5/16 Hex Head Cap Screw, Black Phosphate Black Phosphate, 3/4 in L, 100 PK
813 in, Washer Thickness 0.3 in Body Bolt, Head Type Hex Washer, Material Black Phosphate, Finish Phosphate, Drive Hex, Thread Size 5/16 In.313 in, Drive Size 1/2 in, Tensile Strength 75,400 psi, Dimensional Standards SAE Gr.