ANSI B18.3 Flat Head Socket Cap Screws by Material, Finish and Size

Flat Head Socket Cap Screws are designed to be seated in countersunk holes, and align flush with the surface of the assembly when installed. Flat head socket cap screws have a flat top surface, an indented hex and a conical bearing surface with a head angle of 82°. Flat head socket cap screws are commonly used in machine parts, die fixturing, and clamping.

Search thousands of US/Imperial fasteners by ASME specification, including ASME b18.3 Flat Head Cap Screws, in the FCH Sourcing Network database of first-run, surplus, odd lot, slow-moving and hard to find fasteners.

ASME b18.3 Flat Head Cap Screws by Metric Sizes

Flat Head Cap Screws are available on the FCH Network with metric diameters that range from M20 to M24, and with metric lengths that range from 90mm to 300mm.

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Metric Diameters
Metric Lengths
ASME b18.3 Flat Head Cap Screws by Imperial/ Sizes

Flat Head Cap Screws are available on the FCH Network with imperial diameters that range from #0 to 4, and with lengths that range from 1/8 to 18.

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ASME b18.3 Flat Head Cap Screws by Coatings/Finishes

ASME b18.3 Flat Head Cap Screws are available on the FCH Network in finishes or coatings that range from Plain to Passivated.

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