Hex Head Cap Screw, System of Measurement Metric, Basic Material Stainless Steel, Material Grade A4, Fastener Finish Plain, Dia./Thread Size M30-3.50, Fastener Length 180 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 72 mm, Head Height 18.7 mm, Head Width 46 mm