Socket Head Cap Screw Head Type Button System of Measurement Inch Drive Type Socket Drive Size 3/8 in Material Steel Finish Black Oxide Thread Size 5/8 In.-11 Minimum Thread Length 2 in Fastener Length 2 in Head Height 0.331 in Head Diameter 1 in Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle Not Applicable Dimensional Standards ASME B18.3 Flange Diameter Not Applicable Flange Thickness Not Applicable