[object Object]Engineering Information, Conversions and Calculations

Imperial Bolt Dimensions

The charts below gives the dimensions for Hexagon Head, Socket Cap,Socket Cap - Low Head, Socket Countersink and Socket Button screws with British Standard Whitworth and British Standard Fine Threads.

Dimensions shown are in Inches, if you wish to convert to mm, please use our universal converter.

We also have information on Metric and UnifiedBolts.

HEXAGON HEAD DIMENSIONS - BSW + BSF - BS916:1953

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SOCKET CAP SCREW DIMENSIONS - BSW + BSF - BS2470:1973

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SOCKET CAP LOW HEAD SCREW DIMENSIONS - BSW + BSF - BS 2470:1973

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SOCKET COUNTERSINK SCREW DIMENSIONS - BSW + BSF - BS 2470:1973

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SOCKET BUTTON SCREW DIMENSIONS - BSW + BSF - BS 2470:1973

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