Mortise Lock (F20) – Apartment Corridor Door Lock

Mortise Lock -  Apartment Corridor Door Lock

ANSI Function No. F20

Model No. M3420 / H3420

Function

• Latch bolt retracted by lever from either side unless outside lever is locked (made inoperative) by operating toggle button
• Dead bolt projected and retracted by key outside or thumbturn inside
• Key outside operates dead bolt and latch bolt, and outside lever remains locked
• Operating inside lever retracts both dead bolt and latch bolt simultaneously (when dead bolt is projected), and outside lever remains locked.
• Latch bolt is deadlocked when outside lever is locked (made inoperative) or when dead bolt is projected.
• When dead bolt is retracted, outside lever is unlocked by toggle button.
• Inside lever is always free for immediate exit.