Socket Flat Head Screw Head Type Flat System of Measurement Metric Drive Type Socket Drive Size 4 mm Material Stainless Steel Material Grade/Class 18-8 Finish Plain Thread Size M6-1 Minimum Thread Length 20 mm Fastener Length 20 mm Head Height 3.72 mm Head Diameter 13.44 mm Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle 90 Degrees Dimensional Standards ISO 10642 Flange Diameter Not Applicable Flange Thickness Not Applicable