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Asimeto Plug Thread Gauge (Go/NoGo) - Imperial - Right Hand - ASMEB1.20.1-2013 - 3 x 8
| Thread Form | NPT |
| Size | 3 |
| Pitch | 8 |
| Gauge Type | Plug Gauge (Go/NoGo) |
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Description
Asimeto Plug Thread Gauge (Go/No-Go) in Imperial sizes is a precision tool designed for quality control teams, machinists, and manufacturing engineers who need quick, reliable internal thread verification. This right-hand gauge adheres to ASMEB1.20.1-2013 standards and delivers consistent Go/No-Go checks with a compact, hand-held design.
- Go/No-Go verification: Quickly confirm whether internal threads meet or exceed minimum (Go) and maximum (No-Go) limits in a single measurement.
- Imperial sizes: Built for standard inch-based thread specifications widely used in machining and assembly.
- Right-Hand orientation: Optimized for inspecting right-hand internal threads in a variety of components.
- 3-step L3 design: Three inspection steps provide comprehensive coverage of thread depth and tolerance across the threaded area.
- ASMEB1.20.1-2013 compliant: Meets the official internal-thread gauging standard for consistent, auditable results.
- Durable, precise construction: Robust machining and precision threads ensure reliable performance in busy workshop environments.
- Compact, easy to use: Hand-held gauge that fits neatly into tool kits and QC workflows for rapid checks.
This gauge helps you quickly assess whether internal threads are within spec, reducing rework and waste while supporting consistent quality across parts and assemblies. Ideal for quality inspectors, machinists, and production teams, it integrates smoothly into standard inspection routines and audits, providing dependable results you can trust when validating threaded components.
Part Numbers
- Protool Part Number
- 690-51-1
- Brand
- Asimeto
- 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: Asimeto Plug Thread Gauges (Go/NoGo) - Imperial - Right Hand - ASMEB1.20.1-2013
View full collection →You are viewing 690-51-1. Click any other SKU to view its full details.
| Product SKU | Size | Pitch | Middle Diameter Size | Gauge Tolerance | Price | Stock | Order |
|---|---|---|---|---|---|---|---|
| 690-40-1 | 1/16 | 27 | 0.28118 | ± 0.0002 | £79.43 | In Stock | |
| 690-41-1 | 1/8 | 27 | 0.37360 | ± 0.0002 | £84.51 | 4 weeks | |
| 690-42-1 | 1/4 | 18 | 0.49163 | ± 0.0002 | £97.07 | 4 weeks | |
| 690-43-1 | 3/8 | 18 | 0.62701 | ± 0.0002 | £108.00 | In Stock | |
| 690-44-1 | 1/2 | 14 | 0.77843 | ± 0.0002 | £121.68 | 4 weeks | |
| 690-45-1 | 3/4 | 14 | 0.98887 | ± 0.0002 | £137.75 | In Stock | |
| 690-46-1 | 1 | 11.5 | 1.23863 | ± 0.0003 | £160.83 | In Stock | |
| 690-47-1 | 1.1/4 | 11.5 | 1.58338 | ± 0.0003 | £225.41 | 4 weeks | |
| 690-48-1 | 1.1/2 | 11.5 | 1.82234 | ± 0.0003 | £254.75 | In Stock | |
| 690-49-1 | 2 | 11.5 | 2.29627 | ± 0.0003 | £272.75 | 4 weeks | |
| 690-50-1 | 2.1/2 | 8 | 2.76216 | ± 0.0004 | £289.17 | 4 weeks | |
| 690-51-1 Viewing | 3 | 8 | 3.38850 | ± 0.0004 | £320.09 | 4 weeks |
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