[External Tooth Star Lock Washers] High Quality Stainless Steel External Tooth Star Lock Washers Set of 160 pcs, includes the most commonly used 7 sizes: M3: 30 pcs / M4: 30 pcs / M5: 30 pcs / M6: 25 pcs / M8: 20 pcs / M10: 15 pcs / M12: 10 pcs.
[Features] Internal Tooth Lock Washer Star exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation.
[Material] Made of high-quality stainless steel environmentally friendly materials, high strength (not easy to deform), wear-resistant, corrosion-resistant, rust-resistant and oxidation-resistant. All gaskets will be packaged in a sturdy clear plastic box that can be used in a storage box.
[Applications] Widely used in a variety of screw fastening applications, ideal for electrical connections in household and commercial appliances, automobiles and ships.