | 5 days | |
| JBO-500281 | M14 | 2 | £94.09 | 5 days | |
| JBO-500334 | M16 | 2 | £91.67 | 5 days | |
| JBO-500373 | M18 | 2.5 | £106.25 | 5 days | |
| JBO-500454 | M20 | 2.5 | £117.33 | 5 days | |
| JBO-503353 | M22 | 2.5 | £129.40 | 5 days | |
| JBO-500514 | M24 | 3 | £137.06 | 5 days | |
| JBO-500562 | M27 | 3 | £154.62 | 5 days | |
| JBO-500627 | M30 | 3.5 | £168.86 | 5 days | |
| JBO-500665 | M33 | 3.5 | £183.12 | 5 days | |
| JBO-500698 | M36 | 4 | £199.57 | 5 days | |
| JBO-502988 | M39 | 4 | £230.28 | 5 days | |
| JBO-503933 | M42 | 4.5 | £250.01 | 5 days | |
| JBO-505825 | M45 | 4.5 | £264.27 | 5 days | |
| JBO-503726 | M48 | 5 | £280.72 | 5 days | |
| JBO-506064 | M52 | 5 | £301.53 | 5 days | |
| JBO-503918 | M4 | 0.7 | £69.74 | 5 days | |
| JBO-502955 | M5 | 0.8 | £69.74 | 5 days | |
| JBO-500905 | M6 | 1 | £69.74 | 5 days | |
| JBO-500990 | M8 | 1.25 | £71.39 | 5 days | |
| JBO-503094 | M10 | 1.5 | £82.35 | 5 days | |
| JBO-503760 | M12 | 1.75 | £91.57 | 5 days | |
| JBO-500335 | M16 | 2 | £108.68 | 5 days | |
| JBO-503919 | M20 | 2.5 | £137.06 | 5 days |
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