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

Use any compatible lock cylinder with these handles. The outside handle is always locked, but you can open the door from the inside.

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

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

Each of these knobs opens with its own key. The outside handle is always locked, but you can open the door from inside.

Install a compatible lock cylinder to keep these knobs locked from the outside. You can always open them with the inside knob.

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.

Lock and unlock the outside handle with both a master key and a unique door key. The inside handle can always open the door.

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.

These knobs open with a master key and their own keys. The inside knob opens the door whether it is locked or unlocked.

Also known as passage handles, these do not lock.

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 key- and button-locking door handles without lock cylinders.

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

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

Choose these knobs if you need to open multiple doors with the same key. They also lock and unlock with a button on the inside.

Open these knobs with both a shared master key and key unique to that door, or use the button on the inside.

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

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