Eliminate access to the most vulnerable part of any padlock—the shackle. Also known as hockey puck locks, these padlocks have a completely enclosed shackle on the back for better security than standard padlocks. Designed to resist bolt-cutting and prying attacks, they’re often used on transport vans to prevent theft. Choose these locks if you want individual locks or groups of locks that open with their own key, but also open with a master key (sold separately).

Stainless steel padlocks are more corrosion resistant than steel padlocks. Rated UL 437, they’ve been tested to withstand break-in methods such as lockpicking, drilling, shackle cutting, sawing, and hammering for over five minutes. Among the most secure padlocks we offer, both their cylinder and keys have a unique design that prevents them from being easily copied. Internal steel plates protect against drills. They cannot be sold outside of the United States due to product regulations.

Add an optional hasp for a complete locking system. These hasps consist of two flanges that attach to a door and a frame or to double doors, like those on the back of a transport van. Thread the shackle through the flanges of the hasp to secure them together.

For technical drawings and 3-D models, click on a part number.