How to secure trailer doors with locks on enclosed trailers and cargo trailers.

http://www.thunderboltlocks.com
Enclosed Trailer Locks: The Lightning Bolt® Lock Pin from Thunderbolt® Locks was designed to secure the doors of cargo trailers, utility trailers, and enclosed trailers. Whether your cargo trailer has a side swing door, a rear ramp door, or rear double swing doors, Thunderbolt® Locks offers a lock pin to secure them. It can also be used for box truck overhead doors, toolboxes, service body compartments, and other applications. The Lightning Bolt pin boasts a tamperproof head and a unique key to lock and unlock the lock pin. Thunderbolt offers various styles of bracketing and lock pins to meet your application's needs. We suggest getting a good padlock as your first layer of defense and then adding Lightning Bolt Lock Pins for additional security. The padlock we recommend is the Thunderbolt Alarm padlock, which has a 110db built-in that will sound off as soon as a thief tries to compromise it.
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