Please log in here to access all benefits, including promotional discounts and faster checkouts.
JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M12 x 1
SKU:JBO-500244
The JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M12 x 1 is a precision external-thread gauge designed for fast, accurate verification of metric fine threads. Built for inspector...
Read more ↓
Specification
| Thread Form | Metric |
| Size | M12 |
| Pitch | 1 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Left Hand |
| Tolerance | 6 g |
£83.77
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 - Left Hand - 6g - M12 x 1 is a precision external-thread gauge designed for fast, accurate verification of metric fine threads. Built for inspectors, machinists, and quality teams, it helps confirm that each threaded part meets exact diameter tolerances for M12 x 1 left-hand threads.
Constructed from hardened steel with a durable knurled edge, it withstands busy inspection benches and repeated use, delivering reliable measurements and long service life. The NoGo gauge provides a clear pass/fail indication to speed quality checks and keep production moving.
- Go/No-Go style for quick checks: Quickly determine if a part's external thread diameter is within tolerance; a straightforward pass/fail result reduces inspection time and minimizes guesswork on the shop floor.
- Rugged hardened-steel build: Tough, wear-resistant construction stands up to high-volume use in demanding environments, delivering consistent measurements over many cycles.
- Metric Fine, M12 x 1 with left-hand compatibility: Precisely machined for this size and thread form, including left-hand configurations, ensuring you measure the correct thread and avoid misreads.
The JBO NoGo ring gauge helps streamline your quality workflow, enabling faster inspections, reducing rework, and ensuring threaded components meet standards consistently. With its robust build and precise machining, you can trust it to deliver repeatable results across jobs and shifts.
| Thread Form | Metric |
| Size | M12 |
| Pitch | 1 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Left Hand |
| Tolerance | 6 g |
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-500244. 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 |
No products match your filters.
