Copper Washer:10mm x 20mm x 1.0mm - DIN 7603A

This precision-machined copper washer is manufactured to the DIN 7603A standard, ensuring reliable fitment for fastening applications. Constructed from solid copper, it features an outer diameter of 20mm and a thickness of 1.0mm, providing a robust 10mm inner opening for standard bolts. Buyers select this component for its excellent conductivity and corrosion resistance, making it suitable for electrical connections or chemical environments where standard steel washers may degrade. The material’s softness also allows for better clamping force distribution on softer substrates. To choose the correct size, verify that your fastener diameter matches the 10mm nominal inner dimension and that the 1.0mm thickness accommodates the required load distribution.