'Hex Head Cap Screw, System of Measurement Inch, Head Type Hex, Dia./Thread Size 1/4 In.-20, Thread Type UNC (Coarse), Fastener Length 2-1/4 In., Min. Thread Length 3/4 In., Basic Material Steel, Screw Grade/Class Grade 2, Fastener Finish Plain, Thread Style Partially Threaded, Thread Direction Right Hand, Head Height 5/32 In., Head Width 7/16 In., Screw Industry Standards ASME B18.2.1, Package Quantity 50'