Door Hardware Lock Functions and Handing
Handing Chart
When standing on the outside (keyhole side) of the door:
Left Hand
Hinges on left, opens inward
Left Hand Reverse
Hinges on the left, opens outward
Right Hand
Hinges on the right, opens inward
Right Hand Reverse
Hinges on the right, opens outward
Lock Functions
10 – Passage Set
F75 ANSI
Latch bolt operated by knob/lever from either side at all times.
40 – Privacy Lock
F76 ANSI
Latch bolt operated by knob/lever from either side. Outside knob/lever is locked by push button or other locking device inside and unlocked by emergency release outside, operating inside knob/lever or closing door.
53 – Entrance Lock
F109 ANSI
Deadlocking latch bolt operated by knob/lever from either side except when outside knob/lever is locked by the push or turn button inside. Key outside or operating inside knob/lever releases push or turn button unlocking outside knob/lever except when push or turn button has been rotated to keep outside knob/lever locked. Inside push or turn button must be manually operated to unlock outside knob/lever. Inside knob/lever always operates latch bolt.
70 – Classroom Lock
F84 ANSI
Deadlocking latch bolt operated by knob/lever from either side except when outside knob/lever is locked from outside by key. Inside knob/lever is always operative.
75 – Classroom Security Lock
F110 ANSI
Deadlocking latch bolt operated by lever from either side. Key either inside or outside locks or unlocks outside lever. Inside lever always operates latch bolt.
80 – Storeroom Lock
F86 ANSI
Deadlocking latch bolt operated by key in outside knob/lever, or by operating inside knob/lever. Outside knob/lever is always inoperable.
82 – Asylum/Institutional Lock
F86 ANSI
Deadlocking latch bolt operated by key in knobs/levers, from either side. Both knobs/levers are always inoperable.
Electrically Unlocked
(Fail Secure – FSE)
Deadlocking latch bolt operated by outside lever when outside lever is unlocked by electric current, by key in outside lever, or by operating inside lever.
Electrically Locked
(Fail Safe – FSA)
Deadlocking latch bolt operated by outside lever when power fails, by key in outside lever, or by operating inside lever.
Single Cylinder Deadlock
Deadbolt
Thrown or retracted by key on the outside or by inside turn unit. Bolt automatically deadlocks when fully thrown.
Double Cylinder Deadlock
Deadbolt
Thrown or retracted by key on either side. Bolt automatically deadlocks when fully thrown.