Socket Head Cap Screw Head Type Standard System of Measurement Metric Drive Type Socket Drive Size 4 mm Material PEEK Material Grade/Class Not Graded Finish Plain Thread Size M8-1.25 Minimum Thread Length 55 mm Fastener Length 55 mm Head Height 7.75 mm Head Diameter 13.25 mm 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