Please log in here to access all benefits, including promotional discounts and faster checkouts.
JBO Thread Ring Gauge (GO) - BSP (G) - Right Hand - Tol. A - 4 1/2 x 11
| Thread Form | BSP (G) |
| Size | 4 1/2 |
| Pitch | 11 |
| Gauge Type | Ring Gauge (GO) |
Learn more about Klarna
Compatible certification
The ones our customers buy most.
Description
The JBO Thread Ring Gauge (GO) for BSP (G) Right Hand, Tol. A, 4 1/2 x 11 is a precision inspection tool designed for plumbing, fluid handling, and engineering applications. It rapidly verifies external BSP G threads to ensure fittings will thread correctly and seal reliably. Designed for repeatable quality checks, its Go design makes it easy to identify compliant threads at a glance, helping reduce guesswork and rework in production and repair work.
- BSP (G) Go Gauge for fast, go/no-go inspection: Quickly confirms external threads meet BSP G specifications, enabling reliable pass/fail decisions and speeding up QC.
- Right-hand orientation with Tol. A: Consistent measurements across batches and setups, delivering repeatable results in daily use.
- Rugged, precision‑machined design: Built to withstand busy workshop and field environments while maintaining accurate measurements over time.
This gauge helps you ensure proper fit and sealing—saving time during assembly, reducing rework, and improving overall quality of threaded connections across plumbing, fluid handling, and engineering projects.
Part Numbers
- Protool Part Number
- JBO-541338
- 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-541338. 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 Viewing | 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 | 2 3/4 | 11 | £458.34 | 5 days | |
| JBO-506390 | 3 | 11 | £493.44 | 5 days |
No products match your filters.
