Dispatch Hours
Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).
- Mon – Thurs8:00 – 17:00
- Friday8:00 – 16:30
- Sat & SunClosed
Metric Coarse are essential measuring tools designed to ensure accurate and precise measurements of metric coarse threads. These plug gauges play a vital role in various industries where proper threading is crucial for component assembly. With their meticulously crafted design, they enable efficient and reliable inspection of threaded holes, verifying the compliance of components with required standards. Constructed from high-quality materials like hardened steel, the JBO Plug Gauges (GO) - Metric Coarse are durable and resistant to wear, ensuring long-lasting performance even in demanding work environments. The gauges' user-friendly features and precise measurements make them indispensable tools for quality control processes, precision engineering, and ensuring the seamless fitment of threaded connections according to specified metric coarse thread standards.

Click any SKU to view full product details, specifications and datasheets.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-511110 | M42 | 4.5 | £108.96 | 5 days |
|
| JBO-511122 | M45 | 4.5 | £116.44 | 5 days |
|
| JBO-511136 | M48 | 5 | £124.99 | 5 days |
|
| JBO-511174 | M52 | 5 | £133.53 | 5 days |
|
| JBO-511187 | M56 | 5.5 | £149.56 | 5 days |
|
| JBO-511211 | M60 | 5.5 | £166.64 | 5 days |
|
| JBO-511218 | M64 | 6 | £182.67 | 5 days |
|
| JBO-513504 | M68 | 6 | £195.48 | 5 days |
|
| JBO-514598 | M42 | 4.5 | £137.80 | 5 days |
|
| JBO-513679 | M45 | 4.5 | £147.42 | 5 days |
|
| JBO-511137 | M48 | 5 | £158.10 | 5 days |
|
| JBO-514599 | M52 | 5 | £168.78 | 5 days |
|
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Fast dispatch, clear delivery options and a friendly technical team on the end of the phone.
Orders dispatched Monday to Friday between 8am and 5pm (4:30pm on Fridays).
| Service | Cost |
|---|---|
| Royal Mail Tracked 24 | £5.90 |
| DPD Standard Next Day | £8.00 |
| Royal Mail Special Delivery by 1pm | £12.50 |
| DPD Saturday Delivery | £25.00 |
Saturday delivery available on orders placed before 4pm Friday. T&Cs and geographical exclusions apply (Republic of Ireland, Northern Ireland, Scottish Highlands, Channel Islands & others) — see our delivery page for full details.
If an item isn't right, sending it back is simple and hassle-free.
Read our returns policy →Our specialist team can advise on tooling choice, specifications and compatibility.
01732 887334 info@protool-ltd.co.uk