'Hex Head Cap Screw, System of Measurement Inch, Head Type Hex, Dia./Thread Size 1/2 In.-13, Thread Type UNC (Coarse), Fastener Length 3 In., Min. Thread Length 1-1/4 In., Basic Material Stainless Steel, Screw Grade/Class 18-8 (304), Fastener Finish Plain, Thread Style Partially Threaded, Thread Direction Right Hand, Head Height 5/16 In., Head Width 3/4 In., Screw Industry Standards ASME B18.2.1, Package Quantity 5'