Yale PM444KB Key for Door Security Bolt Pack of 1

The Yale PM444 series offers concealed mortice-fixed security door bolts designed to enhance door protection. Operated by a key, these bolts install inside the door and extend into the door frame to provide added security. For optimal protection, two bolts per door are typically recommended, and an additional key can be purchased separately to ensure spare access. The bolts are compatible with standard doors requiring concealed security bolts and are available in multiple finishes to suit different hardware styles.

Features

• Concealed mortice fixing into the door
• Key-operated bolt throws into the frame
• Typically two bolts per door
• Available finishes: Brass, Chrome, or White
• Optional additional key for spare access

Technical specifications

• Material: Brass
• Finish options: Brass, Chrome, White
• Type: Mortice fixing security bolt
• Operation: Key-operated
• Installation requires drilling and mortice work
• Recommended two bolts per door