Machine Screw Head Type Hex Material Nylon Finish Plain Drive External Hex Thread Size #10-32 Fastener Length 1/2 in Head Width 0.313 in Head Height 0.109 in Drive Size 5/16 in Tensile Strength 165 psi Pack Size Small Minimum Thread Length 1/2 in Type Standard Machine Screw Washer Outside Diameter Not Applicable Washer Thickness Not Applicable Maximum Head Width 0.313 in Minimum Head Width 0.312 in Maximum Head Height 0.109 in Minimum Head Height 0.112 in