Honiwu 200pcs Copper Flat Washers, M5-M14 Assortment Set, Heavy Duty, Polished, Copper Material, Sealing Gaskets, 9 Sizes, Storage Box

• SEALING FLAT GASKETS - Flat gaskets can spread a load, and prevent damage to the outside face being fixed, and insulate steel screws from outside face. Reduce friction, prevent loosening or dispersing pressure.
• 9 SIZE - The metal washers kit includes 30pcs M5x9x1, 30pcs M6x10x1, 20pcs M6x12x1, 20pcsM8x12x1, 20pcs M8x14x1, 20pcs M10x14x1, 20pcs M12x16x1, 20pcs M12x18x1.5, 20pcs M14x18x1, which is enough for your daily use.
• COPPER MATERIAL - All the flat washers are made of copper, which with high conductivity, corrosion resistant. They have a tighter seal and high heat resistance than steel and rubber washers.
• WIDELY USED - Copper flat washers are great for water, sump plugs, fuel and hydraulic fittings. Also are perfect for electrical connections on household and commercial appliances, automotive and marine uses.
• QUALITY GUARANTEE - These sealing washers are designed with a storage box, which arr more convenient to store and carry. Please come to contact us if you have any questions. We will give you a satisfactory solution.

Description: 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. Specifications: Material: Copper Type: Flat washer ID*OD*Thickness(mm) & Quantity: M5*9*1 30pcs M6*10*1 30pcs M6*12*1 20pcs M8*12*1 20pcs M8*14*1 20pcs M10*14*1 20pcs M12*16*1 20pcs M12*18*1.5 20pcs M14*18*1 20pcs Box Size: 130 x 68 x 22mm / 5.12 x 2.67 x 0.86" Package Includes: 200pcs x Washers