Hex Head Cap Screw, System of Measurement Metric, Basic Material Steel, Material Grade Class 8.8, Fastener Finish Plain, Dia./Thread Size M18-2.50, Fastener Length 150 mm, Fastener Thread Direction Right Hand, Fastener Thread Type Metric Coarse, Fastener Thread Style Partially Threaded, Fastener Industry Standards DIN 931, Head Type Hex, Min. Thread Length 48 mm, Head Height 11.5 mm, Head Width 27 mm, Package Quantity 30