Socket Head Cap Screw Head Type Button Material Carbon Steel Black Oxide Finish Thread Size 80 Drive Type Hex Socket Drive Size 0.035 In. Thread Type Fine Thread Style Fully Threaded Thread Direction Right Hand Length under Head 5/16 In. Thread Length 5/16 In. Head Height 1/32 In. Thread Dia #0 Head Dia 9/64 In. Temp Range -65 Degrees F to 300 Degrees F Rockwell Hardness C37 to C44 Min Tensile Strength 135 000 psi Meets/Exceeds ASME B18.3 Package Quantity 100