Socket Head Cap Screw, Head Type Flanged Standard, System of Measurement Metric, Drive Type Socket, Drive Size 6 mm, Material Steel, Material Grade/Class Class 12.9, Finish Black Oxide, Thread Size M8-1.25, Minimum Thread Length 20 mm, Fastener Length 20 mm, Head Height 8 mm, Head Diameter 13 mm, Pack Size Small Pack, Thread Style Fully Threaded, Special Features Not Applicable, Countersink Angle Not Applicable, Dimensional Standards DIN 912, Package Quantity 5