BBI 211020 Flat Socket Cap Screw, #4-40, 5/8 in OAL, Alloy Steel, 3A Grade

BBI Flat Socket Cap Screw, Measurement System: Imperial, #4-40 Thread, 5/8 in Overall Length, Alloy Steel, 3A Grade, Plain/Thermal Black Oxide, Material Specification: ASTM F835, 1/16 in Drive, Hex Drive