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JBO Plug Gauge - UNF (STI) Heli Coil Gauge - Right Hand - 2B - 7/16 x 20 - Calibrated (DAkkS Calibration)
| Thread Form | UNF (STI) |
| Size | 7/16 |
| Pitch | 20 |
| Gauge Type | Plug Gauge (D/E) |
| Thread Direction | Right Hand |
| Tolerance | 2B |
Learn more about Klarna
The JBO Plug Gauge for UNF (STI) Right Hand, 2B, 7/16 x 20, Calibrated (DAkkS Calibration) is a precision measuring tool designed to verify the pitch diameter and fit of UNF Helicoil inserts. Manufactured and assessed to ANSI/ASME thread standards, this gauge helps ensure your UNF STI inserts seat correctly and perform reliably in critical assemblies across manufacturing, automotive, and aerospace applications.
Built for demanding shop environments, this calibrated plug gauge provides traceable, DAkkS-listed accuracy for quality-control records and audits, giving you confidence during inspections and supplier verifications.
- DAkkS-calibrated, traceable measurement: guarantees official calibration reference for your quality data and audit trails, reducing ambiguity in fit verification.
- UNF (STI) right-hand compatibility, 7/16 x 20 sizing: precisely tests pitch diameter and seating of UNF Helicoil inserts, enabling fast, confident acceptance decisions in production.
- Durable, user-friendly construction: robust metal body with a knurled grip and color-coded ends delivers long life in busy environments and quick orientation during setup.
Using the JBO Plug Gauge accelerates inspections, minimizes guesswork in insert seating, and helps you maintain consistent, reliable results across batches. Its durability and traceability support smooth QA workflows, reduced downtime, and increased confidence in every threaded-insert application.
| Thread Form | UNF (STI) |
| Size | 7/16 |
| Pitch | 20 |
| 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-513343. 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 | 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 Viewing | 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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