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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

ステップバイステップガイド

  1. 1Metric: M10 = 10 mm diameter, coarse (1.5 mm pitch) or fine (1.25 mm)
  2. 2Inch: #10-24 UNC = 10 size, 24 threads/inch
  3. 3Non-interchangeable between systems (need washers, adapters)

解いた例

入力
M8 metric thread
結果
8 mm diameter, UNC equivalent #5-40, similar size
Not exactly interchangeable

避けるべきよくある間違い

  • Assuming metric and inch are compatible (they're not)
  • Not checking thread pitch (critical for alignment)

よくある質問

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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