
Marks USA
Marks USA Nova 5/55 Series Grade 1 Mortise Lock | Dormitory Function Function - F (ANSI F12)
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Marks USA Nova 5/55 Series Grade 1 Mortise Lock | Dormitory Function Function - F (ANSI F12)
Function
Dormitory F (ANSI F12)
Latch by knob/lever either side except when outside knob/lever locked by stop-button or projected deadbolt. Deadbolt by turnpiece inside. Inside knob/ lever retracts latch and deadbolt simultaneously, leaving outside locked. Deadbolt deadlocks latch.
Features
5 Series (2-3/4” backset); 55 Series (2-1/2” backset)
1. Lock Front: Adjustable bevel steel backplate 1-1/4” x 8” x 7/64” thick stainless steel. Cover plate 1/16” thick.
2. Deadbolt: Stainless steel with hardened roll pins, 1” throw.
3. Latch: Solid stainless steel with antifriction latch lever, 3/4” throw (reversible).
4. Auxiliary Deadlatch: 1/2” throw (reversible).
5. Hubs: Steel, 9/32’’ on diamond, 5/16” on square with security separator. Independent exterior and interior lever support springs.
6. Lever Support Springs: Lever support springs with 5/16” Hubs
7. Hub Follower: (to lock hub) steel 1/8” thick.
8. Hub Stop: (to limit lever travel) steel 1/8” thick.
9. Case: Stamped steel 3/32” thick, zinc dichromate finish.
Marks NOVA Series Mortise Lock Dimensions
- Option:Choose Cylinder (What is a Cylinder? Click link here to know more):
- https://blog.locksandsafes.com/2021/03/17/lock-cylinder-and-keyway-guide/
- Option:Choose Finish (What is this? Click here to see our detailed Door Hardware Finish Guide):
- https://blog.locksandsafes.com/2020/07/28/lock-and-door-hardware-finishes/