'Hex Head Cap Screw, System of Measurement Inch, Basic Material Nylon, Material Grade Not Graded, Fastener Finish Plain, Dia./Thread Size 5/8 In.-11, Fastener Length 1/2 In., Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), Fastener Thread Style Fully Threaded, Fastener Industry Standards ANSI/ASME B1.1 1982, Head Type Hex, Min. Thread Length 1/2 In., Head Height 7/16 In., Head Width 29/32 In., Package Quantity 5'