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JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M12 x 1.25
SKU:JBO-502949
The JBO Thread Ring Gauge (NoGo) – Metric Fine is a precision tool designed to check external threads on M12 x 1.25, right-hand fasteners and components. Ideal for engineers, quality inspectors, ...
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Specification
| Thread Form | Metric |
| Size | M12 |
| Pitch | 1.25 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Right Hand |
| Tolerance | 4h |
£109.65
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
The JBO Thread Ring Gauge (NoGo) – Metric Fine is a precision tool designed to check external threads on M12 x 1.25, right-hand fasteners and components. Ideal for engineers, quality inspectors, machinists, and shop floor technicians, it helps verify that threaded parts meet the 4h tolerance without guesswork.
The gauge is crafted from hardened steel, delivering durable, long-lasting performance in busy workshops. Its exact geometry and smooth finish support consistent, reliable inspections across shifts and teams.
- Exact metric NoGo gauge for M12 x 1.25 right-hand threads: Quickly verify external thread diameters to the 4h tolerance, preventing undersized parts from passing and reducing rework.
- Hardened steel construction for long-lasting accuracy: Built to withstand daily use, resist wear and corrosion, and retain precise measurements over time.
- Clear, quick pass/fail verification: The NoGo gauge design provides immediate nonconformity indication, speeding inspections and keeping production moving.
Using the JBO NoGo Thread Ring Gauge simplifies and speeds external-thread inspections. It helps you quickly confirm M12 x 1.25 right-hand threads meet the 4h tolerance, cutting rework and downtime. The durable hardened steel body keeps measurements stable over thousands of uses, so you can trust results across shifts and operators. A clear pass/fail indication supports consistent quality decisions and smoother workflow from receiving to final assembly.
| Thread Form | Metric |
| Size | M12 |
| Pitch | 1.25 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Right Hand |
| Tolerance | 4h |
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.
★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
★★★★★
first place we look
honest about stock and prices are competitive.
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Full Range: JBO Thread Ring Gauges (NoGo) - Metric Fine
View full collection →You are viewing JBO-502949. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-503693 | M1 | 0.2 | £479.18 | 5 days | |
| JBO-503705 | M1.2 | 0.2 | £467.11 | 5 days | |
| JBO-500143 | M1.4 | 0.2 | £456.15 | 5 days | |
| JBO-500150 | M1.6 | 0.2 | £439.70 | 5 days | |
| JBO-503213 | M1.8 | 0.2 | £418.87 | 5 days | |
| JBO-500413 | M2 | 0.2 | £412.29 | 5 days | |
