Description
The Schlage B662B 643E is a heavy-duty Grade 1 commercial deadbolt engineered for high-security applications in offices, retail, and institutional facilities. This conventional cylinder deadbolt solves the need for reliable, durable perimeter security on demanding commercial doors.
Compatible with standard cylinder, full-size interchangeable core (IC), and small format interchangeable core (SFIC) options for flexible keying strategies. Installation requires proper door preparation and coordination with your existing hardware. As an authorized Schlage dealer, E.D. Locks offers expert guidance on specification and keying. Contact our sales team at sales@edlocks.com or 1-877-207-6067 for lock selection and master key system advice.
