Catalog number: WC2005-3 Features: ● Washers of non-standard sizes and thicknesses are standardized. ● Secures the seating surface when tightening bolts. ● Can also be used as a spring seat or spacer. Specifications: ● Outer diameter (mm): 20 ● Inner diameter (mm): 5 ● Thickness (mm): 3 Material/Finish: ● Iron S45C/Black dyed
