Hex Head Cap Screw, System of Measurement Metric, Basic Material Steel, Material Grade Class 10.9, Fastener Finish Plain, Dia./Thread Size M18-2.50, Fastener Length 50 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 50 mm, Head Height 11.5 mm, Head Width 27 mm, Package Quantity 50