BBI Cap Screw, Full Rolled Thread, Series: 00050, Measurement System: Imperial, 3/4-10 Thread, 2 in Length Under Head, 5 Grade, Medium Carbon Steel, Zinc Blue, UNC Thread, 15/32 in H Head, Hex Head, 120000 psi Tensile Strength, Material Specification: ASTM F1941 FeZn3A, SAE J429, 25 to 34 HRC Hardness