ULTRA-HIGH SECURITY COUPLER/HITCH TRAILER LOCK: This strong and straightforward trailer coupler/hitch lock is designed to secure the RAM coupler.
ULTRA-HIGH SECURITY COUPLER/HITCH TRAILER LOCK: This no-nonsense coupler lock are constructed of 3/16" fully welded cold rolled steel, with welded hinges and hinge pins and is hammer, bolt cutter, and crowbar proof!
HASP: The surround hasp application accepts most "puck" style locks and provides additional safety and security. (Puck lock not included)
DOUBLE CHECK YOUR COUPLER/HITCH: This lock only fits the RAM coupler/hitch pictured. If you do not see your coupler/hitch, please view our other coupler/hitch locks.
FT. KNOX LOCKS: We are a family run and operated small business with our locks designed and proudly made in the USA.
TOTALLY NEW - NO NONSENSE APPROACH TO TRAILER SECURITY!!! This lock fits only the 2" & 2 5/16" Ram forged steel sliding collar coupler including the adjustable version which is very similar to the Bulldog coupler lock except the hole is slightly larger. Made with 3/16" fully welded steel with welded hinges and hinge pins. Heavy yellow powdercoat finish which screams "stay away" Made in America. Limited Lifetime Warranty against manufacturing defects. This lock prevents a thief from simply cutting other types of locks and driving off with your trailer. Unlike almost all other locks for this application, this one is BOLT CUTTER PROOF and can only be defeated with power tools or a cutting torch. The MasterLock hasp for "puck" type locks has a proven track record nation wide on construction storage containers for decades. Don't trust your trailer and equipment to just any lock. Think Ft Knox Locks. Watch our lock defeating videos on our website (ftknoxlocks dot com), it's actually silly how easy most locks are to defeat - not so with Ft. Knox Locks. You can buy the MasterLock puck locks and see our other locks on my website ftknoxlocks dot com Please note: since some customers either already have the puck style locks or desire to purchase multiples keyed alike, we sell the MasterLock "puck" style locks separately. Lifetime warranty against manufacturing defects. Powdercoat is not warrantied. 10% restocking fee and no refund of original shipping and return shipping is on purchaser for products which are return for any reason other than defective or broken. If your coupler does not look EXACTLY like the one in the picture above DO NO BUY this lock - it will NOT fit. NOTE: We have a 25% restocking fee for errant or mistaken purchases.