BBI 581625 1960 Semi-Standard Round Socket Cap Screw, 9/16-12, 4 in OAL, Alloy Steel, 3A Grade

BBI Round Socket Cap Screw, Semi-Standard, Series: 1960, Measurement System: Imperial, 9/16-12 Thread, 4 in Overall Length, Alloy Steel, 3A Grade, Plain/Thermal Black Oxide, Material Specification: ASTM A574, Hex Drive