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JBO Thread Plug Gauge (NoGo) - Metric Fine - Left Hand - 6H - M42 x 1
SKU:JBO-520040
The JBO Thread Plug Gauge (NoGo) - Metric Fine is a precision inspection tool designed to verify metric fine threaded holes. Specifically configured for left-handed M42 x 1 threads and 6H toleran...
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Specification
| Thread Form | Metric |
| Size | M42 |
| Pitch | 1 |
| Gauge Type | Plug Gauge (NoGo) |
| Thread Direction | Left Hand |
| Tolerance | 6H |
£130.48
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 Plug Gauge (NoGo) - Metric Fine is a precision inspection tool designed to verify metric fine threaded holes. Specifically configured for left-handed M42 x 1 threads and 6H tolerance, this NoGo gauge helps you quickly confirm holes meet the required size limits during quality checks.
Constructed from hardened steel, this plug gauge resists wear and stands up to daily use in demanding workshop environments, delivering reliable performance over time.
- Metric Fine NoGo gauge for M42 x 1 (6H): Quickly verify threaded holes meet the maximum allowed size, enabling consistent pass/fail checks in quality control.
- Left-hand thread compatibility: Designed for left-handed threads, ensuring correct orientation and reliable measurements in suitable assemblies.
- Hardened steel construction: Durable, wear-resistant material that maintains accuracy and extends tool life in busy work environments.
With its precise dimensions and robust build, the JBO Metric Fine NoGo plug gauge streamlines inspection workflows. It reduces downtime by providing fast, repeatable checks that help you avoid assembly issues and rework, while delivering the confidence that your threaded holes conform to M42 x 1 and 6H specifications.
| Thread Form | Metric |
| Size | M42 |
| Pitch | 1 |
| Gauge Type | Plug Gauge (NoGo) |
| Thread Direction | Left Hand |
| Tolerance | 6H |
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.
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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 Plug Gauges (NoGo) - Metric Fine
View full collection →You are viewing JBO-520040. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-510384 | M42 | 1 | £99.13 | 5 days | |
| JBO-510396 | M45 | 1 | £104.39 | 5 days | |
| JBO-510410 | M48 | 1 | £111.84 | 5 days | |
| JBO-510435 | M50 | 1 | £117.33 | 5 days | |
| JBO-510445 | M52 | 1 | £121.72 | 5 days | |
| JBO-513566 | M55 | 1 | £129.40 | 5 days | |
| JBO-510458 | M56 | 1 | £131.59 | 5 days | |
| JBO-510465 | M58 | 1 | £141.45 | 5 days | |
| JBO-513147 | M60 | 1 | £148.02 | 5 days | |
| JBO-513479 | M62 | 1 | £167.77 | 5 days | |
| JBO-513731 | M64 | 1 | £169.96 | 5 days | |
| JBO-514016 | M65 | 1 | £172.16 | 5 days | |
