Hex Head Cap Screw Head Type Hex Diameter 7/16 In. Grade 5 Material Steel Finish Zinc Plated Thread Size 7/16-14 Thread Type Coarse Length under Head 2-1/2 In. Thread Length 1-1/8 In. Head Height 9/32 In. Head Width 5/8 In. Thread Style Partially Threaded Thread Direction Right Hand Proof Load 85 000 psi Tensile Strength 120 000 psi Rockwell Hardness C25 to C34 Meets/Exceeds SAE J429 ASME B18.2.1 Package Quantity 300