Lock Washers(4 Products)
ALLEGRO SAFETY

Allegro lock washers or external tooth lock washers are a special type of washers that create tension so that the bolt doesn't loosen or come out of its installed position. Lock washers comes in semi-coiled shape or have teeth protruding away from their outer diameter. They prevent the rotational movement of the installed bolts by locking them in place. These washers unlike nuts, do not get loose when exposed to vibrations.