| JBO-500436 | M2.5 | 0.2 | £403.52 | 5 days | |
| JBO-500416 | M2 | 0.25 | £312.51 | 5 days | |
| JBO-500423 | M2.2 | 0.25 | £288.38 | 5 days | |
| JBO-500437 | M2.5 | 0.25 | £303.75 | 5 days | |
| JBO-503545 | M3 | 0.25 | £297.15 | 5 days | |
| JBO-504324 | M3.5 | 0.25 | £297.15 | 5 days | |
| JBO-503710 | M4 | 0.25 | £285.10 | 5 days | |
| JBO-503841 | M5 | 0.25 | £281.80 | 5 days | |
| JBO-503492 | M6 | 0.25 | £281.80 | 5 days | |
| JBO-500438 | M2.5 | 0.3 | £109.11 | 5 days | |
| JBO-500607 | M3 | 0.3 | £86.74 | 5 days | |
| JBO-500617 | M3.5 | 0.3 | £85.09 | 5 days | |
| JBO-500742 | M4 | 0.3 | £78.30 | 5 days | |
| JBO-500757 | M4.5 | 0.3 | £120.61 | 5 days | |
| JBO-500834 | M5 | 0.3 | £124.99 | 5 days | |
| JBO-500907 | M6 | 0.3 | £124.99 | 5 days | |
| JBO-500952 | M7 | 0.3 | £156.81 | 5 days | |
| JBO-500992 | M8 | 0.3 | £156.81 | 5 days | |
| JBO-501026 | M9 | 0.3 | £161.19 | 5 days | |
| JBO-500169 | M10 | 0.3 | £161.19 | 5 days | |
| JBO-500620 | M3.5 | 0.5 | £114.03 | 5 days | |
| JBO-500745 | M4 | 0.5 | £71.28 | 5 days | |
| JBO-500758 | M4.5 | 0.5 | £93.76 | 5 days | |
| JBO-500836 | M5 | 0.5 | £71.28 | 5 days | |
| JBO-500849 | M5.5 | 0.5 | £203.95 | 5 days | |
| JBO-500910 | M6 | 0.5 | £72.05 | 5 days | |
| JBO-500922 | M6.5 | 0.5 | £203.95 | 5 days | |
| JBO-500953 | M7 | 0.5 | £75.33 | 5 days | |
| JBO-502740 | M7.5 | 0.5 | £200.65 | 5 days | |
| JBO-500993 | M8 | 0.5 | £77.31 | 5 days | |
| JBO-501011 | M8.5 | 0.5 | £200.65 | 5 days | |
| JBO-501027 | M9 | 0.5 | £84.12 | 5 days | |
| JBO-500170 | M10 | 0.5 | £86.62 | 5 days | |
| JBO-500204 | M11 | 0.5 | £105.05 | 5 days | |
| JBO-500231 | M12 | 0.5 | £99.13 | 5 days | |
| JBO-500262 | M13 | 0.5 | £127.21 | 5 days | |
| JBO-500284 | M14 | 0.5 | £120.61 | 5 days | |
| JBO-500313 | M15 | 0.5 | £129.40 | 5 days | |
| JBO-500336 | M16 | 0.5 | £132.68 | 5 days | |
| JBO-500361 | M17 | 0.5 | £151.32 | 5 days | |
| JBO-500374 | M18 | 0.5 | £150.21 | 5 days | |
| JBO-500397 | M19 | 0.5 | £172.16 | 5 days | |
| JBO-500455 | M20 | 0.5 | £162.28 | 5 days | |
| JBO-502755 | M21 | 0.5 | £281.80 | 5 days | |
| JBO-500482 | M22 | 0.5 | £292.77 | 5 days | |
| JBO-500502 | M23 | 0.5 | £292.77 | 5 days | |
| JBO-500515 | M24 | 0.5 | £292.77 | 5 days | |
| JBO-500534 | M25 | 0.5 | £304.83 | 5 days | |
| JBO-502743 | M26 | 0.5 | £328.97 | 5 days | |
| JBO-500563 | M27 | 0.5 | £328.97 | 5 days | |
| JBO-500580 | M28 | 0.5 | £328.97 | 5 days | |
| JBO-502976 | M29 | 0.5 | £328.97 | 5 days | |
| JBO-500628 | M30 | 0.5 | £328.97 | 5 days | |
| JBO-503260 | M31 | 0.5 | £361.85 | 5 days | |
| JBO-502943 | M32 | 0.5 | £361.85 | 5 days | |
| JBO-502980 | M33 | 0.5 | £368.43 | 5 days | |
| JBO-500676 | M34 | 0.5 | £368.43 | 5 days | |
| JBO-500685 | M35 | 0.5 | £376.11 | 5 days | |
| JBO-503263 | M36 | 0.5 | £381.60 | 5 days | |
| JBO-503630 | M37 | 0.5 | £381.60 | 5 days | |
| JBO-502815 | M38 | 0.5 | £441.89 | 5 days | |
