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 1 in, Fastener Length 1 in, Head Height 0.625 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