Socket Head Cap Screw, Head Type Low-Profile Standard, System of Measurement Metric, Drive Type Socket, Drive Size 2.5 mm, Material Steel, Material Grade/Class Class 8, Finish Black Oxide, Thread Size M4-0.7, Minimum Thread Length 14 mm, Fastener Length 20 mm, Head Height 2.8 mm, Head Diameter 7 mm, Pack Size Small Pack, Thread Style Partially Threaded, Special Features Not Applicable, Countersink Angle Not Applicable, Dimensional Standards DIN 7984, Flange Diameter Not Applicable