Hex Head Cap Screw Head Type Hex Diameter 3/8 In. Grade 8 Material Steel Finish Yellow Zinc Plated Thread Size 3/8-16 Thread Type Coarse Length under Head 2 In. Thread Length 1 In. Head Height 15/64 In. Head Width 9/16 In. Thread Style Partially Threaded Thread Direction Right Hand Proof Load 120 000 psi Tensile Strength 150 000 psi Rockwell Hardness C33 to C39 Meets/Exceeds ASME B18.2.1 Package Quantity 25