Socket Head Cap Screw Head Type Standard System of Measurement Metric Drive Type Socket Drive Size 4 mm Material Steel Material Grade/Class Class 12.9 Finish Black Oxide Thread Size M5-0.8 Minimum Thread Length 12 mm Fastener Length 12 mm Head Height 5 mm Head Diameter 8.5 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