Washers price DIN 127 Spring Lock Washers Spring Lock Washers are a left hand helix and allow the nut to be tightened in a right hand direction only. When compressed by tightening the nut, the washer bites into the substrate and exerts a spring force between the bolt and the substrate creating frictional resistance to rotation. Feature and Advantage 1. Made of stainless steel and used in outdoor or humid environment, more corrosion resistant and more acid resistant than ordinary stainless steel. 2. Lock washers are commonly used in any application using a bolt where two pieces are being drawn together. 3. Washer's surface are smooth can reduces friction between the fasteners, preventing isolates, preventing loosening and dispersion pressure. Specifications Item Weight0.0254kg Product DimensionsM3-M16 or Customized size Sizefull size MaterialStainless SteelWashers price website:http://www.shallfastener.com/washers/