Socket Head Cap Screw Head Type Standard Material Carbon Steel Black Oxide Finish Thread Size 24 Drive Type Hex Socket Drive Size 5/16 In. Thread Type Coarse Thread Style Fully Threaded Thread Direction Right Hand Length under Head 3/8 In. Thread Length 3/8 In. Head Height 1/16 In. Thread Dia #10 Head Dia 5/16 In. Temp Range -65 Degrees F to 300 Degrees F Rockwell Hardness C37 to C45 Min Tensile Strength 180 000 psi Meets/Exceeds ASME/ANSI B18.3 Package Quantity 100