NORD-LOCK Wedge Lock Spring Washers NLX20 Zinc-Plated, Pack of 100

Nord-Lock - Screw locking without compromise. The original Nord-Lock wedge lock washers are known worldwide for securing screw connections that are exposed to strong vibrations and dynamic loads. With their unique wedge locking technology and made of high-quality material, the Nord-Lock wedge lock washers are the safest and most reliable screw locking elements in the world. The original Nord-Lock wedge lock washers are a purely mechanical fastener according to DIN 25 201, which secures screw connections by clamping force instead of friction. The operating principle: Nord-Lock screw locking systems consist of a pair of wedge locking discs with opposite wedge surfaces that interlock. It creates a wedge effect, which 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 tightening the screw connection, the radial ribs are form-fitted into the counter support. The Nord-Lock wedge locking disc pair sits firmly in place and movements are only possible between the internal wedge surfaces. Even at the slightest rotation in the release direction due to the wedge effect, an increase in the preload force - the screw thus secures itself. When the screw connection is loosened, a so-called clicking effect is created by sliding the inner wedge surfaces on top of each other. Under these conditions - positive fit and click effect - Nord-Lock secures any screw connection, even under strong vibration and dynamic load. Advantages: Original Nord-Lock wedge lock washers secure screw connections that are exposed to strong vibrations and dynamic loads; large selection of different dimensions and materials for use in general steel and stainless steel applications; wide range of different dimensions and materials in corrosive and acidic environments and at high ambient temperatures; the safety function is not affected by lubrication; achieves accurate preload with defined and uniform EEEEEEEScrews up to and including strength class 12.9 (steel) and A4-80 (stainless steel); high corrosion resistance (at least 1,000 hours in the salt spray test according to ISO 9227) for steel wedge lock washers; reusable (depending on application conditions); the Nord-Lock X-Series wedge lock spring washers combine the Nord-Lock wedge locking effect with an exceptional spring effect and thus offer additional safety. Level of in applications with large material expansion, with thermal change stresses, high settling phenomena, on soft metals, composites and polymers as well as with short clamping lengths. Steel EN 1.7225, hardness 465 HV1, top layer: VH 302 GZ

• Genuine Nord-Lock wedge lock washers secure bolted connections that are subjected to strong vibration and dynamic loads
• The Nord-Lock X-Series wedge lock spring washers combine the Nord-Lock wedge locking effect with an exceptional spring action, providing an additional level of safety in applications with large material expansion,
• With their unique wedge locking technology and made of high-quality material, the Nord-Lock wedge lock washers are the safest and most reliable screw locking elements in the world.
• Reusable (depending on the conditions of use)