Product DescriptionPackage content<br> 280 pieces of lock washer1.Utility<br> 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 friction and rotational resistance.2.High quality material<br> Lock washers are made of 65 manganese steel, strong and durable, no deformation, abrasion and corrosion resistance.3.Multiple sizes<br> 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<br> Fixed washers widely used in machinery equipment, lawn mower, engines, cars, trucks, trailers, toys, bicycles, recreational vehicles, boats, pumps, furniture, etc.5.Economic package<br> 280 pieces of black steel lock washers and a plastic box, each size is separated in a storage box for easy selection and storage. 7 sizes can meet your different needs.<br>Note: <br>1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. <br>2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!<br>About Shipping: <br>1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly.<br>2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.<br>3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping!