Item Type: Flat Washer Material: Stainless Steel Color: Silver Size: Approx. 2x5x0.5mm / 0.08x0.20x0.02in(ID x OD x Thickness) 2.5x5x0.5mm / 0.10x0.20x0.02in(ID x OD x Thickness) 3x7x0.6mm / 0.12x0.28x0.023in(ID x OD x Thickness) 4x9x0.8mm / 0.16x0.35x0.03in(ID x OD x Thickness) 5x10x1mm / 0.20x0.39x0.04in(ID x OD x Thickness) 6x12x1.5mm / 0.24x0.47x0.06in(ID x OD x Thickness) 8x16x1.5mm / 0.31x0.63x0.06in(ID x OD x Thickness) 10x20x2mm / 0.39x0.79x0.08in(ID x OD x Thickness) Weight: Approx.225g/7.9oz Application: Used for sump plugs, automotive brake lines, fuel, oil lines, hydraulic accessories, water 1Package includes 8 sizes: M2 x 50pcs, M2.5 x 50pcs, M3 x 50pcs, M4 x 50pcs, M5 x 50pcs, M6 x 50pcs, M8 x 40pcs, M10 x 20pcs. 2Washer assortment kit fit for most of engines, such as generators, marine, cars, machinery and factory. 3Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection. 4Stainless steel with rust resistant galvanized finish to ensure life?time use, these quality assortment washers for home, automotive, and shop use. 5Built to strict quality control standards, washer design is improved for more practical adoptability.1. Please allow 1?2in error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 360 x Flat Washer(50 x M2, 50 x M2.5, 50 x M3, 50 x M4, 50 x M5, 50 x M6, 40 x M8, 20 x M10) 1 x Plastic Box