One Piece Construction - Housing is formed and welded to create a one-piece housing component - no hinges to seize or be tampered with.

Interconnected Design - All components of the lock are interconnected, no loose parts to misplace, assemble, or lose.

Tough Durable Construction - Housing is made of 1/4" steel and the locking component is made of 3/4" steel. 

Tamper-Proof Design - Master Lock padlock is completely contained within the housing:

1. eliminating tampering access to the lock shackles, resists hammering, prying, and cutting. 

2. Protected from environmental elements, rain, ice, dirt, etc. from contaminating the lock mechanism.

Easy to Maintain - Pad Lock is easily removed for preventative maintenance.

Keyed Alike - Pad Lock can be replaced with match keyed locks for multiple units keyed alike.  All coupler lock styles can be keyed alike to any quantity.

Attractive Functional Appearance -  designed to resist the influence of weather.

Onboard Storage Bracket - trailer mounted storage bracket keeps lock with trailer when not mounted on coupler.  Providing a safe and secure place to store your lock, on the trailer, when the trailer is connected to a vehicle.

Handicap Friendly - Can easily be installed and removed with one hand.

Made in America - Use only American sourced materials.

Family Owned and Operated - No corporate pressures to cut costs or quality for profits.

Lifetime Guarantee - Designed and built to the highest standards covering materials and workmanship.