| JBO-516620 | M68 | 1 | £182.03 | 5 days | |
| JBO-510507 | M70 | 1 | £186.41 | 5 days | |
| JBO-520033 | M72 | 1 | £194.08 | 5 days | |
| JBO-520034 | M75 | 1 | £207.25 | 5 days | |
| JBO-520035 | M76 | 1 | £208.34 | 5 days | |
| JBO-520036 | M78 | 1 | £221.49 | 5 days | |
| JBO-520037 | M80 | 1 | £219.30 | 5 days | |
| JBO-510386 | M42 | 1.5 | £84.99 | 5 days | |
| JBO-510397 | M45 | 1.5 | £89.92 | 5 days | |
| JBO-510412 | M48 | 1.5 | £95.74 | 5 days | |
| JBO-510436 | M50 | 1.5 | £99.13 | 5 days | |
| JBO-510446 | M52 | 1.5 | £102.32 | 5 days | |
| JBO-510454 | M55 | 1.5 | £109.65 | 5 days | |
| JBO-510459 | M56 | 1.5 | £111.84 | 5 days | |
| JBO-510466 | M58 | 1.5 | £115.14 | 5 days | |
| JBO-510483 | M60 | 1.5 | £119.52 | 5 days | |
| JBO-510488 | M62 | 1.5 | £123.91 | 5 days | |
| JBO-510493 | M64 | 1.5 | £127.21 | 5 days | |
| JBO-510496 | M65 | 1.5 | £131.59 | 5 days | |
| JBO-510501 | M68 | 1.5 | £134.87 | 5 days | |
| JBO-510508 | M70 | 1.5 | £141.45 | 5 days | |
| JBO-510511 | M72 | 1.5 | £149.13 | 5 days | |
| JBO-510513 | M75 | 1.5 | £155.70 | 5 days | |
| JBO-513382 | M76 | 1.5 | £188.61 | 5 days | |
| JBO-510517 | M78 | 1.5 | £162.28 | 5 days | |
| JBO-510543 | M80 | 1.5 | £167.77 | 5 days | |
| JBO-510546 | M82 | 1.5 | £169.96 | 5 days | |
| JBO-510547 | M85 | 1.5 | £176.54 | 5 days | |
| JBO-510551 | M88 | 1.5 | £182.03 | 5 days | |
| JBO-510561 | M90 | 1.5 | £186.41 | 5 days | |
| JBO-513056 | M92 | 1.5 | £194.08 | 5 days | |
| JBO-520054 | M98 | 1.5 | £246.71 | 5 days | |
| JBO-510089 | M100 | 1.5 | £207.25 | 5 days | |
| JBO-510092 | M102 | 1.5 | £248.90 | 5 days | |
| JBO-513006 | M105 | 1.5 | £219.30 | 5 days | |
| JBO-520055 | M108 | 1.5 | £265.35 | 5 days | |
| JBO-513931 | M110 | 1.5 | £230.28 | 5 days | |
| JBO-510105 | M112 | 1.5 | £267.55 | 5 days | |
| JBO-520056 | M115 | 1.5 | £276.31 | 5 days | |
| JBO-520057 | M118 | 1.5 | £284.00 | 5 days | |
| JBO-520058 | M120 | 1.5 | £286.19 | 5 days | |
| JBO-520059 | M122 | 1.5 | £309.22 | 5 days | |
| JBO-520060 | M125 | 1.5 | £301.53 | 5 days | |
| JBO-510124 | M128 | 1.5 | £325.67 | 5 days | |
| JBO-517862 | M130 | 1.5 | £313.60 | 5 days | |
| JBO-520061 | M132 | 1.5 | £319.09 | 5 days | |
| JBO-517018 | M135 | 1.5 | £334.44 | 5 days | |
| JBO-520062 | M138 | 1.5 | £341.01 | 5 days | |
| JBO-520063 | M140 | 1.5 | £346.50 | 5 days | |
| JBO-520064 | M142 | 1.5 | £345.40 | 5 days | |
| JBO-520065 | M145 | 1.5 | £357.46 | 5 days | |
| JBO-520066 | M148 | 1.5 | £367.34 | 5 days | |
| JBO-518078 | M150 | 1.5 | £373.92 | 5 days | |
| JBO-510389 | M42 | 2 | £87.63 | 5 days | |
| JBO-510400 | M45 | 2 | £93.55 | 5 days | |
| JBO-510415 | M48 | 2 | £98.69 | 5 days | |
| JBO-510439 | M50 | 2 | £102.10 | 5 days | |
| JBO-510448 | M52 | 2 | £106.14 | 5 days | |
| JBO-510456 | M55 | 2 | £112.95 | 5 days | |
