You know its superior because it’s AMERICAN.
End your locknut frustration by installing with our HDI Series Steel LOCKnuts. This LOCKnutt will end all your frustration with warped locknuts, cracked locknuts, and locknuts that simply spin & do not lock. Our steel LOCKnut threads easily and even has a notched area to make your bump lock easy.
All HDI Locknuts are made in our factory in New Jersey. They start from alloy bar stock and precision machined to provide a lifetime of service. They will lock TIGHT & RIGHT every time. Never worry about vibration, they are test proven in major transit, bridge, and airport projects.