General Description This high-quality manganese steel lock washer kit contains 280 pieces, perfect for various DIY and repair applications. The washers are designed to ensure a secure grip and prevent screws and bolts from loosening. Technical Specifications Material: Manganese steel Quantity: 280 pieces Lock Washer Size: M3 x 9 mm, M4 x 12 mm, M5 x 12 mm, M6 x 14 mm, M8 x 18 mm, M10 x 20 mm, M12 x 25 mm Plastic Box Dimensions: 9.5 x 17 x 2.2 cm Color: Black Compatibility and Accessories These washers are compatible with a variety of screws and bolts, allowing you to use them in many DIY projects. Installation To install the washers, place them between the head of the screw or bolt and the surface of the material to be fastened. Ensure the washer is correctly positioned to guarantee an effective grip. Areas of Use: Use these washers in applications such as: Furniture assembly, Mechanical repairs, Construction projects, Automotive applications