| JBO-500724 | M39 | 0.5 | £441.89 | 5 days | |
| JBO-500760 | M40 | 0.5 | £441.89 | 5 days | |
| JBO-500843 | M5 | 0.75 | £73.47 | 5 days | |
| JBO-500916 | M6 | 0.75 | £56.26 | 5 days | |
| JBO-500957 | M7 | 0.75 | £67.98 | 5 days | |
| JBO-500998 | M8 | 0.75 | £58.45 | 5 days | |
| JBO-501031 | M9 | 0.75 | £73.80 | 5 days | |
| JBO-500174 | M10 | 0.75 | £63.71 | 5 days | |
| JBO-500208 | M11 | 0.75 | £81.81 | 5 days | |
| JBO-500234 | M12 | 0.75 | £74.79 | 5 days | |
| JBO-500263 | M13 | 0.75 | £93.55 | 5 days | |
| JBO-500287 | M14 | 0.75 | £80.70 | 5 days | |
| JBO-500316 | M15 | 0.75 | £105.83 | 5 days | |
| JBO-500339 | M16 | 0.75 | £93.10 | 5 days | |
| JBO-500362 | M17 | 0.75 | £117.33 | 5 days | |
| JBO-500375 | M18 | 0.75 | £100.22 | 5 days | |
| JBO-500398 | M19 | 0.75 | £120.61 | 5 days | |
| JBO-500456 | M20 | 0.75 | £106.80 | 5 days | |
| JBO-500474 | M21 | 0.75 | £133.78 | 5 days | |
| JBO-500484 | M22 | 0.75 | £126.10 | 5 days | |
| JBO-500503 | M23 | 0.75 | £144.74 | 5 days | |
| JBO-500516 | M24 | 0.75 | £133.78 | 5 days | |
| JBO-500535 | M25 | 0.75 | £134.87 | 5 days | |
| JBO-500547 | M26 | 0.75 | £148.02 | 5 days | |
| JBO-500564 | M27 | 0.75 | £161.19 | 5 days | |
| JBO-500582 | M28 | 0.75 | £164.47 | 5 days | |
| JBO-500592 | M29 | 0.75 | £202.87 | 5 days | |
| JBO-500630 | M30 | 0.75 | £164.47 | 5 days | |
| JBO-500648 | M31 | 0.75 | £310.32 | 5 days | |
| JBO-500651 | M32 | 0.75 | £313.60 | 5 days | |
| JBO-500666 | M33 | 0.75 | £321.28 | 5 days | |
| JBO-500677 | M34 | 0.75 | £330.05 | 5 days | |
| JBO-500686 | M35 | 0.75 | £336.63 | 5 days | |
| JBO-500699 | M36 | 0.75 | £344.31 | 5 days | |
| JBO-500710 | M37 | 0.75 | £350.89 | 5 days | |
| JBO-500714 | M38 | 0.75 | £360.76 | 5 days | |
| JBO-500725 | M39 | 0.75 | £403.52 | 5 days | |
| JBO-500761 | M40 | 0.75 | £376.11 | 5 days | |
| JBO-501003 | M8 | 1 | £51.88 | 5 days | |
| JBO-501034 | M9 | 1 | £66.35 | 5 days | |
| JBO-500179 | M10 | 1 | £58.12 | 5 days | |
| JBO-500211 | M11 | 1 | £75.00 | 5 days | |
| JBO-500239 | M12 | 1 | £65.90 | 5 days | |
| JBO-500266 | M13 | 1 | £88.27 | 5 days | |
| JBO-500292 | M14 | 1 | £70.95 | 5 days | |
| JBO-500318 | M15 | 1 | £92.98 | 5 days | |
| JBO-500343 | M16 | 1 | £77.64 | 5 days | |
| JBO-500365 | M17 | 1 | £90.04 | 5 days | |
| JBO-500377 | M18 | 1 | £85.65 | 5 days | |
| JBO-500399 | M19 | 1 | £104.18 | 5 days | |
| JBO-500458 | M20 | 1 | £91.90 | 5 days | |
| JBO-500476 | M21 | 1 | £111.84 | 5 days | |
| JBO-500486 | M22 | 1 | £101.54 | 5 days | |
| JBO-500505 | M23 | 1 | £117.33 | 5 days | |
| JBO-500518 | M24 | 1 | £108.45 | 5 days | |
| JBO-500537 | M25 | 1 | £115.14 | 5 days | |
| JBO-500548 | M26 | 1 | £119.52 | 5 days | |
| JBO-500565 | M27 | 1 | £121.72 | 5 days | |
| JBO-500583 | M28 | 1 | £127.21 | 5 days | |
| JBO-500593 | M29 | 1 | £203.95 | 5 days | |
| JBO-500631 | M30 | 1 | £128.29 | 5 days | |
