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JBO Thread Ring Gauge (NoGo) - Pg - Right Hand - Pg 21 x 16
| Thread Form | Pg |
| Size | Pg 21 |
| Pitch | 16 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Right Hand |
| Tolerance | N/A |
Learn more about Klarna
JBO Thread Ring Gauge (NoGo) — Right Hand, Pg 21 x 16 — is a precision tool designed to quickly validate external thread diameters against Unified thread standards. It is ideal for manufacturing, automotive, aerospace, and maintenance environments where reliable fit and function matter, providing a clear go/no-go indication to separate compliant parts from those that fall outside tolerance.
- No-Go design for rapid pass/fail checks: Quickly identifies non-conforming threads to prevent incorrect assemblies and reduce rework, helping you make swift, informed quality decisions.
- Durable hardened steel construction: Built for everyday workshop use with excellent wear resistance, long service life, and easy cleaning to maintain consistent measurement accuracy.
- Standardized right-hand threading, Pg 21 x 16 sizing: Calibrated to common Unified thread forms, enabling reliable, repeatable checks and easy cross‑checking with other gauges and calibration routines.
Incorporating this gauge into your inspection workflow delivers faster verification, tighter quality control, and more consistent results across parts and teams, giving technicians and managers confidence that threaded components will fit and function as intended.
| Thread Form | Pg |
| Size | Pg 21 |
| Pitch | 16 |
| Gauge Type | Ring Gauge (NoGo) |
| Thread Direction | Right Hand |
| Tolerance | N/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 (NoGo) - Pg
View full collection →You are viewing JBO-501159. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-501164 | Pg 7 | 20 | £49.90 | 5 days | |
| JBO-501156 | Pg 11 | 18 | £58.34 | 5 days | |
| JBO-501157 | Pg 13.5 | 18 | £60.86 | 5 days | |
| JBO-501158 | Pg 16 | 18 | £63.28 | 5 days | |
| JBO-501159 Viewing | Pg 21 | 16 | £66.89 | 5 days | |
| JBO-501160 | Pg 29 | 16 | £69.65 | 5 days | |
| JBO-501161 | Pg 36 | 16 | £79.73 | 5 days | |
| JBO-501162 | Pg 42 | 16 | £98.47 | 5 days | |
| JBO-501163 | Pg 48 | 16 | £104.82 | 5 days |
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