1/2" Phosphor Bronze External Tooth Lock Washer

Manufactured from phosphor bronze, this 1/2" external tooth lock washer delivers strong resistance to loosening caused by vibration and movement while providing excellent corrosion resistance. The external teeth bite into the fastener head and mating surface to create reliable locking action and enhanced electrical conductivity. Well suited for electrical, marine, and general‑purpose applications where durability, conductivity, and corrosion resistance are essential.