Socket Head Cap Screw Head Type Standard System of Measurement Metric Drive Type Socket Drive Size 2.5 mm Material Steel Material Grade/Class Class 12.9 Finish Black Oxide Thread Size M3-0.5 Minimum Thread Length 18 mm Fastener Length 25 mm Head Height 3 mm Head Diameter 5.5 mm Pack Size Small Pack Thread Style Partially Threaded Special Features Not Applicable Countersink Angle Not Applicable Dimensional Standards DIN 912 Flange Diameter Not Applicable