Nord-Lock - bolt locking without compromiseThe original Nord-Lock wedge-locking washers are known worldwide for securing bolted joints that are exposed to strong vibrations and dynamic loads. With their unique wedge-locking technology and made of high-quality material, Nord-Lock wedge-locking washers are the safest and most reliable screw locking elements in the world.The original Nord-Lock wedge-locking washers are a purely mechanical fastening element in accordance with DIN 25 201, which secures screw connections by clamping force instead of friction.The functional principleNord-Lock screw locking systems consist of a pair of wedge-locking washers with opposing wedge surfaces that interlock. This creates a wedge effect that prevents the screw from loosening. The shape of the wedge surfaces is selected so that the angle "a" is always greater than the thread pitch "ß." When the screw connection is tightened, the radial ribs press positively into the mating surface. The Nord-Lock wedge lock washer pair sits firmly in place and movement is only possible between the internal wedge surfaces. Even the slightest rotation in the direction of loosening increases the preload force due to the wedge effect - the screw thus secures itself, creating a so-called click effect when the screw connection is loosened due to the internal wedge surfaces sliding over each other. Under these conditions - positive locking and click effect - Nord-Lock secures every screw connection, even under strong vibration and dynamic loads.The advantagesOriginal Nord-Lock wedge lock washers secure screw connections that are subject to strong vibrations and dynamic loadsLarge selection of different dimensions and materials for use in general steel and stainless steel applicationsLarge selection of different dimensions and materials for use in general steel and stainless steel applicationsLarge selection of different dimensions and materials for ...