Description: Made of stainless steel washers, durable and strong, rust resistant, long lasting Includes 10 conmmon use sizes of flat and lock washers. With an assortment case to store washers without risk of loss and damage. These washers help to prevent bolts or nuts from pulling through a surface. Fitment: home, automotive, and shop use. Specification: Size: Approx. Inner diameter x Outer diameter x Thickness M2?2x5x0.3mm/0.08x0.20x0.01inch M3: 3x7x0.5mm/0.13x0.28x0.02inch M4: 4x9x0.8mm/0.12x0.35x0.03inch; M5: 5x10x1mm/0.20x0.39x0.04inch; M6: 6x12x1.6mm/0.24x0.47x0.06inch; Package Includes: 30 pieces M2 Flat Washers 30 pieces M3 Flat Washers 30 pieces M4 Flat Washers 30 pieces M5 Flat Washers 20 pieces M6 Flat Washers 30 pieces M2 Lock Washers 30 pieces M3 Lock Washers 30 pieces M4 Lock Washers 30 pieces M5 Lock Washers 20 pieces M6 Lock Washers
