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Asimeto Plug Thread Gauge (Go/NoGo) - Imperial - Right Hand - ASMEB1.20.1-2013 - 3/8 x 18
| Thread Form | NPT |
| Size | 3/8 |
| Pitch | 18 |
| Gauge Type | Plug Gauge (Go/NoGo) |
| Thread Direction | Right Hand |
| Tolerance | ASMEB1.20.1-2013 |
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Asimeto Plug Thread Gauges (Go/NoGo) in Imperial sizes are precision tools for quality-control professionals who verify internal thread accuracy. This right-hand gauge is sized for 3/8 x 18 threads and aligns with ASMEB1.20.1-2013 standards, delivering reliable go/no-go results during inspection and assembly.
- Go/NoGo design: Separate go and no-go elements provide quick, decisive checks of thread depth and tolerance.
- Imperial size: 3/8 x 18 threads, right-hand orientation standard for common internal threads.
- Right-hand threading: Matches the most frequently used internal thread direction in machining and manufacturing.
- 3-step L3 design: Three distinct depth checks ensure comprehensive assessment of thread engagement and clearance.
- Standards compliant: Precisely aligned with ASMEB1.20.1-2013 internal thread specifications for reliable QC.
- Durable, production-ready construction: Built for repeated use in busy workshop environments while maintaining measurement integrity.
This gauge accelerates quality control by providing clear go/no-go results that help you catch undersized or oversized threads before parts move to the next stage. It’s ideal for machining shops, assembly lines, and quality labs where consistent, traceable internal-thread verification is essential. Use it to validate 3/8 x 18 threaded cavities, prevent misfits, and support efficient, repeatable inspections across shifts.
| Thread Form | NPT |
| Size | 3/8 |
| Pitch | 18 |
| Gauge Type | Plug Gauge (Go/NoGo) |
| Thread Direction | Right Hand |
| Tolerance | ASMEB1.20.1-2013 |
| Middle Diameter Size | 0.62701 |
| Gauge Tolerance | ± 0.0002 |
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We also offer the following:
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- 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.
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Full Range: Asimeto Plug Thread Gauges (Go/NoGo) - Imperial - Right Hand - ASMEB1.20.1-2013
View full collection →You are viewing 690-43-1. 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 | £74.85 | In Stock | |
| 690-41-1 | 1/8 | 27 | 0.37360 | ± 0.0002 | £79.64 | 4 weeks | |
| 690-42-1 | 1/4 | 18 | 0.49163 | ± 0.0002 | £91.44 | 4 weeks | |
| 690-43-1 Viewing | 3/8 | 18 | 0.62701 | ± 0.0002 | £101.76 | In Stock | |
| 690-44-1 | 1/2 | 14 | 0.77843 | ± 0.0002 | £114.66 | 4 weeks | |
| 690-45-1 | 3/4 | 14 | 0.98887 | ± 0.0002 | £129.78 | In Stock | |
| 690-46-1 | 1 | 11.5 | 1.23863 | ± 0.0003 | £151.54 | In Stock | |
| 690-47-1 | 1.1/4 | 11.5 | 1.58338 | ± 0.0003 | £212.37 | 4 weeks | |
| 690-48-1 | 1.1/2 | 11.5 | 1.82234 | ± 0.0003 | £240.02 | In Stock | |
| 690-49-1 | 2 | 11.5 | 2.29627 | ± 0.0003 | £256.98 | 4 weeks | |
| 690-50-1 | 2.1/2 | 8 | 2.76216 | ± 0.0004 | £272.46 | 4 weeks | |
| 690-51-1 | 3 | 8 | 3.38850 | ± 0.0004 | £301.59 | 4 weeks |
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