Socket Flat Head Screw Head Type Flat System of Measurement Metric Drive Type Socket Drive Size 2.5 mm Material Stainless Steel Material Grade/Class 316 Finish Plain Thread Size M4-0.7 Minimum Thread Length 8 mm Fastener Length 8 mm Head Height 2.48 mm Head Diameter 8.96 mm Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle 90 Degrees Dimensional Standards DIN 7991 Flange Diameter Not Applicable Flange Thickness Not Applicable