Bolt-Spanner Tricks

A presentation on bolt to spanner conversion tricks.

1. Bolt to Spanner Conversion Tricks Presentation By Rahmat Ullah B. Tech. (E.I.E)

2. Contents Definition Bolt Size to Spanner Size Conversion Bolt Size to Allen Key Size Conversion

3. Spanner (Wrench): A  wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects usually rotary fasteners, such as nuts and  bolts or keep them from turning . A steel hand tool with a handle carrying jaws or a hole of particular shape designed to grip a nut or bolt head. Definition

4. Bolt Size (mm) Formula Spanner Size (mm) ANSI/ISO M3 B.S * 1.5 + 0.5 5 M5 B.S * 1.5 + 0.5 8 M7 B.S * 1.5 + 0.5 11 M4 B.S * 1.5 + 1 7 M6 B.S * 1.5 + 1 10 M8 B.S * 1.5 + 1 13 M10 B.S * 1.5 + 2 17 M12 B.S * 1.5 + 1 19 M14 B.S * 1.5 + 1 22 M16 B.S * 1.5 24 M18 B.S * 1.5 27 M20 B.S * 1.5 30 Bolt Size to Spanner Size Conversion

5. Bolt Size (mm) Formula Allen Key Size (mm) ANSI/ISO M2 B.S - 0.5 1.5 M3 B.S - 0.5 2.5 M4 B.S - 1 3 M5 B.S - 1 4 M6 B.S - 1 5 M8 B.S - 2 6 M10 B.S - 2 8 M12 B.S - 2 10 M14 B.S - 2 12 M16 B.S - 2 14 Bolt Size to Allen Key Size Conversion

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