Gardner Bender RW509 reducing washers are steel, zinc-plated washers with an outer diameter of 1-1/2 inches and an inner diameter of 1/2 inch, designed to adapt fastener assemblies by providing a larger bearing surface around a 1/2" bore. The zinc coating offers corrosion resistance for general-purpose use in mechanical and electrical mounting where a 1/2" bolt passes through a larger opening. These reducing washers help distribute load and protect mating surfaces in fastening applications.
