Shackle is concealed to make it difficult to cut. Choose these locks if you need several locks that open with the same key. If the lock or key with the key number you want isn’t listed, order the "Other Key Numbers" and specify your desired key number.

Steel-body locks have a plastic cover to provide corrosion resistance. Stainless steel-body locks are more corrosion resistant than steel-body locks, but are not as strong.

Stainless steel shackles are more corrosion resistant than hardened steel shackles, but are not as strong.

Pin-tumbler key locking mechanisms are the most difficult locking mechanisms to pick. When choosing between padlocks with four or five pins, the lock with five pins is harder to pick.

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

For added security, locks have specially designed keys that cannot be duplicated and cannot be removed when the lock is open. Choose these locks if you need several locks that open with the same key.

Stainless steel-body lock is stronger and more corrosion resistant than brass-body locks. It has a concealed shackle to make it more difficult to cut.

Stainless steel shackles are more corrosion resistant than hardened steel shackles, but not as strong.

Disc-tumbler key locking mechanisms offer good pick resistance. When choosing between padlocks with seven or eleven discs, the lock with eleven discs is harder to pick.

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

Shackle is concealed to make it difficult to cut. 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. The included keys have random key numbers; master keys are sold separately.

Steel-body locks have a plastic cover to provide corrosion resistance. Stainless steel-body locks are more corrosion resistant than steel-body locks, but are not as strong.

Stainless steel shackles are more corrosion resistant than hardened steel shackles, but are not as strong.

Pin-tumbler key locking mechanisms are the most difficult locking mechanisms to pick. When choosing between padlocks with four or five pins, the lock with five pins is harder to pick.

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

Shoulders cover most of the shackle, making it difficult to access and cut. The shackle is hardened steel, so the exposed part resists cuts better than plain steel. To prevent attempts to force them open from prying, shimming, or tapping, they are dual dead locking, so both ends of the shackle lock inside the padlock body. Because these locks are more secure than standard padlocks, they’re often used for unattended gates or storage for valuable equipment. They unlock with a five-digit combination, which means they have ten times more combinations than four-digit locks for added security. Set or reset your combination at any time.

Shoulders cover most of the shackle, making it difficult to access and cut. These padlocks resist corrosion for outdoor use. Set your own combination and change it at any time.

Brass-body locks are more corrosion resistant than hardened steel-body locks. They also have a boron carbide shackle, which is harder and more corrosion resistant than a hardened steel shackle.

Hardened steel-body locks are stronger than brass-body locks and epoxy coated to provide corrosion resistance.

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

Also known as hockey puck locks, these padlocks have a fully enclosed shackle located on the back for greater security than standard padlocks. Because their design prevents bolt-cutting and prying attempts, they’re often used on transport vans. Choose these locks if you need several locks that open with the same key.

Steel padlocks are chrome plated for added corrosion resistance and strength.

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.

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.

Choose these locks if you need locks that each open with a different key. The locks have random key numbers. Also called hockey puck locks, these eliminate the most vulnerable part of any padlock—the shackle.

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