Hex Head Cap Screw System of Measurement Metric Basic Material Stainless Steel Material Grade A4 Fastener Finish Plain Dia./Thread Size M4-0.70 Fastener Length 20 mm Fastener Thread Direction Right Hand Fastener Thread Type Metric Coarse Fastener Thread Style Fully Threaded Fastener Industry Standards DIN 933 Head Type Hex Min Thread Length 20 mm Head Height 2.8 mm Head Width 7 mm Package Quantity 50