| JBO-510461 | M56 | 2 | £115.14 | 5 days | |
| JBO-510467 | M58 | 2 | £118.42 | 5 days | |
| JBO-510484 | M60 | 2 | £123.91 | 5 days | |
| JBO-510489 | M62 | 2 | £127.21 | 5 days | |
| JBO-510494 | M64 | 2 | £131.59 | 5 days | |
| JBO-510497 | M65 | 2 | £134.87 | 5 days | |
| JBO-510502 | M68 | 2 | £141.45 | 5 days | |
| JBO-510509 | M70 | 2 | £144.74 | 5 days | |
| JBO-510512 | M72 | 2 | £150.21 | 5 days | |
| JBO-510514 | M75 | 2 | £155.70 | 5 days | |
| JBO-510516 | M76 | 2 | £166.67 | 5 days | |
| JBO-510518 | M78 | 2 | £169.96 | 5 days | |
| JBO-510544 | M80 | 2 | £167.77 | 5 days | |
| JBO-516627 | M82 | 2 | £178.73 | 5 days | |
| JBO-510548 | M85 | 2 | £178.73 | 5 days | |
| JBO-510552 | M88 | 2 | £196.27 | 5 days | |
| JBO-510562 | M90 | 2 | £186.41 | 5 days | |
| JBO-510565 | M92 | 2 | £191.89 | 5 days | |
| JBO-510567 | M95 | 2 | £196.27 | 5 days | |
| JBO-510568 | M98 | 2 | £201.76 | 5 days | |
| JBO-510090 | M100 | 2 | £207.25 | 5 days | |
| JBO-516575 | M102 | 2 | £252.20 | 5 days | |
| JBO-510093 | M105 | 2 | £219.30 | 5 days | |
| JBO-510095 | M108 | 2 | £266.46 | 5 days | |
| JBO-510103 | M110 | 2 | £229.17 | 5 days | |
| JBO-516577 | M112 | 2 | £274.12 | 5 days | |
| JBO-513918 | M115 | 2 | £276.31 | 5 days | |
| JBO-519513 | M118 | 2 | £288.38 | 5 days | |
| JBO-510122 | M120 | 2 | £286.19 | 5 days | |
| JBO-516578 | M122 | 2 | £309.22 | 5 days | |
| JBO-514978 | M125 | 2 | £301.53 | 5 days | |
| JBO-520077 | M128 | 2 | £309.22 | 5 days | |
| JBO-514719 | M130 | 2 | £313.60 | 5 days | |
| JBO-510129 | M132 | 2 | £319.09 | 5 days | |
| JBO-520078 | M135 | 2 | £326.75 | 5 days | |
| JBO-520079 | M138 | 2 | £335.54 | 5 days | |
| JBO-518882 | M140 | 2 | £338.82 | 5 days | |
| JBO-520081 | M142 | 2 | £345.40 | 5 days | |
| JBO-519516 | M145 | 2 | £350.89 | 5 days | |
| JBO-520083 | M148 | 2 | £359.66 | 5 days | |
| JBO-510149 | M150 | 2 | £365.15 | 5 days | |
| JBO-510391 | M42 | 3 | £102.98 | 5 days | |
| JBO-510402 | M45 | 3 | £108.78 | 5 days | |
| JBO-510418 | M48 | 3 | £115.14 | 5 days | |
| JBO-510441 | M50 | 3 | £150.21 | 5 days | |
| JBO-510450 | M52 | 3 | £123.91 | 5 days | |
| JBO-516616 | M55 | 3 | £149.13 | 5 days | |
| JBO-510462 | M56 | 3 | £148.02 | 5 days | |
| JBO-510468 | M58 | 3 | £155.70 | 5 days | |
| JBO-513226 | M60 | 3 | £159.00 | 5 days | |
| JBO-513528 | M62 | 3 | £166.67 | 5 days | |
| JBO-513531 | M64 | 3 | £166.67 | 5 days | |
| JBO-510498 | M65 | 3 | £168.86 | 5 days | |
| JBO-513536 | M68 | 3 | £182.03 | 5 days | |
| JBO-520102 | M70 | 3 | £183.12 | 5 days | |
| JBO-513126 | M72 | 3 | £186.41 | 5 days | |
| JBO-510515 | M75 | 3 | £198.46 | 5 days | |
| JBO-520103 | M76 | 3 | £199.57 | 5 days | |
| JBO-516626 | M80 | 3 | £209.44 | 5 days | |
| JBO-510549 | M85 | 3 | £223.68 | 5 days | |
