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JBO Thread Ring Gauge (GO) - BSW - Right Hand - Medium Class - 1 3/8 x 6
| Thread Form | BSW |
| Size | 1 3/8 |
| Pitch | 6 |
| Gauge Type | Ring Gauge (GO) |
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Description
The JBO Thread Ring Gauge (GO) for BSW right-hand threads is a precision tool designed to verify external thread diameters with confidence. Built for engineers, machinists, inspectors, and workshop teams, it confirms whether a component’s major diameter meets the exact GO tolerance required by BSW standards. Crafted from hardened steel, this gauge delivers durable, long-lasting performance in demanding environments.
- Fast GO verification: Quickly confirms that the external thread major diameter meets the BSW GO tolerance, enabling faster inspection and safer pass/fail decisions.
- Durable hardened steel construction: Built to endure busy workshops, resisting wear and maintaining precise measurements through repeated use.
- Size-specific BSW Right-Hand, 1 3/8 x 6, Medium Class: Designed for exact compatibility with this standard, reducing guesswork and delivering reliable, repeatable results.
Used in quality control and assembly workflows, this GO gauge helps you validate thread conformity with minimal downtime, supporting consistent thread fits across parts and batches. Its rugged build and straightforward operation give teams greater confidence in inspection outcomes and faster decision-making during production and maintenance tasks.
Part Numbers
- Protool Part Number
- JBO-502611
- Brand
- JBO
- Category
- Gauge
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.
Full Range: JBO Thread Ring Gauge (GO) - BSW
View full collection →You are viewing JBO-502611. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-502615 | 1/8 | 40 | £114.03 | 5 days | |
| JBO-502626 | 3/16 | 24 | £84.55 | 5 days | |
| JBO-502614 | 1/4 | 20 | £81.48 | 5 days | |
| JBO-502631 | 5/16 | 18 | £87.84 | 5 days | |
| JBO-502629 | 3/8 | 16 | £92.11 | 5 days | |
| JBO-502635 | 7/16 | 14 | £97.27 | 5 days | |
| JBO-502613 | 1/2 | 12 | £102.86 | 5 days | |
| JBO-502640 | 9/16 | 12 | £115.14 | 5 days | |
| JBO-502633 | 5/8 | 11 | £123.91 | 5 days | |
| JBO-502628 | 3/4 | 10 | £134.87 | 5 days | |
| JBO-502638 | 7/8 | 9 | £156.81 | 5 days | |
| JBO-502606 | 1 | 8 | £175.43 | 5 days | |
| JBO-502608 | 1 1/8 | 7 | £196.27 | 5 days | |
| JBO-503134 | 1 1/4 | 7 | £213.83 | 5 days | |
| JBO-502611 Viewing | 1 3/8 | 6 | £235.75 | 5 days | |
| JBO-503133 | 1 1/2 | 6 | £256.58 | 5 days | |
| JBO-502610 | 1 3/4 | 5 | £299.34 | 5 days | |
| JBO-502619 | 2 | 4.5 | £343.21 | 5 days |
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