1.Utility The lock washer is suitable for quick fixing and repairing, by applying a spring force between the fixing head and the base body to make the washer close to the base body, the bolt thread is close nut or base thread, resulting in increased frictionand rotational resistance.2.High quality material Lock washers are made of manganese steel, strong and durable, no deformation, abrasion and corrosion resistance.3.Multiple sizes Quick Lock Washers have 7 sizes most used, M3 M4 M5 M6 M8 M10 M12, you can choose different size according to your need.4.Wide application Fixed washers widely used in machinery equipment, lawn mower, engines, cars, trucks, trailers, toys, bicycles, recreational vehicles, boats, pumps, furniture, etc.Delivery Quantity: 1set (340pcs)Package Contents: Only the above package contents, excluding other products.Size: Details as shown(Reminder: The size is measured manually, please allow 1-2 cm measurement error)Colour: Black(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)Products from BAZHOU's store