TRUSCO Brass Rosette Washer M4 30 pcs Y553-6404 1 PK

Catalogue number: Y553-6404 Features: ●When using flat head screws, the mating material needs to be "countersunk", but by using rosette washers, flat head screws can be used without machining, eliminating the machining process. ●Washers for flat head screws and round flat head screws. ●Also called mountain washers. Applications: ●For use as washers exclusively for round flat head small screws and wood screws. Specifications: ●Nominal diameter: M4 ●Outer diameter (mm): 12 ●Inner diameter (mm): 4.5 ●Thickness (mm): 2.5 ●Surface treatment: Nickel plating ●Package: Bolt-on pack (blister) Material/Finish: ●Brass ●Surface treatment: Nickel plating finish