Welcome to
Ft. Knox Locks!
Protecting Trailers in All 50 States & Canada

BOLT CUTTER PROOF trailer coupler locks!

Made in America



in trailer security

The most expensive lock you can buy is one that doesn't protect your trailer.

  • Pictured here is a pile of almost $600 worth of trailer locks.  The average price of these locks was $50 - $75. All 11 locks were defeated easily and quietly with only bolt cutters or a crowbar in a combined time of just under 2 minutes!  That's only about 10 seconds per lock!  Do you see your lock? 
  • Be sure to visit our "Competitor Lock Fails" video page to see just how ridiculously easy most trailer security products are to defeat and why our gooseneck lock is the best gooseneck lock!

Recent Customer Testimonial - 2/6/2019


Hi Milton,

I just want to say thank you once again.

It is so rare these days that anyone gives a darn about customer service, but you took it to a new level that others should strive for.  You took immediate action on requests/queries from potential customers and quickly provided us with a solution.  You then shipped the new product to me all within days of my initial query.

Thank you.  You can be sure I have and will continue to tell all I know and meet of your company, products and most importantly your customer service. 

Larry P.

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About Us


Our Story

 Just a few short months after starting our storm shelter business in Tulsa OK our gooseneck dump bed trailer with $40K worth of equipment on board was stolen from a secure construction yard on Easter Sunday morning 2014.  The thieves cut through 3 heavy chains on the entry gate and then 2 logger chains which were running through the frame of the trailer and fastened to concrete blocks which had been poured into the ground.  Heavy bolt cutters were used to defeat the chains and heavy duty locks. Thankfully insurance covered much of the loss, but the time to regroup, get a new trailer and equipment took a few weeks.  I told myself - "this can't happen again" and I spared no expense in fabricating a new lock system for my trailer that was BOLT CUTTER PROOF!


Construction Background

My personal career had been as a construction estimator and project manager.  Over some 30 years I had become familiar with the MasterLock style surround hasp and "puck" lock systems used on Mini Mobiles and temporary construction containers which we used to store our tools and Bobcats overnight.  I had never seen this system defeated and I chose to start with that locking system and reverse engineer a locking system for the latch and the set bolt of my new gooseneck trailer.  I never imagined how much attention I would get from other friends in the construction industry who began to request what they saw as the best gooseneck lock for their own trailers to include adapting the system to other bumper pull couplers, trailer locks and other types of gooseneck coupler trailer locks. .


March 2015

So after about a year of local sales to friends and the development of several more versions, we filed our patent and I constructed a small display which oddly resembled a black and yellow Charlie Brown Christmas tree and went to our first trade show.  It was the local Home and Garden show and to our pleasant surprise we were overwhelmed with sales and orders.  So here we are just a few years later and we are humbled and proud to be protecting thousands of trailers across all 50 states and Canada. We feel so encouraged to have witnessed a significant tragedy turn into such a blessing for our family. Thanks for considering Ft. Knox Locks as we believe our lock system is the best (and thanks to my wonderful wife of 35 plus years for coming up with such a great name:)!  We will be adding other trailer locks in the future - keep watch!

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Better yet, see us in person if you're ever in the Tulsa area.

99% of our business is now mail order, but don't hesitate to give us a call and drop by our house to save shipping.

Ft. Knox Locks

38 East 44th Street, Tulsa, OK 74105

Email: or call my cell @ (918) 857-4380