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#4-20 Hex Cap Screws

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.

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Buy Hex Cap Screws from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
SJS ProdCAHex Head Cap ScrewGrade 8Zinc/Yellow#4-20 x 3/4h/h c/s grade 8 1/4-20x 3/4 zinc yellow 96
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