Socket Head Cap Screw Head Type Standard System of Measurement Inch Drive Type Socket Drive Size 1/2 in Material Steel Finish Zinc Plated Thread Size 5/8 In.-11 Minimum Thread Length 1 3/4 in Fastener Length 2 3/4 in Head Height 0.625 in Head Diameter 1 in Pack Size Small Pack Thread Style Partially Threaded Special Features Not Applicable Countersink Angle Not Applicable Dimensional Standards ASME B18.3 Flange Diameter Not Applicable Flange Thickness Not Applicable