'Hex Head Cap Screw, System of Measurement Inch, Head Type Hex, Dia./Thread Size 3/8 In.-16, Thread Type UNC (Coarse), Fastener Length 9 In., Min. Thread Length 1-1/4 In., Basic Material Steel, Screw Grade/Class Grade 5, Fastener Finish Zinc Plated, Thread Style Partially Threaded, Thread Direction Right Hand, Head Height 15/64 In., Head Width 9/16 In., Proof Load 74,000 to 85,000 psi, Screw Industry Standards ASME B18.2.1, Package Quantity 5'