ANSI B18.2.3.1M Metric Specification Hex Head Cap Screw by Material, Finish and Size

Hex Cap Screws are hex headed fasteners with external machine screw threads and differ from hex machine bolts by having a washer surface on the underside or bearing side of the head and a chamfered thread end. Hex cap screws have tighter dimensional tolerances than bolts. Metric hex cap screws are specified by various DIN, ISO and JIS standards, and US/Imperial hex cap screws are dimensionally specified by the ASME B18.2.1 specification.

Search thousands of US/Imperial fasteners by ASME specification, including ASME b18.2.3.1m Hex Cap Screws, in the FCH Sourcing Network database of first-run, surplus, odd lot, slow-moving and hard to find fasteners.

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ASME b18.2.3.1m Hex Cap Screws by Metric Sizes

Hex Cap Screws are available on the FCH Network with metric diameters that range from M10 to M12, and with metric lengths that range from 35mm to 110mm.

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Metric Diameters
Metric Lengths
ASME b18.2.3.1m Hex Cap Screws by Materials

ASME b18.2.3.1m Hex Cap Screws are available on the FCH Network in materials that range from Class 8.8 to Class 8.8.

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ASME b18.2.3.1m Hex Cap Screws by Coatings/Finishes

ASME b18.2.3.1m Hex Cap Screws are available on the FCH Network in finishes or coatings that range from Plain to Zinc/Clear.

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