This is the 105pcs assorted stainless steel flat washers set, total including 6 different kinds of sizes(M3/M4/M5/M6/M8/M10). Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection. Features: 100% Brand new and good quality stainless steel flat washers set. Made of 304 stainless steel material, solid and wear-resistant, very good corrosion resistance. Total 105pcs flat washers, including 6 different kinds of sizes(M3/M4/M5/M6/M8/M10), which will meet your different using needs. Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection. Specifications: Washer Type: Flat Washers Material: 304 Stainless Steel Color: Silver Sizes: M3, M4, M5, M6, M8, M10 Quantity: Total 105Pcs M3 * 20 Pcs M4 * 20 Pcs M5 * 20 Pcs M6 * 15 Pcs M8 * 15 Pcs M10 * 15 Pcs Internal Diameter: * M3=3.2mm / 0.13in, M4=4.3mm / 0.17in, M5=5.3mm / 0.21in * M6=6.4mm / 0.25in, M8=8.4mm / 0.33in, M10=10.5mm / 0.41in External Diameter: * M3=7mm / 0.28in, M4=9mm / 0.35in, M5=10mm / 0.39in * M6=12mm / 0.47in, M8=16mm / 0.63in, M10=20mm / 0.79in Item Thickness: * M3=0.5mm / 0.02in, M4=0.8mm / 0.03in, M5=1mm / 0.04in * M6=1.6mm / 0.06in, M8=1.6mm / 0.06in, M10=2mm / 0.08in Package Weight: approx. 90g / 3.17ounce Package Size: approx. 80 * 55 * 10mm / 3.15 * 2.17 * 0.39in Package List: 105 * Stainless Steel Washers