Description
4900 Heavy Duty Deadlatch provides flexible traffic control and easy installation.
Function:
Flexibility of traffic control and easy installation is offered by 4900 Series Heavy Duty Deadlatches. A key-controlled bolt hold-back feature allows for two-way traffic for applications which require free entrance at certain times and exit-only at other times. This allows a “locked” entrance to be used as an exit by visitors already in the building. 1-3/4″ [44.5 mm] minimum door thickness required. Interchangeable, without stile modification, with any MS1850S deadbolt of same backset and faceplate shape. Also retrofits to existing 4510 and discontinued 4700 Deadlatch preparations.
Operation:
Turn key or operate handle or paddle to retract spring-loaded latch bolt. To hold bolt retracted, push it in and secure by reverse turn of key. Lock accepts any standard 1″ [25.4 mm] length, 1-5/32″ [29.4 mm] diameter mortise cylinder with MS® cam such as the 4036 Mortise Cylinder or thumb turn such as the 4066Thumbturn, available separately. Lock accepts cylinder from either or both sides.
Features
- Cylinder Backset: 31/32″ [24.6 mm], 1-1/8″ [28.6mm], or 1-1/2″ 38.1 mm].
- Case: Steel with corrosion-resistant plating. Measures 7/8″ x 5-13/16″ x depth [22.2mm x 147.6 mm x depth]. Depth varies by backset. Screw-fastened tube spacer brackets allow for cleaner removal when tab mounting.
- Bolt Holdback: While bolt is held fully retracted, a reverse turn of the key retains the bolt, allowing the door to be free swinging.
- Latchbolt: Solid brass. Handing is easily reversible without special tools. Measures 5/8″ x 1″ x 5/8″ [15.9 mm x 25.4 mm x 15.9 mm] throw.
