Please log in here to access all benefits, including promotional discounts and faster checkouts.

JBO Thread Ring Gauge (GO) - Pg - Right Hand - Pg 13.5 x 18
| Thread Form | Pg |
| Size | Pg 13.5 |
| Pitch | 18 |
| Gauge Type | Ring Gauge (GO) |
| Thread Direction | Right Hand |
| Tolerance | N/A |
Learn more about Klarna
The JBO Thread Ring Gauge (GO) - Pg is a precision tool for quickly verifying external thread diameters across a range of industries, from manufacturing to maintenance and quality control. Sized as Pg 13.5 x 18 and configured for Right Hand threading, this GO gauge helps inspectors confirm that parts meet the required thread standards with clear, actionable results.
Crafted from hardened steel, the gauge delivers durable, wear-resistant performance in demanding workshop environments. Its simple, intuitive design makes it easy to identify conforming threaded components at a glance, supporting fast, reliable inspections and reducing the chance of misreads during QC checks.
- Precise GO verification for external threads: Quick pass/fail checks on external thread diameters at Pg 13.5 x 18, helping you confirm compliance with minimal handling and rework.
- Durable hardened steel construction: Built to endure daily use in workshops, resisting wear and corrosion to keep measurements stable over time.
- User-friendly right-hand GO configuration: Intuitively oriented for fast identification of conforming parts, reducing inspection time and training effort.
Using the JBO Thread Ring Gauge (GO) - Pg helps you streamline quality control, enabling consistent thread quality across components, reducing downtime, and giving your team confidence in every measurement.
| Thread Form | Pg |
| Size | Pg 13.5 |
| Pitch | 18 |
| Gauge Type | Ring Gauge (GO) |
| 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 (GO) - Pg
View full collection →You are viewing JBO-502486. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-502493 | Pg 7 | 20 | £112.95 | 5 days | |
| JBO-502494 | Pg 9 | 18 | £123.91 | 5 days | |
| JBO-502485 | Pg 11 | 18 | £133.78 | 5 days | |
| JBO-502486 Viewing | Pg 13.5 | 18 | £144.74 | 5 days | |
| JBO-502487 | Pg 16 | 18 | £153.51 | 5 days | |
| JBO-502488 | Pg 21 | 16 | £184.22 | 5 days | |
| JBO-502489 | Pg 29 | 16 | £236.85 | 5 days | |
| JBO-502490 | Pg 36 | 16 | £290.57 | 5 days | |
| JBO-502491 | Pg 42 | 16 | £330.05 | 5 days | |
| JBO-502492 | Pg 48 | 16 | £360.76 | 5 days |
No products match your filters.