| JBO-510563 | M90 | 3 | £235.75 | 5 days | |
| JBO-516857 | M95 | 3 | £250.01 | 5 days | |
| JBO-510091 | M100 | 3 | £264.27 | 5 days | |
| JBO-517741 | M105 | 3 | £276.31 | 5 days | |
| JBO-510104 | M110 | 3 | £287.29 | 5 days | |
| JBO-517090 | M115 | 3 | £303.75 | 5 days | |
| JBO-520104 | M120 | 3 | £314.71 | 5 days | |
| JBO-510123 | M125 | 3 | £327.86 | 5 days | |
| JBO-513757 | M130 | 3 | £342.12 | 5 days | |
| JBO-516892 | M135 | 3 | £356.38 | 5 days | |
| JBO-510145 | M140 | 3 | £370.62 | 5 days | |
| JBO-512979 | M145 | 3 | £384.88 | 5 days | |
| JBO-520105 | M150 | 3 | £398.03 | 5 days | |
| JBO-513506 | M52 | 4 | £141.45 | 5 days | |
| JBO-516925 | M55 | 4 | £160.09 | 5 days | |
| JBO-510463 | M56 | 4 | £148.02 | 5 days | |
| JBO-520106 | M58 | 4 | £161.19 | 5 days | |
| JBO-510487 | M60 | 4 | £159.00 | 5 days | |
| JBO-510490 | M62 | 4 | £163.39 | 5 days | |
| JBO-510495 | M64 | 4 | £166.67 | 5 days | |
| JBO-514098 | M65 | 4 | £168.86 | 5 days | |
| JBO-520107 | M68 | 4 | £178.73 | 5 days | |
| JBO-518830 | M72 | 4 | £186.41 | 5 days | |
| JBO-520109 | M75 | 4 | £198.46 | 5 days | |
| JBO-520110 | M76 | 4 | £199.57 | 5 days | |
| JBO-510545 | M80 | 4 | £209.44 | 5 days | |
| JBO-510550 | M85 | 4 | £223.68 | 5 days | |
| JBO-520111 | M90 | 4 | £235.75 | 5 days | |
| JBO-520112 | M95 | 4 | £250.01 | 5 days | |
| JBO-517074 | M100 | 4 | £264.27 | 5 days | |
| JBO-516044 | M105 | 4 | £276.31 | 5 days | |
| JBO-513659 | M110 | 4 | £287.29 | 5 days | |
| JBO-520113 | M115 | 4 | £303.75 | 5 days | |
| JBO-517003 | M120 | 4 | £314.71 | 5 days | |
| JBO-520114 | M125 | 4 | £327.86 | 5 days | |
| JBO-520115 | M130 | 4 | £342.12 | 5 days | |
| JBO-520116 | M135 | 4 | £356.38 | 5 days | |
| JBO-520117 | M140 | 4 | £370.62 | 5 days | |
| JBO-520118 | M145 | 4 | £384.88 | 5 days | |
| JBO-520119 | M150 | 4 | £398.03 | 5 days | |
| JBO-520120 | M70 | 6 | £200.65 | 5 days | |
| JBO-510510 | M72 | 6 | £203.95 | 5 days | |
| JBO-520122 | M76 | 6 | £210.53 | 5 days | |
| JBO-510542 | M80 | 6 | £223.68 | 5 days | |
| JBO-520123 | M85 | 6 | £237.94 | 5 days | |
| JBO-516631 | M90 | 6 | £253.31 | 5 days | |
| JBO-520124 | M95 | 6 | £270.84 | 5 days | |
| JBO-520125 | M100 | 6 | £284.00 | 5 days | |
| JBO-510388 | M42 | 1.5 | £104.29 | 5 days | |
| JBO-510398 | M45 | 1.5 | £108.12 | 5 days | |
| JBO-510413 | M48 | 1.5 | £117.33 | 5 days | |
| JBO-510437 | M50 | 1.5 | £120.61 | 5 days | |
| JBO-510447 | M52 | 1.5 | £124.99 | 5 days | |
| JBO-516615 | M55 | 1.5 | £137.06 | 5 days | |
| JBO-518946 | M56 | 1.5 | £141.45 | 5 days | |
| JBO-518533 | M58 | 1.5 | £145.83 | 5 days | |
| JBO-514813 | M60 | 1.5 | £148.02 | 5 days | |
| JBO-510390 | M42 | 2 | £107.15 | 5 days | |
| JBO-516609 | M45 | 2 | £114.03 | 5 days | |
| JBO-510416 | M48 | 2 | £123.91 | 5 days | |
