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JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M18 x 1
SKU:JBO-511830
The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. It helps engineers, machinists, and quality-control professionals quickly verify internal threads in hou...
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Specifications at a glance
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| Thread Form | Metric |
| Size | M18 |
| Pitch | 1 |
| Gauge Type | Plug Gauge (D/E) |
£108.45
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
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Description
The JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. It helps engineers, machinists, and quality-control professionals quickly verify internal threads in housings, adapters, and other components to ensure parts fit together smoothly.
Sized for M18 x 1 with right-hand orientation and 4H tolerance, this Go/No-Go gauge offers fast, repeatable checks on hole quality and consistency across production runs.
- Go/No-Go quick-check for M18 x 1 fine threads: Rapid, repeatable inspection for metric fine threads in right-hand holes with 4H tolerance, helping you confirm fits at a glance and cut rework.
- Hardened steel construction for long life: Built to withstand frequent use in busy workshops, providing wear resistance and reliable performance over thousands of measurements.
- Ergonomic knurled grip for precise handling: Textured, non-slip surface ensures quick, stable positioning even with gloves, delivering consistent and repeatable results.
With the JBO Thread Plug Gauge, you gain confidence and speed in threading inspections. It enables faster setup, reduces misfits, and promotes consistent hole quality across batches, supporting efficient assembly and reliable performance in the field.
Part Numbers
- Protool Part Number
- JBO-511830
- Brand
- JBO
- Category
- Gauge
No downloads are attached to this product yet.
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
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.
Ask our technical team about this tool
Full Range: JBO Thread Plug Gauges - Metric Fine Go/No-Go
View full collection →You are viewing JBO-511830. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-530859 | M1 | 0.2 | £332.24 | 5 days | |
| JBO-528018 | M1.2 | 0.2 | £328.97 | 5 days | |
| JBO-513456 | M1.4 | 0.2 | £320.18 | 5 days | |
| JBO-517010 | M1.6 | 0.2 | £305.94 | 5 days | |
| JBO-513362 | M1.8 | 0.2 | £300.45 | 5 days | |
| JBO-518211 | M2 | 0.2 | £290.57 | 5 days | |
| JBO-530985 | M2.5 | 0.2 | £285.10 | 5 days | |
| JBO-511872 | M2 | 0.25 | £214.91 | 5 days | |
| JBO-511878 | M2.2 | 0.25 | £214.91 | 5 days | |
| JBO-511891 | M2.5 | 0.25 | £209.44 | 5 days | |
| JBO-512053 | M3 | 0.25 | £209.44 | 5 days | |
