Available in six thread sizes from No. 4-40 to No. 10-32, the nuts come in brass, 303 stainless steel, and aluminum in plain, bright nickel, passivated, zinc, and chrome finishes.

Spirol Ascutney, 2637 U.S. Route 5 N, Windsor, CT 5089, (802) 674-6721, www.spirolascutney.com