550PCS External Tooth Lock Washers Assortment Kit (M2.5-M12)

External Tooth Lock Washers Material: Made of 304 stainless steel, with good corrosion resistance and long service life. Compared with galvanized materials, it has stronger oxidation resistance, corrosion resistance and rust resistance, and the service life of products is longer. | Starlock washers 550pcs includes eight sizes:m2.5(120 pcs),m3(120 pcs),m4(110 pcs),m5(70 pcs),m6(50 pcs),m8(30 pcs),m10(30 pcs),m12(20 pcs). | Widely used: the internal star washers is matched with the same type of screws, nuts and bolts, which can be used to connect moving parts or prevent loose connection, such as shock absorption and insulation in furniture maintenance, outdoor construction, mechanical equipment, furniture, electrical appliances, automobiles and industrial production. | 550pcs internal lock washers is packed in a transparent box, with clear model classification, easy carrying and convenient storage, and the box can be reused. | 550pcs internal lock washers is packed in a transparent box, with clear model classification, easy carrying and convenient storage, and the box can be reused.