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BT1 coupler lock
Patent Pending
Backed by a Limited Lifetime Guarantee
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Protecting your investment has never been easier with Bank Trailer Security Systems products.  Designed with robustness, tamperproof and ease of use at the forefront.


Free Shipping 48 states
Enclosed Trailer Locks
Gooseneck Trailer Locks
Dump trailer Locks
Equipment Trailer Locks
Trailer Type
Camper Trailer Locks
Trailer Pintle Eye Locks
Bumper Pull Trailer Locks
Boat trailer Locks

Select Image to see common couplers for specific trailer type and recommended Lock

About Us

Welcome to

Bank Trailer Security Systems LLC

Our goal is to provide security and peace of mind that your trailer is protected from theft.  With our proven design, that is robust and extremely tamper resistant, you can take comfort, in knowing, your trailer has the highest level of security at the most reasonable cost.


Bank Trailer Security Systems LLC was founded to address a major problem for trailer owners.  Every day trailers are stolen from homes, storage lots, job sites, etc.  The majority of trailer coupler locks are easily defeated with a hammer or pry bar in a matter of seconds, allowing a thief to hook up your trailer and leave before being noticed.  After reviewing most available trailer coupler locks on the market, it was clear that none of them provided the level of security that I wanted for my trailers.  Therefore, Bank Trailer Security Systems LLC was founded to provide a comprehensive and secure locking mechanism for all types of trailer couplers at an affordable cost.  Most coupler locks on the market are made of cast aluminum, machined aluminum, and pot metals.  These types of metals cannot resist even mild tampering with a hammer or crowbar before breaking and falling off the coupler.  These types of locks provide a false since of security and will not be a deterrent to a trailer thief.  Our patent pending design is made of 1/4" and 3/4" plate steel and precision welded to the highest standards creating a lock that will cause the most experienced trailer thief to pass by your trailer for another less protected.  Don't be a victim to trailer thief, "Put the Security of your Trailer in the Bank" with Bank Trailer Security Systems LLC products.


2112 Clearview Dr.

LaGrange, KY 40031

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