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JBO Thread Ring Gauge (NoGo) - BSP (G) - Right Hand - Tol. A - 1/4 x 19
| Thread Form | BSP (G) |
| Size | 1/4 |
| Pitch | 19 |
| Gauge Type | Ring Gauge (NoGo) |
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Description
The JBO Thread Ring Gauge (NoGo) is a precision inspection tool for external BSP (G) threads. It helps plumbers, engineers, buyers, and inspectors verify that fittings will seal and fit correctly. Designed for 1/4 x 19 right-hand BSP (G) threads with Tol. A, this gauge provides fast, reliable checks in tight spaces and on crowded workbenches.
With its NoGo design, it makes it easy to spot non-conforming threads during assembly, quality control, or incoming inspection—preventing leaks, mismatches, and costly rework.
- No-Go verification design: Quickly identify non-conforming BSP (G) threads, enabling immediate pass/fail decisions and reducing rework and leakage risk.
- Precise BSP (G) standard matching: Engineered to measure external thread diameter to BSP (G) tolerances, delivering consistent, reliable checks across jobs and operators.
- Right-hand 1/4 x 19 sizing with Tol. A: Specifically calibrated for the 1/4 x 19 BSP (G) right-hand thread, ensuring proper fit checks and smooth integration with standard fittings.
Using the JBO Thread Ring Gauge (NoGo) helps streamline inspections, speeding up commissioning and safeguarding sealing performance. Its precise tolerances reduce doubt during fitting selection, while the durable design stands up to daily workshop or field use. By confirming thread conformity early, you minimize downtime and improve overall workflow efficiency.
Part Numbers
- Protool Part Number
- JBO-500077
- 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 (NoGo) - BSP (G)
View full collection →You are viewing JBO-500077. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-500066 | 1/16 | 28 | £111.84 | 5 days | |
| JBO-500083 | 1/8 | 28 | £58.90 | 5 days | |
| JBO-500077 Viewing | 1/4 | 19 | £70.07 | 5 days | |
| JBO-500104 | 3/8 | 19 | £83.11 | 5 days | |
| JBO-500067 | 1/2 | 14 | £95.39 | 5 days | |
| JBO-500112 | 5/8 | 14 | £115.14 | 5 days | |
| JBO-500098 | 3/4 | 14 | £116.23 | 5 days | |
| JBO-500117 | 7/8 | 14 | £150.21 | 5 days | |
| JBO-500043 | 1 | 11 | £141.45 | 5 days | |
| JBO-500063 | 1 1/8 | 11 | £169.96 | 5 days | |
| JBO-500056 | 1 1/4 | 11 | £174.35 | 5 days | |
| JBO-500052 | 1 1/2 | 11 | £196.27 | 5 days | |
| JBO-500064 | 1 3/4 | 11 | £230.28 | 5 days | |
| JBO-500087 | 2 | 11 | £239.05 | 5 days | |
| JBO-500092 | 2 1/4 | 11 | £289.49 | 5 days | |
| JBO-500090 | 2 1/2 | 11 | £326.75 | 5 days | |
| JBO-500094 | 2 3/4 | 11 | £350.89 | 5 days | |
| JBO-500096 | 3 | 11 | £379.41 | 5 days | |
| JBO-500097 | 3 1/2 | 11 | £458.34 | 5 days | |
| JBO-500110 | 4 | 11 | £531.81 | 5 days | |
| JBO-540586 | 4 1/2 | 11 | £702.86 | 5 days | |
| JBO-540587 | 5 | 11 | £804.85 | 5 days | |
| JBO-505330 | 5 1/2 | 11 | £903.54 | 5 days | |
| JBO-540590 | 6 | 11 | £1,005.50 | 5 days | |
| JBO-500084 | 1/8 | 28 | £223.68 | 5 days | |
| JBO-500078 | 1/4 | 19 | £259.88 | 5 days | |
| JBO-500105 | 3/8 | 19 | £299.34 | 5 days | |
| JBO-500068 | 1/2 | 14 | £270.84 | 5 days | |
| JBO-500099 | 3/4 | 14 | £289.49 | 5 days | |
| JBO-500044 | 1 | 11 | £321.28 | 5 days | |
| JBO-503042 | 1 1/2 | 11 | £411.20 | 5 days | |
| JBO-500086 | 1/8 | 28 | £79.07 | 5 days | |
| JBO-500082 | 1/4 | 19 | £94.96 | 5 days | |
| JBO-500076 | 1/2 | 14 | £126.10 | 5 days | |
| JBO-500116 | 5/8 | 14 | £150.21 | 5 days | |
| JBO-500103 | 3/4 | 14 | £155.70 | 5 days | |
| JBO-505911 | 7/8 | 14 | £196.27 | 5 days | |
| JBO-500050 | 1 | 11 | £182.03 | 5 days | |
| JBO-506393 | 1 1/8 | 11 | £224.79 | 5 days | |
| JBO-503056 | 1 1/4 | 11 | £228.09 | 5 days | |
| JBO-505430 | 1 1/2 | 11 | £254.39 | 5 days | |
| JBO-506394 | 1 3/4 | 11 | £299.34 | 5 days | |
| JBO-505432 | 2 | 11 | £312.51 | 5 days | |
| JBO-506395 | 2 1/4 | 11 | £377.19 | 5 days | |
| JBO-505433 | 2 1/2 | 11 | £424.36 | 5 days | |
| JBO-506396 | 2 3/4 | 11 | £458.34 | 5 days | |
| JBO-506397 | 3 | 11 | £493.44 | 5 days |
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