GD C All Metal Hex Locknut, National Coarse (Bulk Carton)

An all metal, one-piece, hex-shaped lock nut which derives its prevailing torque characteristics from controlled distortion of its top threads from their normal helical form to a more elliptical shape. These nuts are reusable and can withstand temperatures of up to 450 degrees Fahrenheit. Can withstand severe vibration and shock loads. Frequently used in farm machinery, plus the automotive and related metal working industries. *ZNBW - Zinc Blue and Wax