The main types of door functions are Passage (doors that don’t require locking), Privacy (a door that can be locked by a button on the inside), Dummy (has no mechanical latch and acts only as a pull), and Interior Mortise (door with an active latch with skeleton key lock). Learn more about each function through our explanations below.
Passage Set
Active latch with no locking mechanism.
The knob is always unlocked.
Specify “KH” to order a non-functioning keyhole.
Standard door range: 1-3/8” to 1-3/4” thick.
passage function door hardware
Privacy Lock
Active latch with a locking mechanism.
Privacy pin provides locking through rose or long plate.
Can be opened from outside with a release key.
Standard door range: 1-3/8” to 1-3/4” thick.
privacy function door hardware
Single Dummy
A non-functioning door set without a passage/privacy latch, and no locking mechanism.
Used on one side of the door, typically with roller catch, flush bolts or surface bolts.
Surface mounted.
single dummy function door hardware
Double Dummy
Two non-functioning door sets (without a passage/privacy latch) are used on both sides of a door, or on side-by-side or French doors (typically used with roller catch, flush bolts or surface bolts).
Surface mounted or thru-bolted.
