Hex Head Cap Screw Head Type Hex Diameter 1-1/4 In. Grade 8 Material Carbon Steel Finish Yellow Zinc Plated Thread Size 1-1/4-7 Thread Type Coarse Length under Head 2 In. Thread Length 2 In. Head Height 25/32 In. Thread Style Fully Threaded Thread Direction Right Hand Tensile Strength 150 000 psi Rockwell Hardness C33 to C39 Meets/Exceeds ASME B18.2.1