如何计算Screw Thread Converter
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Screw thread converters translate between different thread designations: UNC, UNF, metric (M), BSW, etc.
公式
Inch: #10-24 UNC = 10 size, 24 threads/inch
- UNC
- 10 size — 10 size
分步指南
- 1Metric: M10 = 10 mm diameter, coarse (1.5 mm pitch) or fine (1.25 mm)
- 2Inch: #10-24 UNC = 10 size, 24 threads/inch
- 3Non-interchangeable between systems (need washers, adapters)
例题解析
输入
M8 metric thread
结果
8 mm diameter, UNC equivalent #5-40, similar size
Not exactly interchangeable
常见错误注意事项
- ✕Assuming metric and inch are compatible (they're not)
- ✕Not checking thread pitch (critical for alignment)
常见问题
Can metric and inch threads be used interchangeably?
No, slightly different pitch and angle. Using wrong thread can damage equipment.
What's the difference between coarse and fine pitch?
Fine pitch holds tighter, suits thin walls, vibration-resistant. Coarse easier to assemble, stronger.
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