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JBO Thread Ring Gauge (GO) - BSP (G) - Left Hand - Tol. A - 1 3/4 x 11
| Thread Form | BSP (G) |
| Size | 1 3/4 |
| Pitch | 11 |
| Gauge Type | Ring Gauge (GO) |
| Thread Direction | Left Hand |
| Tolerance | Tol. A |
Learn more about Klarna
The JBO Thread Ring Gauge (GO) - BSP (G) - Left Hand - Tol. A - 1 3/4 x 11 is a precision go gauge designed to verify external BSP (G) thread diameters. It’s a practical tool for plumbers, engineers, inspectors, and maintenance teams, delivering a fast, reliable check of thread conformance to BSP standards with Tol. A tolerance that ensures consistent measurements for reliable fits and seals.
- Go gauge for BSP (G) threads: Instantly confirms proper conformance on external BSP G threads, speeding inspections and reducing rework.
- Left-hand BSP thread support (Tol. A): Specifically designed for left-hand BSP threads and built to Tol. A accuracy to ensure precise diameter verification across fittings.
- Rugged, easy-grip construction: Knurled outer surface and durable metal deliver secure handling and long service life in busy workshops and field environments.
By using the JBO Thread Ring Gauge, you streamline inspections, reduce rework, and improve confidence in every BSP (G) connection. The Go design quickly confirms conformance, while the left-hand compatibility ensures accurate checks on non-standard fittings. Durable construction supports reliable performance in busy workshops, field service, or QC labs, helping you speed installs, ensure leak-free seals, and maintain consistent quality across projects.
| Thread Form | BSP (G) |
| Size | 1 3/4 |
| Pitch | 11 |
| Gauge Type | Ring Gauge (GO) |
| Thread Direction | Left Hand |
| Tolerance | Tol. A |
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-506387. 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 Viewing | 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 | 2 3/4 | 11 | £458.34 | 5 days | |
| JBO-506390 | 3 | 11 | £493.44 | 5 days |
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