Hex Head Cap Screw Head Type Hex Diameter 1-1/8 In. Grade 8 Material Carbon Steel Finish Yellow Zinc Plated Thread Size 1-1/8-7 Thread Type Coarse Length under Head 8-1/2 In. Thread Length 2-3/4 In. Head Height 11/16 In. Thread Style Partially Threaded Thread Direction Right Hand Tensile Strength 150 000 psi Rockwell Hardness C33 to C39 Meets/Exceeds ASME B18.2.1