Socket Head Cap Screw Head Type Standard System of Measurement Metric Drive Type Socket Drive Size 3 mm Material Steel Finish Blue Phosphate Thread Size M4-0.7 Minimum Thread Length 8 mm Fastener Length 8 mm Head Height 4 mm Head Diameter 7 mm Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle Not Applicable Dimensional Standards ASME B18.3 Flange Diameter Not Applicable Flange Thickness Not Applicable