| JBO-500652 | M32 | 1 | £143.64 | 5 days | |
| JBO-500667 | M33 | 1 | £145.83 | 5 days | |
| JBO-500678 | M34 | 1 | £149.13 | 5 days | |
| JBO-500687 | M35 | 1 | £153.51 | 5 days | |
| JBO-500700 | M36 | 1 | £159.00 | 5 days | |
| JBO-500715 | M38 | 1 | £164.47 | 5 days | |
| JBO-500726 | M39 | 1 | £202.87 | 5 days | |
| JBO-500762 | M40 | 1 | £177.65 | 5 days | |
| JBO-500778 | M42 | 1 | £182.03 | 5 days | |
| JBO-500793 | M45 | 1 | £196.27 | 5 days | |
| JBO-500808 | M48 | 1 | £207.25 | 5 days | |
| JBO-500852 | M50 | 1 | £212.72 | 5 days | |
| JBO-500862 | M52 | 1 | £223.68 | 5 days | |
| JBO-502793 | M55 | 1 | £232.47 | 5 days | |
| JBO-500878 | M56 | 1 | £236.85 | 5 days | |
| JBO-500890 | M58 | 1 | £244.52 | 5 days | |
| JBO-500924 | M60 | 1 | £254.39 | 5 days | |
| JBO-500932 | M62 | 1 | £300.45 | 5 days | |
| JBO-504314 | M64 | 1 | £308.13 | 5 days | |
| JBO-500941 | M65 | 1 | £312.51 | 5 days | |
| JBO-520154 | M68 | 1 | £324.56 | 5 days | |
| JBO-520155 | M70 | 1 | £333.35 | 5 days | |
| JBO-520156 | M72 | 1 | £347.59 | 5 days | |
| JBO-500972 | M75 | 1 | £372.81 | 5 days | |
| JBO-520157 | M76 | 1 | £376.11 | 5 days | |
| JBO-520158 | M78 | 1 | £399.14 | 5 days | |
| JBO-520159 | M80 | 1 | £393.65 | 5 days | |
| JBO-500187 | M10 | 1.25 | £67.98 | 5 days | |
| JBO-500246 | M12 | 1.25 | £86.74 | 5 days | |
| JBO-500297 | M14 | 1.25 | £96.28 | 5 days | |
| JBO-500350 | M16 | 1.25 | £255.50 | 5 days | |
| JBO-500384 | M18 | 1.25 | £274.12 | 5 days | |
| JBO-500463 | M20 | 1.25 | £284.00 | 5 days | |
| JBO-505741 | M22 | 1.25 | £303.75 | 5 days | |
| JBO-500523 | M24 | 1.25 | £333.35 | 5 days | |
| JBO-500250 | M12 | 1.5 | £62.27 | 5 days | |
| JBO-500271 | M13 | 1.5 | £142.55 | 5 days | |
| JBO-500301 | M14 | 1.5 | £66.45 | 5 days | |
| JBO-500323 | M15 | 1.5 | £88.60 | 5 days | |
| JBO-500351 | M16 | 1.5 | £72.36 | 5 days | |
| JBO-500369 | M17 | 1.5 | £109.22 | 5 days | |
| JBO-500385 | M18 | 1.5 | £77.97 | 5 days | |
| JBO-500403 | M19 | 1.5 | £156.81 | 5 days | |
| JBO-500464 | M20 | 1.5 | £86.62 | 5 days | |
| JBO-500478 | M21 | 1.5 | £212.72 | 5 days | |
| JBO-500491 | M22 | 1.5 | £92.32 | 5 days | |
| JBO-500524 | M24 | 1.5 | £98.14 | 5 days | |
| JBO-500541 | M25 | 1.5 | £102.76 | 5 days | |
| JBO-500553 | M26 | 1.5 | £105.92 | 5 days | |
| JBO-500569 | M27 | 1.5 | £109.65 | 5 days | |
| JBO-500587 | M28 | 1.5 | £111.84 | 5 days | |
| JBO-500636 | M30 | 1.5 | £117.33 | 5 days | |
| JBO-500656 | M32 | 1.5 | £124.99 | 5 days | |
| JBO-500668 | M33 | 1.5 | £128.29 | 5 days | |
| JBO-500680 | M34 | 1.5 | £141.45 | 5 days | |
| JBO-500688 | M35 | 1.5 | £132.68 | 5 days | |
| JBO-500702 | M36 | 1.5 | £135.97 | 5 days | |
| JBO-500716 | M38 | 1.5 | £143.64 | 5 days | |
| JBO-500727 | M39 | 1.5 | £159.00 | 5 days | |
| JBO-500763 | M40 | 1.5 | £151.32 | 5 days | |
| JBO-500779 | M42 | 1.5 | £161.19 | 5 days | |
| JBO-500794 | M45 | 1.5 | £168.86 | 5 days | |
