Features: 100% brand new and high quality Quantity: 1035pcs Washer type: flat washer Material: high quality 304 stainless steel Metric size: M1.6 M2 M2.5 M3 M3.5 M4 M5 M6 M8 M10 M12 M16 High quality: high strength, good wear resistance, good corrosion resistance. It can be used for a long time even in harsh environments such as high temperature, cold weather, and high humidity areas. Attractiveness and safety: The flat seals are well made, have a smooth and shiny surface, and look very attractive. 304 stainless steel is generally considered an environmentally friendly material and does not release toxic substances or pollute rodowiska.lt; Specification: Material: Stainless SteelM1.6 : Approx.1.7x4x0.3mm/0.06x0.15x0.011inchM2 : Approx.2.2x5x0.3mm/0.08x0.19x0.011inchM2.5: Approx.2.5x6.5x0.5mm/0.098x0.25x0.019inchM3 : Approx.3.2x7x0.5mm/0.012x0.27x0.019inchM3.5: Approx.3.7x8x0.5mm/0.14x0.31x0.019inchM4: Approx.4.2x9x0.8mm/0.16x0.35x0.031inchM5 : Approx.5.2x10x0.8mm/0.20x0.39x0.031inchM6 : Approx.6.4x12x1mm/0.25x0.47x0.039inchM8 : Approx.8.4x16x1.5mm/0.33x0.62x0.05inchM10: Approx.10.5x19.5x2mm/ 0.41x0.76x0.078inchM12: Approx.13x23.8x2.5mm/0.51x0.93x0.098inchM16: Approx.17x29.8x3mm/0.66x1.17x0.118inchPackage Includes: 1035 pcs. Flat WashersNote: 1. Please allow 1-2mm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.