Please log in here to access all benefits, including promotional discounts and faster checkouts.
JBO Plug Gauge - UNC (STI) Heli Coil Gauge - Right Hand - 2B - No. 12 x 24 - Calibrated (DAkkS Calibration)
| Thread Form | UNC (STI) |
| Size | No. 12 |
| Pitch | 24 |
| Gauge Type | Plug Gauge (D/E) |
| Thread Direction | Right Hand |
| Tolerance | 2B |
Learn more about Klarna
The JBO Plug Gauge - UNC (STI) Right Hand - 2B - No. 12 x 24 is a calibrated plug gauge designed to inspect UNC thread inserts (STIs). Built to ANSI/ASME standards, it provides precise pitch-diameter measurements to verify that inserts meet UNC STI specifications.
Designed for manufacturing, automotive, and aerospace environments, this tool supports efficient QA checks, reduces rework, and helps maintain consistent performance across assemblies.
- DAkkS-calibrated, traceable accuracy: Ensures measurement results are auditable and accepted in quality systems, with calibration documentation for traceability.
- UNC (STI) compatibility for precise pitch-diameter checks: Accurately verify the fit and function of screw-thread inserts, preventing misfits and binding in assemblies.
- Rugged, user-friendly design for reliable use: Durable construction with knurled grip and robust ends enables repeatable checks in busy production environments, reducing downtime.
This plug gauge helps you make confident, repeatable inspections, streamlining quality control and ensuring every UNC STI insert performs as intended. With 2B tolerance and Right-Hand orientation, you’ll achieve consistent results across batches, while the DAkkS calibration provides the traceability required for audits and ISO-compliant workflows.
| Thread Form | UNC (STI) |
| Size | No. 12 |
| Pitch | 24 |
| 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-512688. 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 Viewing | 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 | 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 |
No products match your filters.