| JBO-512068 | M3.5 | 0.25 | £222.60 | 5 days | |
| JBO-514142 | M4 | 0.25 | £222.60 | 5 days | |
| JBO-512235 | M5 | 0.25 | £220.40 | 5 days | |
| JBO-513946 | M6 | 0.25 | £220.40 | 5 days | |
| JBO-511892 | M2.5 | 0.35 | £155.70 | 5 days | |
| JBO-512054 | M3 | 0.35 | £137.06 | 5 days | |
| JBO-512069 | M3.5 | 0.35 | £137.06 | 5 days | |
| JBO-512190 | M4 | 0.35 | £129.40 | 5 days | |
| JBO-512205 | M4.5 | 0.35 | £185.31 | 5 days | |
| JBO-512236 | M5 | 0.35 | £185.31 | 5 days | |
| JBO-512270 | M6 | 0.35 | £194.08 | 5 days | |
| JBO-512291 | M7 | 0.35 | £194.08 | 5 days | |
| JBO-512320 | M8 | 0.35 | £202.87 | 5 days | |
| JBO-512348 | M9 | 0.35 | £202.87 | 5 days | |
| JBO-520002 | M10 | 0.35 | £209.44 | 5 days | |
| JBO-512072 | M3.5 | 0.5 | £153.51 | 5 days | |
| JBO-512195 | M4 | 0.5 | £102.86 | 5 days | |
| JBO-512206 | M4.5 | 0.5 | £115.14 | 5 days | |
| JBO-512238 | M5 | 0.5 | £99.68 | 5 days | |
| JBO-512248 | M5.5 | 0.5 | £194.08 | 5 days | |
| JBO-512271 | M6 | 0.5 | £98.80 | 5 days | |
| JBO-512285 | M6.5 | 0.5 | £194.08 | 5 days | |
| JBO-512292 | M7 | 0.5 | £101.66 | 5 days | |
| JBO-512301 | M7.5 | 0.5 | £196.27 | 5 days | |
| JBO-512321 | M8 | 0.5 | £102.76 | 5 days | |
| JBO-512343 | M8.5 | 0.5 | £196.27 | 5 days | |
| JBO-512350 | M9 | 0.5 | £117.33 | 5 days | |
| JBO-511656 | M10 | 0.5 | £112.95 | 5 days | |
| JBO-511681 | M11 | 0.5 | £129.40 | 5 days | |
| JBO-511699 | M12 | 0.5 | £122.80 | 5 days | |
| JBO-511722 | M13 | 0.5 | £143.64 | 5 days | |
| JBO-511736 | M14 | 0.5 | £132.68 | 5 days | |
| JBO-511762 | M15 | 0.5 | £157.90 | 5 days | |
| JBO-511785 | M16 | 0.5 | £150.21 | 5 days | |
| JBO-511812 | M17 | 0.5 | £187.50 | 5 days | |
| JBO-511825 | M18 | 0.5 | £168.86 | 5 days | |
| JBO-511845 | M19 | 0.5 | £211.63 | 5 days | |
| JBO-511909 | M20 | 0.5 | £187.50 | 5 days | |
| JBO-511927 | M21 | 0.5 | £287.29 | 5 days | |
| JBO-511939 | M22 | 0.5 | £301.53 | 5 days | |
| JBO-511960 | M23 | 0.5 | £311.41 | 5 days | |
| JBO-511970 | M24 | 0.5 | £304.83 | 5 days | |
| JBO-514233 | M25 | 0.5 | £311.41 | 5 days | |
| JBO-512999 | M26 | 0.5 | £312.51 | 5 days | |
| JBO-513054 | M27 | 0.5 | £312.51 | 5 days | |
| JBO-513285 | M28 | 0.5 | £314.71 | 5 days | |
| JBO-513562 | M29 | 0.5 | £319.09 | 5 days | |
| JBO-513366 | M30 | 0.5 | £319.09 | 5 days | |
| JBO-512095 | M31 | 0.5 | £321.28 | 5 days | |
| JBO-512097 | M32 | 0.5 | £321.28 | 5 days | |
| JBO-512110 | M33 | 0.5 | £378.30 | 5 days | |
| JBO-512125 | M34 | 0.5 | £384.88 | 5 days | |
| JBO-512134 | M35 | 0.5 | £389.26 | 5 days | |
| JBO-513561 | M36 | 0.5 | £401.33 | 5 days | |
| JBO-514184 | M37 | 0.5 | £414.48 | 5 days | |
| JBO-514226 | M38 | 0.5 | £425.44 | 5 days | |
| JBO-513747 | M39 | 0.5 | £439.70 | 5 days | |
| JBO-514150 | M40 | 0.5 | £452.85 | 5 days | |
| JBO-512243 | M5 | 0.75 | £79.38 | 5 days | |
