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 40 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 40 mm Head Height 11.5 mm Head Width 27 mm Package Quantity 25