Socket Head Cap Screw Head Type Button System of Measurement Metric Drive Type Socket Drive Size 8 mm Material Steel Material Grade/Class Class 10.9 Finish Black Oxide Thread Size M10-1.5 Minimum Thread Length 20 mm Fastener Length 20 mm Head Height 5.5 mm Head Diameter 17.5 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