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JBO Plug Gauge - UNC (STI) Heli Coil Gauge - Right Hand - 2B - 5/8 x 11 - Calibrated (DAkkS Calibration)
| Thread Form | UNC (STI) |
| Size | 5/8 |
| Pitch | 11 |
| Gauge Type | Plug Gauge (D/E) |
| Thread Direction | Right Hand |
| Tolerance | 2B |
Learn more about Klarna
The JBO Plug Gauge for UNC (STI) is a Right Hand, 2B, 5/8 x 11 calibrated gauge designed for precise inspection of UNC thread inserts (STIs). It helps technicians, buyers, and engineers verify pitch diameter and thread form to ensure UNC STI inserts will assemble correctly and perform reliably in manufacturing, automotive, and aerospace applications.
- DAkkS-calibrated and traceable: Provides verified, repeatable measurements with documentation suitable for QA records and supplier audits.
- ANSI/ASME UNC (STI) compliant design: Specifically built to UNC STI standards, ensuring consistent inspection criteria and reliable pass/fail decisions.
- Direct pitch diameter verification: Enables quick, accurate assessment of the critical dimension that governs fit and performance of threaded inserts.
Across production and inspection workflows, this gauge streamlines quality checks, reduces guesswork, and supports compliant reporting. Its calibrated accuracy gives you confidence in every measurement, helping to minimize downtime, improve first-pass results, and maintain consistent part quality from receipt through final assembly.
| Thread Form | UNC (STI) |
| Size | 5/8 |
| Pitch | 11 |
| Gauge Type | Plug Gauge (D/E) |
| Thread Direction | Right Hand |
| Tolerance | 2B |
| Calibration | DAkkS Calibration Cert |
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 Plug Gauge UNC Heli Coil - Right Hand - 3B - Calibrated (DAkkS Calibration)
View full collection →You are viewing JBO-512704. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-512689 | No. 2 | 56 | £167.77 | 5 days | |
| JBO-512692 | No. 4 | 40 | £151.32 | 5 days | |
| JBO-512694 | No. 5 | 40 | £150.21 | 5 days | |
| JBO-512695 | No. 6 | 32 | £134.87 | 5 days | |
| JBO-512697 | No. 8 | 32 | £127.21 | 5 days | |
| JBO-512687 | No. 10 | 24 | £124.99 | 5 days | |
| JBO-512688 | No. 12 | 24 | £141.45 | 5 days | |
| JBO-512700 | 1/4 | 20 | £124.99 | 5 days | |
| JBO-512703 | 5/16 | 18 | £134.87 | 5 days | |
| JBO-512702 | 3/8 | 16 | £149.13 | 5 days | |
| JBO-512699 | 1/2 | 13 | £243.43 | 5 days | |
| JBO-512704 Viewing | 5/8 | 11 | £256.58 | 5 days | |
| JBO-513095 | No. 4 | 48 | £164.47 | 5 days | |
| JBO-512707 | No. 6 | 40 | £143.64 | 5 days | |
| JBO-512709 | No. 8 | 36 | £132.68 | 5 days | |
| JBO-512705 | No. 10 | 32 | £124.99 | 5 days | |
| JBO-512712 | 1/4 | 28 | £124.99 | 5 days | |
| JBO-512716 | 5/16 | 24 | £134.87 | 5 days | |
| JBO-512715 | 3/8 | 24 | £149.13 | 5 days | |
| JBO-513343 | 7/16 | 20 | £184.22 | 5 days | |
| JBO-512711 | 1/2 | 20 | £243.43 | 5 days | |
| JBO-512718 | 5/8 | 18 | £253.31 | 5 days | |
| JBO-512693 | No. 4 | 40 | £235.75 | 5 days | |
| JBO-512696 | No. 6 | 32 | £211.63 | 5 days | |
| JBO-512698 | No. 8 | 32 | £200.65 | 5 days | |
| JBO-512706 | No. 10 | 32 | £196.27 | 5 days | |
| JBO-512713 | 1/4 | 28 | £196.27 | 5 days | |
| JBO-512717 | UNF (STI) | 5/16 | £212.72 | 5 days |
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