Socket Flat Head Screw Head Type Flat System of Measurement Metric Drive Type Socket Drive Size 10 mm Material Steel Material Grade/Class Class 10.9 Finish Black Oxide Thread Size M16-2 Minimum Thread Length 25 mm Fastener Length 25 mm Head Height 7.5 mm Head Diameter 30 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