A2 stainless wave spring washers DIN 137b are manufactured in accordance with the DIN 137b standard. These spring washers are made of A2 stainless steel, which gives good corrosion resistance. Spring washers DIN 137b have a wavy shape that helps create tension between the fastener and the surface. They are typically used in applications where extra securing and protection against loosening of fasteners is needed. The washers are often used in machining, the mechanical industry and construction.