Entrance Function Set
An Entrance Function Lockset would be used on doors that
you need to lock. A key must be used from the outside and usually a
turn button locks the door from the inside.
Passage Function Set
A Passage Function Lockset would be used on doors that do not need
to lock, serving as a means to close and "latch" a door.
Storeroom Function Set
A Storeroom Function Lockset would be used on doors that you need
to lock and remain locked at all times every time the door closes.
A key must be used from the outside every time you open the door
and the inside knob remains free at all times for exit.
Classroom Function Set
A Classroom Function Lockset is locked by turning the key
360 degrees. One way locks the door and the other way unlocks the
door. These are used in schools, hence the term "Classroom".