Open: 24 hours 7 days a week

Steel nut

Steel nut
self locking x 5/16" UNF - spanner size: 1/2" AF
"Stover style" lock nuts are one-piece hex nuts which derive their prevailing torque characteristics from controlled distortion of their top threads from their normal helical form to a more elliptical shape.
Frequently used in the automotive and metalworking industries, they can withstand severe vibration and shock loads. They are reusable and can withstand temperatures of up to 232 °C.
All metal locking nuts are grade C zinc cr3.