Socket Flat Head Screw Head Type Flat System of Measurement Metric Drive Type Socket Drive Size 3 mm Material Steel Material Grade/Class Class 10.9 Finish Black Oxide Thread Size M5-0.8 Minimum Thread Length 16 mm Fastener Length 50 mm Head Height 3.1 mm Head Diameter 11.2 mm Pack Size Small Pack Thread Style Partially Threaded Special Features Not Applicable Countersink Angle 90 Degrees Dimensional Standards ASME B18.3 Flange Diameter Not Applicable