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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

BSF/BSW Hexagon Head Bolt DimensionsBSF/BSW Hexagon Head Bolt Dimensions

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

BSF/BSW Socket Cap Head Screw DimensionsBSF/BSW Socket Cap Head Screw Dimensions

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

BSF/BSW Socket Cap Low Head Screw DimensionsBSF/BSW Socket Cap Low Head Screw Dimensions

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

BSF/BSW Countersunk Button Head Screw DimensionsBSF/BSW Socket Countersunk Head Screw Dimensions

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

BSF/BSW Socket Button Head Screw DimensionsBSF/BSW Socket Button Head Screw Dimensions

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