


2022 Proven Locks Demco
Proven Lock Set Bolt cutter Proof Made in the U.S.A. These are among some of the toughest locks made! Cheap locks are cheap for a reason...they dont work. It takes more than just a lock to secure your valuable trailer. You need to surround the coupler with steel custom fabricated to fit your particular coupler. These do just that. Just a few easy steps. Lift the coupler latch Insert Part A of the lock set Close the latch Attach Part B Insert the Puck lock Twist the key and you are done....