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JBO Thread Plug Gauge (Go/NoGo) - NPTF - Right Hand - 2 1/2 x 8
| Thread Form | NPTF |
| Size | 2 1/2 |
| Pitch | 8 |
| Gauge Type | Plug Gauge (Go/NoGo) |
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Description
The JBO Thread Plug Gauge (Go/NoGo) for NPTF, Right Hand, 2 1/2 x 8 is a precision inspection tool designed to verify threaded holes meet established standards. It supports manufacturing, automotive, and aerospace applications by delivering reliable checks of thread conformity and fit.
- Go/No-Go verification: Quickly identify conforming versus non-conforming threads with a clear pass/fail reading, helping inspections move faster and reduce rework.
- Standard-aligned precision: Calibrated to Unified thread standards and NPTF specifications to ensure measurements reflect real-world fits and deliver dependable results.
- Right Hand, 2 1/2 x 8 size: Specifically sized for common threaded-hole applications, offering straightforward use in both production environments and field service.
This plug gauge simplifies quality control by providing repeatable, decisive results that support faster inspections, lower downtime, and more consistent component fitment across critical industries. The Go/No-Go design offers immediate feedback, while the precise sizing ensures reliable checks aligned with industry standards for dependable performance.
Part Numbers
- Protool Part Number
- JBO-517008
- Brand
- JBO
- Category
- Gauge
Need cutting data? Call 01732 887334 or email sales@protool-ltd.co.uk.
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
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 Plug Gauges - NPTF Go/No-Go
View full collection →You are viewing JBO-517008. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Price | Stock | Order |
|---|---|---|---|---|---|
| JBO-512542 | 1/16 | 27 | £183.12 | 5 days | |
| JBO-512545 | 1/8 | 27 | £188.61 | 5 days | |
| JBO-512544 | 1/4 | 18 | £201.76 | 5 days | |
| JBO-512547 | 3/8 | 18 | £218.21 | 5 days | |
| JBO-512543 | 1/2 | 14 | £235.75 | 5 days | |
| JBO-512546 | 3/4 | 14 | £264.27 | 5 days | |
| JBO-512539 | 1 | 11.5 | £304.83 | 5 days | |
| JBO-512541 | 1 1/4 | 11.5 | £367.34 | 5 days | |
| JBO-512540 | 1 1/2 | 11.5 | £416.67 | 5 days | |
| JBO-513622 | 2 | 11.5 | £510.98 | 5 days | |
| JBO-517008 Viewing | 2 1/2 | 8 | £604.17 | 5 days | |
| JBO-517007 | 3 | 8 | £735.76 | 5 days |
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