1/4-20 Square Machine Screw Nut Black Oxide (Pack Qty 3,000) BC-14NQB

Designed for use with square bolts Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements--Carbon: 0.55% maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum. Rockwell B68 - C32