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JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 4H - M4 x 0.5
SKU:JBO-512196
The JBO Thread Plug Gauge is a precision tool built for metric fine threads, specifically designed to verify M4 x 0.5 right‑hand threaded holes. Its Go/No‑Go design lets you quickly confirm wheth...
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Specifications at a glance
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| Thread Form | Metric |
| Size | M4 |
| Pitch | 0.5 |
| Gauge Type | Plug Gauge (D/E) |
£128.29
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.
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Description
The JBO Thread Plug Gauge is a precision tool built for metric fine threads, specifically designed to verify M4 x 0.5 right‑hand threaded holes. Its Go/No‑Go design lets you quickly confirm whether a hole will accept a mating part, helping assemblies go together smoothly and without guesswork.
Manufactured from hardened steel for durable, reliable performance in busy workshops, this gauge maintains accuracy after repeated use. The 4H tolerance specification ensures consistent results across inspections, making it an essential addition for engineers, machinists, quality inspectors, and maintenance teams who demand dependable thread checks in demanding environments.
- Fast Go/No-Go inspection: Quickly determine if a hole meets the required M4 x 0.5 right‑hand thread, reducing inspection time and minimizing rework.
- Metric fine thread accuracy M4 x 0.5, right-hand, 4H: Ensures precise thread dimensions and reliable fit with standard fasteners in critical assemblies.
- Hardened steel, durable construction: Built to withstand daily shop use, resist wear, and maintain long‑term accuracy for repeated inspections.
Using the JBO Thread Plug Gauge streamlines quality control and assembly workflows. It helps you confirm thread suitability at a glance, save time during inspections, and achieve consistent, repeatable results across production runs and maintenance tasks.
Part Numbers
- Protool Part Number
- JBO-512196
- 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-512196. 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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