Description
The Adams Rite 4900 Series mortise deadlatch offers flexible traffic control for institutional and commercial doors. Its unique bolt holdback feature lets you reverse-turn the key to retain the bolt fully retracted, enabling free two-way passage when needed and exit-only restriction at other times. Perfect for hospitals, schools, and office buildings requiring variable access control.
The 4900 works with standard mortise cylinders (MS cam) in three backsets: 31/32", 1-1/8", and 1-1/2". It retrofits existing 4500/4700 preparations and replaces MS1850A or MS1850S deadbolts without stile modification. Includes flat and radius faceplates, strike options, and reversible brass latch bolt. Contact E.D. Locks at sales@edlocks.com or 1-877-207-6067 for expert guidance on handing, strike selection, and cylinder ordering.
Specifications
- Bolt Holdback: Reverse key turn holds bolt retracted for free-swinging operation
- Case: 7/8" x 5-13/16" x variable depth; 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"; flat and radius supplied; flat adjustable for beveled edges
- Cylinder Backsets: 31/32", 1-1/8", or 1-1/2"
- Included: Flat and radius faceplates, 4902 strike, machine screws
- Order Separately: Cylinders, paddle, handle, latch pull