| JBO-512277 | M6 | 0.75 | £66.68 | 5 days | |
| JBO-512295 | M7 | 0.75 | £71.49 | 5 days | |
| JBO-512326 | M8 | 0.75 | £70.07 | 5 days | |
| JBO-512352 | M9 | 0.75 | £79.29 | 5 days | |
| JBO-511659 | M10 | 0.75 | £74.90 | 5 days | |
| JBO-511682 | M11 | 0.75 | £84.88 | 5 days | |
| JBO-511701 | M12 | 0.75 | £80.92 | 5 days | |
| JBO-511723 | M13 | 0.75 | £88.27 | 5 days | |
| JBO-511739 | M14 | 0.75 | £88.27 | 5 days | |
| JBO-511764 | M15 | 0.75 | £94.30 | 5 days | |
| JBO-511789 | M16 | 0.75 | £94.30 | 5 days | |
| JBO-511813 | M17 | 0.75 | £107.57 | 5 days | |
| JBO-511826 | M18 | 0.75 | £99.56 | 5 days | |
| JBO-511846 | M19 | 0.75 | £117.33 | 5 days | |
| JBO-511910 | M20 | 0.75 | £110.75 | 5 days | |
| JBO-511928 | M21 | 0.75 | £126.10 | 5 days | |
| JBO-511940 | M22 | 0.75 | £129.40 | 5 days | |
| JBO-512997 | M23 | 0.75 | £141.45 | 5 days | |
| JBO-511971 | M24 | 0.75 | £139.25 | 5 days | |
| JBO-511984 | M25 | 0.75 | £144.74 | 5 days | |
| JBO-511993 | M26 | 0.75 | £149.13 | 5 days | |
| JBO-512009 | M27 | 0.75 | £150.21 | 5 days | |
| JBO-512025 | M28 | 0.75 | £154.62 | 5 days | |
| JBO-512034 | M29 | 0.75 | £166.67 | 5 days | |
| JBO-512078 | M30 | 0.75 | £160.09 | 5 days | |
| JBO-513442 | M31 | 0.75 | £375.00 | 5 days | |
| JBO-516791 | M32 | 0.75 | £375.00 | 5 days | |
| JBO-512111 | M33 | 0.75 | £376.11 | 5 days | |
| JBO-516445 | M34 | 0.75 | £376.11 | 5 days | |
| JBO-513917 | M35 | 0.75 | £379.41 | 5 days | |
| JBO-512147 | M36 | 0.75 | £379.41 | 5 days | |
| JBO-513182 | M37 | 0.75 | £382.68 | 5 days | |
| JBO-512159 | M38 | 0.75 | £382.68 | 5 days | |
| JBO-512168 | M39 | 0.75 | £392.56 | 5 days | |
| JBO-512208 | M40 | 0.75 | £385.98 | 5 days | |
| JBO-512331 | M8 | 1 | £61.75 | 5 days | |
| JBO-512356 | M9 | 1 | £67.45 | 5 days | |
| JBO-511663 | M10 | 1 | £65.03 | 5 days | |
| JBO-511684 | M11 | 1 | £71.94 | 5 days | |
| JBO-511703 | M12 | 1 | £70.62 | 5 days | |
| JBO-511724 | M13 | 1 | £82.14 | 5 days | |
| JBO-511745 | M14 | 1 | £75.12 | 5 days | |
| JBO-511766 | M15 | 1 | £84.99 | 5 days | |
| JBO-511792 | M16 | 1 | £80.70 | 5 days | |
| JBO-511815 | M17 | 1 | £91.35 | 5 days | |
| JBO-511829 | M18 | 1 | £84.33 | 5 days | |
| JBO-511849 | M19 | 1 | £100.43 | 5 days | |
| JBO-511911 | M20 | 1 | £90.04 | 5 days | |
| JBO-511930 | M21 | 1 | £114.03 | 5 days | |
| JBO-511942 | M22 | 1 | £101.09 | 5 days | |
| JBO-511961 | M23 | 1 | £122.80 | 5 days | |
| JBO-511972 | M24 | 1 | £108.89 | 5 days | |
| JBO-511985 | M25 | 1 | £119.52 | 5 days | |
| JBO-511994 | M26 | 1 | £123.91 | 5 days | |
| JBO-512011 | M27 | 1 | £128.29 | 5 days | |
| JBO-512026 | M28 | 1 | £130.48 | 5 days | |
| JBO-512035 | M29 | 1 | £150.21 | 5 days | |
| JBO-512079 | M30 | 1 | £132.68 | 5 days | |
| JBO-512098 | M32 | 1 | £137.06 | 5 days | |
| JBO-512112 | M33 | 1 | £143.64 | 5 days | |
