Marks USA Nova 5/55 Series Grade 1 Mortise Lock | Apartment Function Function - FD (ANSI F20)

Marks USA Nova 5/55 Series Grade 1 Mortise Lock | Apartment Function Function - FD (ANSI F20)

Function

Apartment FD (ANSI F20)

Latch by knob/lever either side except when outside locked by stop-button or projected deadbolt. Latch deadlocked by auxiliary latch or deadbolt. Deadbolt and latch by key outside. Deadbolt by turnpiece inside. Inside knob/lever retracts latch & deadbolt simultaneously, leaving outside locked.

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