Standard washers are common metal components in the stamping process, typically used to fill and separate gaps between mechanical parts or adjust the gap when tightening bolts. These washers can be made from various metal materials such as stainless steel, aluminum, copper, etc., and they have characteristics of corrosion resistance, wear resistance, and high strength. Standard washers usually have standardized dimensions and thickness, such as DIN, ISO, and other international standards, to ensure their reliability and consistency during assembly and use. They are widely used in industries such as automotive, machinery, electronics, aerospace, etc., and are an important part of the stamping process.