'Hex Head Cap Screw, System of Measurement Inch, Head Type Hex, Dia./Thread Size 3/8 In.-16, Thread Type UNC (Coarse), Fastener Length 1-1/4 In., Min. Thread Length 1 In., Basic Material Steel, Screw Grade/Class Grade 8, Fastener Finish Zinc Yellow, Thread Style Fully Threaded, Thread Direction Right Hand, Head Height 15/64 In., Head Width 9/16 In., Proof Load 120, 000 psi, Screw Industry Standards ASME B18.2.1, Package Quantity 50'