Yosoo 150Pcs 15 Sizes Metric Copper Flat Ring Washers Variety Set Gaskets Assortment Kit with Box

Features: The washer is a thin disk-shaped plate with a hole in the middle that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are as a spacer, wear pad, pre-load indicating device, locking device, and to reduce vibration. High-quality bolted joints require washers to prevent the loss of pre-load after the torque is applied. Washers are also important for preventing galvanic corrosion, particularly by insulating steel screws from aluminum surfaces. Specifications: Material: Copper Type: Flat washer ID*OD*Thickness & Quantity: M5*9*1, 10pcs M6*10*1, 10pcs M6*12*1, 10pcs M8*12*1, 10pcs M10*14*1, 10pcs M10*16*1, 10pcs M10x18x1, 10pcs M12*16*1, 10pcs M12*18*1.5, 10pcs M14*18*1, 10pcs M14*20*1.5, 10pcs M16*22*1.5, 10pcs M18*24*1.5, 10pcs M20*26*1.5, 10pcs M22*28*1.5, 10pcs Box Size: 130 x 68 x 22mm / 5.12 x 2.67 x 0.86inch Package Includes: 150pcs x Washers