Brochure

The solution to
loosening wheel nuts
The Nord-Lock wheel nut safely secures wheels on both
on road as well as off road heavy vehicles. The product is
based on the same principle as the Nord-Lock bolt securing
system, and maintains high clamping force even under
extreme operating conditions. Each nut incorporates a pair of
captivated washers with cam faces on one side, where a cam
angle ‘α’ is greater than the thread pitch ‘β’. On the opposite
side there are radial teeth. When the wheel nut is tightened,
the teeth of the Nord-Lock washers grip and lock the mating
surfaces, allowing movement only across the cam faces. Any
rotation of the wheel nut is blocked by the wedge effect of
the cams.
The Nord-Lock wheel nut is based on our unique wedge-locking
technology, which uses tension instead of friction to secure
bolted joints. The system has been used for 30 years to ensure
the structural security of bolted applications exposed to strong
vibrations and high dynamic loads.
For flat-faced rims
The Nord-Lock wheel nut is designed for use on flat-faced
rims. Sliding always occurs between the nut and the upper
washer during tightening, and between the cam faces during
untightening. In this way, clear impression marks are created
without scoring the contact surface. Upon reuse, the serrations
find their way back into the previously created impressions.
The Nord-Lock wheel nut can be used on both steel and
aluminium rims. For use on aluminium, please contact us for
guidance and support.