Nord-Lock designed its wheel nut to eliminate unintentional loosening, the main cause of wheel loss. Based on wedge-locking technology, the Nord-Lock wheel nut is designed for both on- and off-road vehicles, suits standard flat-faced steel rims and M22x1.5 studs, and is easy to install.
The wheel nut, made of steel, secures wheels by maintaining a high clamp force, even under severe operating conditions. Each nut incorporates a pair of washers that have cam faces on one side, with radial teeth on the opposite side. 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. Once tightened, the wheel nut cannot loosen by itself