Hex Head Cap Screw, System of Measurement Metric, Basic Material Steel, Material Grade Class 8.8, Fastener Finish Zinc Yellow, Dia./Thread Size M20-2.50, Fastener Length 40 mm, Fastener Thread Direction Right Hand, Fastener Thread Type Metric Coarse, Fastener Thread Style Fully Threaded, Fastener Industry Standards DIN 933, ISO 4017, Head Type Hex, Min. Thread Length 40 mm, Head Height 12.5 mm, Head Width 30 mm, Package Quantity 10