684 Pcs Black Washers Assortment M2 M2.5 M3 M4 M5 M6 M8 M10 M12 Metal Gaskets Set for Screws, Rust Proof Flat Round Spacer Assorted Plumbing, Tap, Bolt, Wood Screws etc

【Multiple Common Sizes】-- Metal spacer set has 9 different size include M2, M2.5, M3, M4, M5, M6, M8, M10, M12, provide a wide range of size for options, will meet your most of needs. 【Design Feature】-- Metal washers have polishing and smooth surface, easy to fit. With large outside diameter can creates a larger surface area on the fastener assembly to withstand more force and avoid slip. 【High-quality Materials】-These flat washers are made of top quality steel with smooth and burr-free surface. The surface is zinc-plated for high hardness, corrosion and oxidation resistance, and long service life. 【Portable and Organized】-- These assorted washer sizes come in their own grid box for easy storage and portability, and all metal washers are arranged in an orderly fashion for easy access. 【Wide Applications】-- Penny washers set is perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection.Great for home DIY.