Socket Head Cap Screw Head Type Button System of Measurement Metric Drive Type Socket Drive Size 4 mm Material Steel Material Grade/Class Class 10.9 Finish Black Oxide Thread Size M5-0.8 Minimum Thread Length 8 mm Fastener Length 8 mm Head Height 2.75 mm Head Diameter 9.5 mm Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle Not Applicable Dimensional Standards ISO 7380-1 Flange Diameter Not Applicable