Socket Head Cap Screw Head Type Standard Material Alloy Steel Black Oxide Finish Thread Size 32 Drive Type Hex Socket Drive Size 5/16 In. Thread Type Fine Thread Style Partially Threaded Thread Direction Right Hand Length under Head 2 In. Thread Length 7/8 In. Head Height 1/16 In. Thread Dia #10 Head Dia 5/16 In. Temp Range 250 Degrees F Rockwell Hardness C39 to C45 Min Tensile Strength 180 000 psi Meets/Exceeds ASME B18.3 2002 Self-Locking Element Nylon Patch