| JBO-500810 | M48 | 1.5 | £176.54 | 5 days | |
| JBO-500853 | M50 | 1.5 | £183.12 | 5 days | |
| JBO-500863 | M52 | 1.5 | £194.08 | 5 days | |
| JBO-500874 | M55 | 1.5 | £200.65 | 5 days | |
| JBO-500879 | M56 | 1.5 | £203.95 | 5 days | |
| JBO-500891 | M58 | 1.5 | £209.44 | 5 days | |
| JBO-500925 | M60 | 1.5 | £216.02 | 5 days | |
| JBO-500933 | M62 | 1.5 | £224.79 | 5 days | |
| JBO-500936 | M64 | 1.5 | £232.47 | 5 days | |
| JBO-500942 | M65 | 1.5 | £235.75 | 5 days | |
| JBO-500945 | M68 | 1.5 | £244.52 | 5 days | |
| JBO-500964 | M70 | 1.5 | £256.58 | 5 days | |
| JBO-500967 | M72 | 1.5 | £265.35 | 5 days | |
| JBO-500973 | M75 | 1.5 | £279.61 | 5 days | |
| JBO-500976 | M76 | 1.5 | £304.83 | 5 days | |
| JBO-500978 | M78 | 1.5 | £300.45 | 5 days | |
| JBO-501013 | M80 | 1.5 | £304.83 | 5 days | |
| JBO-501018 | M82 | 1.5 | £316.90 | 5 days | |
| JBO-501019 | M85 | 1.5 | £328.97 | 5 days | |
| JBO-501022 | M88 | 1.5 | £349.78 | 5 days | |
| JBO-503431 | M90 | 1.5 | £350.89 | 5 days | |
| JBO-501041 | M92 | 1.5 | £361.85 | 5 days | |
| JBO-501043 | M95 | 1.5 | £375.00 | 5 days | |
| JBO-520170 | M98 | 1.5 | £434.23 | 5 days | |
| JBO-500194 | M100 | 1.5 | £398.03 | 5 days | |
| JBO-500197 | M102 | 1.5 | £449.58 | 5 days | |
| JBO-500199 | M105 | 1.5 | £418.87 | 5 days | |
| JBO-520171 | M108 | 1.5 | £483.56 | 5 days | |
| JBO-503404 | M110 | 1.5 | £444.09 | 5 days | |
| JBO-500217 | M112 | 1.5 | £539.49 | 5 days | |
| JBO-520172 | M115 | 1.5 | £547.16 | 5 days | |
| JBO-520173 | M118 | 1.5 | £595.41 | 5 days | |
| JBO-520174 | M120 | 1.5 | £581.17 | 5 days | |
| JBO-500261 | M122 | 1.5 | £595.41 | 5 days | |
| JBO-504425 | M125 | 1.5 | £618.43 | 5 days | |
| JBO-504426 | M128 | 1.5 | £671.07 | 5 days | |
| JBO-500273 | M130 | 1.5 | £652.42 | 5 days | |
| JBO-520175 | M132 | 1.5 | £700.67 | 5 days | |
| JBO-505452 | M135 | 1.5 | £701.78 | 5 days | |
| JBO-520176 | M138 | 1.5 | £723.70 | 5 days | |
| JBO-520177 | M140 | 1.5 | £740.15 | 5 days | |
| JBO-520178 | M142 | 1.5 | £750.02 | 5 days | |
| JBO-520179 | M145 | 1.5 | £762.09 | 5 days | |
| JBO-520180 | M148 | 1.5 | £781.82 | 5 days | |
| JBO-520181 | M150 | 1.5 | £781.82 | 5 days | |
| JBO-500394 | M18 | 2 | £97.93 | 5 days | |
| JBO-500471 | M20 | 2 | £92.32 | 5 days | |
| JBO-500499 | M22 | 2 | £98.24 | 5 days | |
| JBO-500529 | M24 | 2 | £102.53 | 5 days | |
| JBO-500546 | M25 | 2 | £108.78 | 5 days | |
| JBO-500558 | M26 | 2 | £114.03 | 5 days | |
| JBO-500575 | M27 | 2 | £112.95 | 5 days | |
| JBO-500591 | M28 | 2 | £120.61 | 5 days | |
| JBO-500641 | M30 | 2 | £122.80 | 5 days | |
| JBO-500662 | M32 | 2 | £129.40 | 5 days | |
| JBO-500671 | M33 | 2 | £130.48 | 5 days | |
| JBO-500684 | M34 | 2 | £171.05 | 5 days | |
| JBO-500694 | M35 | 2 | £173.24 | 5 days | |
| JBO-500705 | M36 | 2 | £139.25 | 5 days | |
| JBO-500722 | M38 | 2 | £150.21 | 5 days |
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