Copper Spring Washer, M8 Assorted Split Lock Washers Locking Washers for Screws, Bolts, Nuts

Inner Diameter: 8.1-8.7mm/0.32-0.34 inch; Outer Diameter: 12.1-13.1mm/0.48-0.52 inch; Thickness: 2-2.2mm/0.08-0.09 inch. Our split grower washer is made of copper with surface shaping stripper, which is strong, oxidation and rust resistant, with good corrosion resistance and long service life. Grower washer is mainly used to prevent nuts, bolts, screws from loosening due to mechanical aging, vibration, friction, and plays the role of fixing objects to ensure the stability and safety of the machine. Generally used under the bolt or nut to evenly distribute the load of the bolt, screw and nut when the fixator is tightened. The spring grower washer is suitable for screws, nuts and bolts of the same size, and can be used to connect machines to avoid loose connections. It is widely used in metal plate, bridge, furniture repair, outdoor buildings and electrical maintenance.