
High-quality materials: The internal toothed washers are made of high-quality metal, which allows for quick installation of fasteners. It has corrosion resistance, high and low temperature resistance and durability. . Various specifications packaging: The gasket contains 7 sizes: M3, M4, M5, M6, M8, M10, M12. Different sizes can meet your different size requirements. . Function: The lock washer can exert elastic force between the nozzle and the substrate, creating greater friction and rotation resistance.