This pattern is used to 3D print locknuts and keys as one piece using acid and corrosion-resistant stainless steel. Ford says they have also included measures to prevent cloning.

Prevailing-torque locknuts can also be used as spacer or stop nuts where components must be free to rotate without end play.

For example, use two locknuts on rigid metal conduit or intermediate metal conduit — one inside and one outside of boxes and cabinets. Equipment bonding jumpers must terminate by any of the eight ...