Hex Head Cap Screw, System of Measurement Metric, Basic Material Steel, Material Grade Class 10.9, Fastener Finish Plain, Dia./Thread Size M39-4.00, 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 90 mm, Head Height 25 mm, Head Width 60 mm