The outside of these handles is always locked, and can be unlocked with a unique key. The inside handle can always open the door.

For frequently used doors, these handles last twice as long as standard self-locking door handles without lock cylinders.

Use the same key to open multiple handles. The outside handle is always locked, and the inside handle can always open the door.

These handles are always locked from the outside, but open with a master key and their own keys.

Lock and unlock the outside of these handles with their own unique keys. The inside handle can always open the door.

The locks on these handles open with the same key. They can open from the inside handle whether locked or unlocked.

Install your own compatible lock cylinders in these handles. The inside handle opens the door whether or not it is locked.

For frequently used doors, these handles last twice as long as standard master keyed key-locking door handles.

These knobs can always be opened from the inside, while the locks on the outside each open with a different key.

In addition to lasting twice as long as standard door handles, these mortise mount into a cutout in the door to withstand vandalism.

Also known as passage knobs, these knobs do not lock.

For frequently used doors, these handles last twice as long as standard key- and button-locking door handles.

For frequently used doors, these handles last twice as long as standard keyed alike key-and button-locking door handles.

For frequently used doors, these handles last twice as long as standard key- and button-locking door handles without lock cylinders.

Unlock these handles with a shared master key and a key unique to that door; they lock with a button on the inside handle.

Lock the outside handle with the button on the inside handle.

These locks use electromagnetic force to hold double doors closed, often as part of an access-control system.