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JBO Thread Ring Gauge (GO) - BSP (G) - Left Hand - Tol. A - 2 3/4 x 11
| Thread Form | BSP (G) |
| Size | 2 3/4 |
| Pitch | 11 |
| Gauge Type | Ring Gauge (GO) |
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Description
The JBO Thread Ring Gauge (GO) is a precision gauge designed to verify external BSP (G) threads. With a size specification of 2 3/4 x 11 and Tol. A, it’s an ideal tool for plumbers, engineers, buyers, technicians, and workshop staff who need reliable, quick confirmation that fittings meet BSP G standards.
- BSP (G) GO accuracy: Quickly determine if external threads conform to BSP (G) standards, enabling fast pass/fail checks and reducing guesswork during assembly or quality audits.
- Left-hand orientation: Configured specifically for left-hand thread applications, ensuring correct gauge fit and efficient inspection in projects with left-handed BSP fittings.
- Precise tolerance and durable construction: Maintains consistent measurements across multiple uses, delivering dependable results in busy workshops and field environments.
Using this gauge helps you accelerate inspections, improve reliability of connections, and maintain high-quality outcomes across plumbing, fluid handling, and engineering applications. Its clear GO indication supports confident decision-making, minimizes downtime, and promotes consistent performance throughout your workflow.
Part Numbers
- Protool Part Number
- JBO-506389
- 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 Gauges (GO) - BSP (G)
View full collection →You are viewing JBO-506389. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-501361 | 1/16 | 28 | £111.84 | 5 days | |
| JBO-501376 | 1/8 | 28 | £58.90 | 5 days | |
| JBO-501371 | 1/4 | 19 | £70.07 | 5 days | |
| JBO-501399 | 3/8 | 19 | £83.11 | 5 days | |
| JBO-501362 | 1/2 | 14 | £95.39 | 5 days | |
| JBO-501408 | 5/8 | 14 | £115.14 | 5 days | |
| JBO-501391 | 3/4 | 14 | £116.23 | 5 days | |
| JBO-501414 | 7/8 | 14 | £150.21 | 5 days | |
| JBO-501337 | 1 | 11 | £141.45 | 5 days | |
| JBO-501358 | 1 1/8 | 11 | £169.96 | 5 days | |
| JBO-501352 | 1 1/4 | 11 | £174.35 | 5 days | |
| JBO-501346 | 1 1/2 | 11 | £196.27 | 5 days | |
| JBO-501359 | 1 3/4 | 11 | £230.28 | 5 days | |
| JBO-501381 | 2 | 11 | £239.05 | 5 days | |
| JBO-501386 | 2 1/4 | 11 | £289.49 | 5 days | |
| JBO-501385 | 2 1/2 | 11 | £326.75 | 5 days | |
| JBO-501388 | 2 3/4 | 11 | £350.89 | 5 days | |
| JBO-501389 | 3 | 11 | £379.41 | 5 days | |
| JBO-501390 | 3 1/2 | 11 | £458.34 | 5 days | |
| JBO-501405 | 4 | 11 | £531.81 | 5 days | |
| JBO-541338 | 4 1/2 | 11 | £702.86 | 5 days | |
| JBO-501407 | 5 | 11 | £804.85 | 5 days | |
| JBO-505329 | 5 1/2 | 11 | £903.54 | 5 days | |
| JBO-501413 | 6 | 11 | £1,005.50 | 5 days | |
| JBO-501377 | 1/8 | 28 | £85.75 | 5 days | |
| JBO-501372 | 1/4 | 19 | £102.53 | 5 days | |
| JBO-501400 | 3/8 | 19 | £121.72 | 5 days | |
| JBO-501363 | 1/2 | 14 | £127.21 | 5 days | |
| JBO-501392 | 3/4 | 14 | £151.32 | 5 days | |
| JBO-501338 | 1 | 11 | £177.65 | 5 days | |
| JBO-501347 | 1 1/2 | 11 | £241.24 | 5 days | |
| JBO-501380 | 1/8 | 28 | £79.07 | 5 days | |
| JBO-501375 | 1/4 | 19 | £94.96 | 5 days | |
| JBO-501404 | 3/8 | 19 | £109.22 | 5 days | |
| JBO-501370 | 1/2 | 14 | £126.10 | 5 days | |
| JBO-501412 | 5/8 | 14 | £150.21 | 5 days | |
| JBO-501398 | 3/4 | 14 | £155.70 | 5 days | |
| JBO-505910 | 7/8 | 14 | £196.27 | 5 days | |
| JBO-501344 | 1 | 11 | £182.03 | 5 days | |
| JBO-505562 | 1 1/8 | 11 | £224.79 | 5 days | |
| JBO-503057 | 1 1/4 | 11 | £228.09 | 5 days | |
| JBO-501351 | 1 1/2 | 11 | £254.39 | 5 days | |
| JBO-506387 | 1 3/4 | 11 | £299.34 | 5 days | |
| JBO-505564 | 2 | 11 | £312.51 | 5 days | |
| JBO-506388 | 2 1/4 | 11 | £377.19 | 5 days | |
| JBO-505565 | 2 1/2 | 11 | £424.36 | 5 days | |
| JBO-506389 Viewing | 2 3/4 | 11 | £458.34 | 5 days | |
| JBO-506390 | 3 | 11 | £493.44 | 5 days |
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