| JBO-512126 | M34 | 1 | £148.02 | 5 days | |
| JBO-512135 | M35 | 1 | £155.70 | 5 days | |
| JBO-512148 | M36 | 1 | £160.09 | 5 days | |
| JBO-512160 | M38 | 1 | £171.05 | 5 days | |
| JBO-512169 | M39 | 1 | £224.79 | 5 days | |
| JBO-512209 | M40 | 1 | £183.12 | 5 days | |
| JBO-511675 | M10 | 1.25 | £75.78 | 5 days | |
| JBO-511711 | M12 | 1.25 | £80.61 | 5 days | |
| JBO-511752 | M14 | 1.25 | £92.89 | 5 days | |
| JBO-511800 | M16 | 1.25 | £222.60 | 5 days | |
| JBO-511833 | M18 | 1.25 | £264.27 | 5 days | |
| JBO-511917 | M20 | 1.25 | £279.61 | 5 days | |
| JBO-514324 | M22 | 1.25 | £285.10 | 5 days | |
| JBO-514109 | M24 | 1.25 | £289.49 | 5 days | |
| JBO-511716 | M12 | 1.5 | £64.37 | 5 days | |
| JBO-511728 | M13 | 1.5 | £132.68 | 5 days | |
| JBO-511755 | M14 | 1.5 | £68.75 | 5 days | |
| JBO-511771 | M15 | 1.5 | £84.99 | 5 days | |
| JBO-511802 | M16 | 1.5 | £71.84 | 5 days | |
| JBO-511818 | M17 | 1.5 | £119.52 | 5 days | |
| JBO-511835 | M18 | 1.5 | £76.44 | 5 days | |
| JBO-511855 | M19 | 1.5 | £178.73 | 5 days | |
| JBO-511918 | M20 | 1.5 | £82.02 | 5 days | |
| JBO-511933 | M21 | 1.5 | £194.08 | 5 days | |
| JBO-511948 | M22 | 1.5 | £89.92 | 5 days | |
| JBO-511976 | M24 | 1.5 | £96.83 | 5 days | |
| JBO-511989 | M25 | 1.5 | £100.43 | 5 days | |
| JBO-511997 | M26 | 1.5 | £103.63 | 5 days | |
| JBO-512015 | M27 | 1.5 | £106.70 | 5 days | |
| JBO-512028 | M28 | 1.5 | £109.65 | 5 days | |
| JBO-512083 | M30 | 1.5 | £118.42 | 5 days | |
| JBO-512101 | M32 | 1.5 | £120.61 | 5 days | |
| JBO-512117 | M33 | 1.5 | £123.91 | 5 days | |
| JBO-512130 | M34 | 1.5 | £130.48 | 5 days | |
| JBO-512137 | M35 | 1.5 | £129.40 | 5 days | |
| JBO-512150 | M36 | 1.5 | £131.59 | 5 days | |
| JBO-512162 | M38 | 1.5 | £144.74 | 5 days | |
| JBO-512170 | M39 | 1.5 | £154.62 | 5 days | |
| JBO-512212 | M40 | 1.5 | £152.43 | 5 days | |
| JBO-511843 | M18 | 2 | £84.64 | 5 days | |
| JBO-511923 | M20 | 2 | £87.73 | 5 days | |
| JBO-511955 | M22 | 2 | £93.86 | 5 days | |
| JBO-511981 | M24 | 2 | £99.46 | 5 days | |
| JBO-511992 | M25 | 2 | £105.48 | 5 days | |
| JBO-512003 | M26 | 2 | £109.22 | 5 days | |
| JBO-512020 | M27 | 2 | £108.33 | 5 days | |
| JBO-512032 | M28 | 2 | £115.14 | 5 days | |
| JBO-512089 | M30 | 2 | £118.42 | 5 days | |
| JBO-512106 | M32 | 2 | £123.91 | 5 days | |
| JBO-512120 | M33 | 2 | £127.21 | 5 days | |
| JBO-512133 | M34 | 2 | £169.96 | 5 days | |
| JBO-512142 | M35 | 2 | £173.24 | 5 days | |
| JBO-512153 | M36 | 2 | £137.06 | 5 days | |
| JBO-512165 | M38 | 2 | £151.32 | 5 days | |
| JBO-512173 | M39 | 2 | £154.62 | 5 days | |
| JBO-512216 | M40 | 2 | £161.19 | 5 days | |
| JBO-512094 | M30 | 3 | £143.64 | 5 days | |
| JBO-512124 | M33 | 3 | £150.21 | 5 days | |
| JBO-512156 | M36 | 3 | £152.43 | 5 days | |
| JBO-512175 | M39 | 3 | £185.31 | 5 days | |
| JBO-512217 | M40 | 3 | £207.25 | 5 days | |
