ITEM NAME:360x Stainless Steel Flat Washers M2 M2.5 M3 M5 M5 M6 M8 M10 & Storage Box Description: Made of stainless steel washers, durable and strong, rust resistant, long lasting. These washers help to prevent bolts or nuts from pulling through a surface. Fitment: home, automotive, and shop use. All contained in a compact and see through compartmented plastic case. Includes 8sizes common use flat washers: 50 pieces M2,50 pieces M2.5, 50 pieces M3, 50 pieces M4, 50 pieces M5, 50 pieces M6, 40 pieces M8, 20 pieces M10. Specification: Size: Approx. Inner diameter x Outer diameter x Thickness M2: 2x5x0.3mm/0.08x0.20x0.01inch M2.5: 2.5x6x0.5mm/0.10x0.24x0.02inch M3: 3x7x0.5mm/0.13x0.28x0.02inch M4: 4x9x0.8mm/0.12x0.35x0.03inch; M5: 5x10x1mm/0.20x0.39x0.04inch; M6: 6x12x1.5mm/0.24x0.47x0.06inch; M8: 8x16x1.5mm/0.31x0.63x0.06inch; M10: 10x20x2mm/0.39x0.79x0.08inch; Package Includes: 50 pieces M2 flat washers 50 pieces M2.5 flat washers 50 pieces M3 flat washers 50 pieces M4 flat washers 50 pieces M5 flat washers 50 pieces M6 flat washers 40 pieces M8 flat washers 20 pieces M10 flat washers.50 pieces M2,50 pieces M2.5, 50 pieces M3, 50 pieces M4, 50 pieces M5, 50 pieces M6, 40 pieces M8, 20 pieces M10. 40 pieces M8 flat washers. 20 pieces M10 flat washers. 50 pieces M2 flat washers. 50 pieces M2.5 flat washers.