Description
The Adams Rite 4900 Series Mortise Deadlatch provides flexible traffic control for commercial and institutional doors. This deadlatch allows two-way traffic when needed, then switches to exit-only mode via key control. It solves the problem of managing door access during different times of day without replacing hardware.
The 4900 fits directly into MS1850A or MS1850S preparations and retrofits existing 4500/4700 setups without stile modification. Available in three cylinder backsets (31/32", 1-1/8", 1-1/2"), it includes flat and radius faceplates, strike, and mounting hardware. As an authorized Adams Rite dealer, E.D. Locks offers expert guidance on backset selection and installation; contact sales@edlocks.com or 1-877-207-6067.
Specifications
- Case: 7/8" x 5-13/16", steel with corrosion-resistant plating
- Latchbolt: 5/8" x 1" x 5/8" throw, solid brass, reversible
- Auxiliary Latchpin: Stainless steel, prevents loiding and case-knife entry
- Faceplates: 1" x 6-7/8", both flat and radius supplied, field-adjustable for beveled edges
- Cylinder Backsets: 31/32", 1-1/8", or 1-1/2"
- Bolt Holdback: Reverse key turn holds bolt retracted for free-swinging door
- Strike: 4902 for flat jamb (standard); 4901 for retrofit; radius and long-lip options available
- Includes flat and radius faceplates, strike, and machine screws
