C7000-832-4 Flat Steel Spring Nut Black Phosphate (Pack Qty 4,000) BC-210162

Same advantages as a flat-type spring nut, but more versatile. Can reduce assembly time by eliminating such steps as welding and riveting. Nut surface will accept paint without clogging inside the thread SAE 1050 or higher carbon steel For material thickness 0.017-0.024 in., Rockwell 30N C40 minimum, C50 maximum.. For material thickness 0.025-0.039 in., Rockwell 45N C40 minimum, C50 maximum