| JBO-512197 | M4 | 0.5 | £118.42 | 5 days | |
| JBO-512207 | M4.5 | 0.5 | £131.59 | 5 days | |
| JBO-512240 | M5 | 0.5 | £114.03 | 5 days | |
| JBO-512249 | M5.5 | 0.5 | £201.76 | 5 days | |
| JBO-512274 | M6 | 0.5 | £114.03 | 5 days | |
| JBO-512294 | M7 | 0.5 | £119.52 | 5 days | |
| JBO-512324 | M8 | 0.5 | £117.33 | 5 days | |
| JBO-512351 | M9 | 0.5 | £143.64 | 5 days | |
| JBO-511657 | M10 | 0.5 | £131.59 | 5 days | |
| JBO-514114 | M11 | 0.5 | £157.90 | 5 days | |
| JBO-511700 | M12 | 0.5 | £142.55 | 5 days | |
| JBO-511738 | M14 | 0.5 | £159.00 | 5 days | |
| JBO-511763 | M15 | 0.5 | £187.50 | 5 days | |
| JBO-511787 | M16 | 0.5 | £182.03 | 5 days | |
| JBO-518297 | M17 | 0.5 | £226.98 | 5 days | |
| JBO-513016 | M18 | 0.5 | £212.72 | 5 days | |
| JBO-516782 | M20 | 0.5 | £231.36 | 5 days | |
| JBO-512280 | M6 | 0.75 | £74.03 | 5 days | |
| JBO-512298 | M7 | 0.75 | £83.23 | 5 days | |
| JBO-512327 | M8 | 0.75 | £74.13 | 5 days | |
| JBO-512354 | M9 | 0.75 | £92.77 | 5 days | |
| JBO-511661 | M10 | 0.75 | £87.40 | 5 days | |
| JBO-511683 | M11 | 0.75 | £101.87 | 5 days | |
| JBO-511702 | M12 | 0.75 | £96.05 | 5 days | |
| JBO-513284 | M13 | 0.75 | £105.71 | 5 days | |
| JBO-511742 | M14 | 0.75 | £102.98 | 5 days | |
| JBO-511765 | M15 | 0.75 | £109.65 | 5 days | |
| JBO-511790 | M16 | 0.75 | £109.65 | 5 days | |
| JBO-511814 | M17 | 0.75 | £128.29 | 5 days | |
| JBO-511828 | M18 | 0.75 | £116.23 | 5 days | |
| JBO-511847 | M19 | 0.75 | £134.87 | 5 days | |
| JBO-514211 | M20 | 0.75 | £131.59 | 5 days | |
| JBO-511929 | M21 | 0.75 | £152.43 | 5 days | |
| JBO-511941 | M22 | 0.75 | £152.43 | 5 days | |
| JBO-523226 | M23 | 0.75 | £163.39 | 5 days | |
| JBO-512335 | M8 | 1 | £69.08 | 5 days | |
| JBO-512359 | M9 | 1 | £79.29 | 5 days | |
| JBO-511668 | M10 | 1 | £72.50 | 5 days | |
| JBO-511685 | M11 | 1 | £86.52 | 5 days | |
| JBO-511706 | M12 | 1 | £78.84 | 5 days | |
| JBO-511725 | M13 | 1 | £98.59 | 5 days | |
| JBO-511747 | M14 | 1 | £91.35 | 5 days | |
| JBO-511768 | M15 | 1 | £101.87 | 5 days | |
| JBO-511795 | M16 | 1 | £97.16 | 5 days | |
| JBO-511816 | M17 | 1 | £109.65 | 5 days | |
| JBO-511831 | M18 | 1 | £102.76 | 5 days | |
| JBO-511851 | M19 | 1 | £122.80 | 5 days | |
| JBO-511913 | M20 | 1 | £108.33 | 5 days | |
| JBO-511932 | M21 | 1 | £139.25 | 5 days | |
| JBO-511945 | M22 | 1 | £120.61 | 5 days | |
| JBO-511962 | M23 | 1 | £148.02 | 5 days | |
| JBO-511974 | M24 | 1 | £129.40 | 5 days | |
| JBO-511986 | M25 | 1 | £144.74 | 5 days | |
| JBO-511995 | M26 | 1 | £149.13 | 5 days | |
| JBO-512012 | M27 | 1 | £154.62 | 5 days | |
| JBO-512027 | M28 | 1 | £159.00 | 5 days | |
| JBO-513718 | M29 | 1 | £178.73 | 5 days | |
| JBO-512081 | M30 | 1 | £161.19 | 5 days | |
| JBO-512099 | M32 | 1 | £164.47 | 5 days |
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