Socket Head Cap Screw Head Type Standard System of Measurement Metric Drive Type Socket Drive Size 1.5 mm Material Steel Material Grade/Class Class 12.9 Finish Black Oxide Thread Size M2-0.4 Minimum Thread Length 20 mm Fastener Length 20 mm Head Height 2 mm Head Diameter 3.8 mm Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle Not Applicable Dimensional Standards DIN 912 Flange Diameter Not Applicable