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JBO Thread Ring Gauge (NoGo) - BSW - Right Hand - Medium Class - 1 3/8 x 6
| Thread Form | BSW |
| Size | 1-8 |
| Pitch | 6 |
| Gauge Type | Ring Gauge (NoGo) |
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The ones our customers buy most.Description
The JBO Thread Ring Gauge (NoGo) is a precision tool built to verify external BSW threads. Designed for right-hand, medium-class threads in the 1 3/8 x 6 size, it helps shops and QC labs quickly confirm that threaded components meet the required limits. This gauge supports manufacturers across automotive, aerospace, and general machining by providing a clear, fast assessment of whether a part is within specification.
Manufactured from hardened steel, the gauge delivers durable, repeatable measurements in busy environments. The NoGo design makes non-conforming threads easy to spot, enabling fast decisions in inspection routines and reducing the risk of incorrect fits down the line. It’s a trusted, straightforward tool that supports consistent quality across lots and batches.
- NoGo design for rapid non-conformance checks: The NoGo limit lets operators quickly identify threads that are out of spec, speeding up inspections and reducing rework.
- Hardened steel construction for lasting reliability: Withstood wear from repeated use, maintaining accuracy and long service life in demanding shop or production environments.
- BSW 1 3/8 x 6, right-hand, medium class compatibility: Precisely matches common external threads, enabling consistent cross-checks against components and reducing the need for multiple gauges.
Using the JBO NoGo Thread Ring Gauge helps you streamline quality checks, shorten inspection cycles, and ensure threaded parts fit correctly the first time. Its robust construction supports daily use on busy lines, while the clear NoGo indication minimizes guesswork and speeds return-to-production decisions when parts fail to meet specifications.
Part Numbers
- Protool Part Number
- JBO-501263
- 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) - BSW
View full collection →You are viewing JBO-501263. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-501273 | 1/8 | 40 | £114.03 | 5 days | |
| JBO-501280 | 3/16 | 24 | £84.55 | 5 days | |
| JBO-501272 | 1/4 | 20 | £81.48 | 5 days | |
| JBO-501285 | 5/16 | 18 | £87.84 | 5 days | |
| JBO-501283 | 3/8 | 16 | £92.11 | 5 days | |
| JBO-501288 | 7/16 | 14 | £97.27 | 5 days | |
| JBO-501271 | 1/2 | 12 | £102.86 | 5 days | |
| JBO-501293 | 9/16 | 12 | £115.14 | 5 days | |
| JBO-501287 | 5/8 | 11 | £123.91 | 5 days | |
| JBO-501282 | 3/4 | 10 | £134.87 | 5 days | |
| JBO-501291 | 7/8 | 9 | £156.81 | 5 days | |
| JBO-501266 | 1 1/8 | 7 | £196.27 | 5 days | |
| JBO-501265 | 1 1/4 | 7 | £213.83 | 5 days | |
| JBO-501263 Viewing | 1-8 | 6 | £175.43 | 5 days | |
| JBO-501264 | 1 1/2 | 6 | £256.58 | 5 days | |
| JBO-501268 | 1 3/4 | 5 | £299.34 | 5 days | |
| JBO-501275 | 2 | 4.5 | £343.21 | 5 days |
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