| JBO-524417 | M50 | 2 | £128.29 | 5 days | |
| JBO-510449 | M52 | 2 | £132.68 | 5 days | |
| JBO-513206 | M55 | 2 | £150.21 | 5 days | |
| JBO-524418 | M56 | 2 | £145.83 | 5 days | |
| JBO-524419 | M58 | 2 | £145.83 | 5 days | |
| JBO-513540 | M60 | 2 | £151.32 | 5 days | |
| JBO-524475 | M62 | 2 | £168.86 | 5 days | |
| JBO-523684 | M64 | 2 | £174.35 | 5 days | |
| JBO-526516 | M65 | 2 | £172.16 | 5 days | |
| JBO-526518 | M68 | 2 | £177.65 | 5 days | |
| JBO-513441 | M70 | 2 | £182.03 | 5 days | |
| JBO-524469 | M72 | 2 | £187.50 | 5 days | |
| JBO-524470 | M75 | 2 | £196.27 | 5 days | |
| JBO-517395 | M76 | 2 | £202.87 | 5 days | |
| JBO-517904 | M78 | 2 | £212.72 | 5 days | |
| JBO-519864 | M80 | 2 | £209.44 | 5 days | |
| JBO-524471 | M82 | 2 | £224.79 | 5 days | |
| JBO-517009 | M85 | 2 | £219.30 | 5 days | |
| JBO-510387 | M42 | 1.5 | £112.95 | 5 days | |
| JBO-519782 | M45 | 1.5 | £115.14 | 5 days | |
| JBO-513661 | M48 | 1.5 | £131.59 | 5 days | |
| JBO-518897 | M50 | 1.5 | £127.21 | 5 days | |
| JBO-514158 | M52 | 1.5 | £130.48 | 5 days | |
| JBO-517423 | M55 | 1.5 | £144.74 | 5 days | |
| JBO-523163 | M56 | 1.5 | £154.62 | 5 days | |
| JBO-515466 | M58 | 1.5 | £152.43 | 5 days | |
| JBO-514890 | M60 | 1.5 | £160.09 | 5 days | |
| JBO-517118 | M42 | 2 | £116.23 | 5 days | |
| JBO-515068 | M45 | 2 | £123.91 | 5 days | |
| JBO-516610 | M48 | 2 | £129.40 | 5 days | |
| JBO-524420 | M50 | 2 | £142.55 | 5 days | |
| JBO-515069 | M52 | 2 | £141.45 | 5 days | |
| JBO-517064 | M55 | 2 | £155.70 | 5 days | |
| JBO-524421 | M56 | 2 | £160.09 | 5 days | |
| JBO-524422 | M58 | 2 | £164.47 | 5 days | |
| JBO-524423 | M60 | 2 | £163.39 | 5 days | |
| JBO-520040 Viewing | M42 | 1 | £130.48 | 5 days | |
| JBO-520041 | M45 | 1 | £137.06 | 5 days | |
| JBO-514651 | M48 | 1 | £149.13 | 5 days | |
| JBO-516867 | M50 | 1 | £154.62 | 5 days | |
| JBO-517230 | M52 | 1 | £161.19 | 5 days | |
| JBO-517232 | M55 | 1 | £169.96 | 5 days | |
| JBO-517234 | M56 | 1 | £167.77 | 5 days | |
| JBO-517237 | M58 | 1 | £185.31 | 5 days | |
| JBO-517240 | M60 | 1 | £195.18 | 5 days | |
| JBO-513097 | M42 | 1.5 | £107.03 | 5 days | |
| JBO-510399 | M45 | 1.5 | £112.95 | 5 days | |
| JBO-510414 | M48 | 1.5 | £122.80 | 5 days | |
| JBO-510438 | M50 | 1.5 | £123.91 | 5 days | |
| JBO-513500 | M52 | 1.5 | £128.29 | 5 days | |
| JBO-510455 | M55 | 1.5 | £141.45 | 5 days | |
| JBO-510460 | M56 | 1.5 | £143.64 | 5 days | |
| JBO-513186 | M58 | 1.5 | £152.43 | 5 days | |
| JBO-513227 | M60 | 1.5 | £160.09 | 5 days | |
| JBO-517283 | M62 | 1.5 | £163.39 | 5 days | |
| JBO-517060 | M64 | 1.5 | £169.96 | 5 days | |
| JBO-516618 | M65 | 1.5 | £174.35 | 5 days | |
| JBO-517284 | M68 | 1.5 | £174.35 | 5 days | |
| JBO-517285 | M70 | 1.5 | £180.92 | 5 days |
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