Hex Head Cap Screw, System of Measurement Inch, Basic Material Nylon, Material Grade Not Graded, Fastener Finish Plain, Dia./Thread Size 5/16 In.-18, Fastener Length 2 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), Fastener Thread Style Partially Threaded, Fastener Industry Standards ANSI/ASME B1.1 1982, Head Type Slotted Hex, Min. Thread Length 7/8 in, Head Height 15/64 in, Head Width 1/2 in, Package Quantity 10