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JBO Thread Ring Gauge (GO) - BSF - Right Hand - Medium Class - 3/4 x 12
| Thread Form | BSF |
| Size | 3/4 |
| Pitch | 12 |
| Gauge Type | Ring Gauge (GO) |
| Thread Direction | Right Hand |
| Tolerance | Medium Class |
Learn more about Klarna
The JBO Thread Ring Gauge (GO) - BSF is a precision go gauge used to verify external BSF threads. Specifically designed for right-hand, 3/4 x 12 threads in a Medium Class tolerance, it helps inspectors and machinists quickly confirm that a thread diameter falls within the Go limit.
Crafted from hardened steel, this ring gauge stands up to regular use in demanding workshops, providing reliable wear resistance and long service life. Its simple, intuitive design makes it easy to identify conforming threaded components, streamlining quality checks and bolstering confidence in measurement results.
- Exact BSF 3/4 x 12 Right‑Hand GO gauge: Quickly verify external thread diameter against the Go limit, delivering fast, reliable pass/fail results for in‑process inspection.
- Hardened steel, wear‑resistant construction: Built to last in busy environments, resisting nicks and deformation to maintain accuracy over time.
- Medium class tolerance for consistent checks: Delivers repeatable measurements within defined tolerances, supporting dependable quality control across batches.
This gauge helps streamline QC workflows by reducing inspection time, improving consistency in thread production, and giving your team clear guidance on whether components will mate properly in assembly. With its robust build and precise dimensions, the JBO BSF Go gauge supports reliable, repeatable results that you can trust in daily operations.
| Thread Form | BSF |
| Size | 3/4 |
| Pitch | 12 |
| Gauge Type | Ring Gauge (GO) |
| Thread Direction | Right Hand |
| Tolerance | Medium Class |
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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 Gauges (GO) - BSF
View full collection →You are viewing JBO-502499. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-540040 | 3/16 | 32 | £97.75 | 5 days | |
| JBO-520234 | 7/32 | 28 | £105.24 | 5 days | |
| JBO-502498 | 1/4 | 26 | £90.49 | 5 days | |
| JBO-520235 | 9/32 | 26 | £105.24 | 5 days | |
| JBO-502501 | 5/16 | 22 | £94.97 | 5 days | |
| JBO-502500 | 3/8 | 20 | £102.55 | 5 days | |
| JBO-520236 | 7/16 | 18 | £111.09 | 5 days | |
| JBO-502497 | 1/2 | 16 | £113.23 | 5 days | |
| JBO-507251 | 9/16 | 16 | £126.06 | 5 days | |
| JBO-520237 | 5/8 | 14 | £129.26 | 5 days | |
| JBO-520238 | 11/16 | 14 | £157.04 | 5 days | |
| JBO-502499 Viewing | 3/4 | 12 | £146.34 | 5 days | |
| JBO-540035 | 7/8 | 11 | £164.51 | 5 days | |
| JBO-502496 | 1 | 10 | £189.08 | 5 days |
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