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JBO Thread Ring Gauge (NoGo) - BSF - Right Hand - Medium Class - 1/4 x 26
| Thread Form | BSF |
| Size | 1/4 |
| Pitch | 26 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Right Hand |
| Tolerance | Medium Class |
Learn more about Klarna
The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed for checking external BSF threads on 1/4 x 26 right-hand parts. It supports engineers, machinists, quality inspectors, and assembly teams across manufacturing, automotive, and aerospace sectors by delivering fast, reliable verification of thread fit and conformity.
Featuring a NoGo design, this gauge makes it easy to spot out-of-spec threads during routine quality checks, inbound inspection, or in-process assembly, helping prevent misfits and costly rework. Crafted from hardened steel, it stands up to regular use in busy shops while maintaining dimensional accuracy.
- Immediate Go/No-Go Indication: The no-go design provides rapid, unambiguous detection of out-of-spec threads, enabling quick pass/fail decisions and reducing inspection time.
- Exact BSF 1/4 x 26 Right-Hand, Medium Class Sizing: Precisely matched to the target thread size and class, ensuring reliable checks and consistent results that align with standard specifications.
- Durable Hardened Steel Construction: Built to withstand daily use in demanding environments, resisting wear and maintaining accuracy over many inspections.
This gauge helps technicians accelerate thread inspections, improve part-fit confidence, and keep production flowing. By providing a clear, dependable check for 1/4 x 26 BSF right-hand threads, it supports better quality control, reduced downtime, and more consistent threaded assemblies across your operations.
| Thread Form | BSF |
| Size | 1/4 |
| Pitch | 26 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Right Hand |
| Tolerance | Medium Class |
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) - BSF
View full collection →You are viewing JBO-501168. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-520239 | 3/16 | 32 | £100.34 | 5 days | |
| JBO-520240 | 7/32 | 28 | £108.02 | 5 days | |
| JBO-501168 Viewing | 1/4 | 26 | £92.89 | 5 days | |
| JBO-520241 | 9/32 | 26 | £108.02 | 5 days | |
| JBO-501170 | 5/16 | 22 | £97.49 | 5 days | |
| JBO-501169 | 3/8 | 20 | £105.26 | 5 days | |
| JBO-520242 | 7/16 | 18 | £114.03 | 5 days | |
| JBO-501167 | 1/2 | 16 | £116.23 | 5 days | |
| JBO-507252 | 9/16 | 16 | £129.40 | 5 days | |
| JBO-520243 | 5/8 | 14 | £132.68 | 5 days | |
| JBO-520244 | 11/16 | 14 | £161.19 | 5 days | |
| JBO-505546 | 3/4 | 12 | £150.21 | 5 days | |
| JBO-540017 | 7/8 | 11 | £168.86 | 5 days | |
| JBO-501166 | 1 | 10 | £194.08 | 5 days |
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