4900 - Heavy Duty Deadlatch by Adams Rite
4900 Heavy Duty Deadlatch provides flexible traffic control and easy installation.
Flexibility of traffic control and installation is offered by 4900 Heavy Duty Deadlatches. A reverse turn of the key while bolt is held retracted retains the bolt, to allow two-way traffic for applications which require free entrance at certain times and exit-only at other times. Interchangeable, without stile modification, with any MS1850A or MS1850S deadbolt of same backset and faceplate shape. Also retrofits to existing 4500 and 4700 Deadlatch preparations. 1-3/4" minimum door thickness required.
Turn key or operate handle to retract spring-loaded Latchbolt. To hold bolt retracted, push it in and secure by reverse turn of key. Uses any standard 1-5/32" mortise cylinder with MS® dimensioned cam.
While bolt is held fully retracted, a reverse turn of the key retains the bolt, allowing the door to be free swinging.
Finish: The Adams Rite 4900 Deadlatch comes in Clear Anodized (628) and Dark Bronze Anodized (313) finish.
Handing: The Adams Rite 4900 Deadlatch comes in LH or RHR (Left Hand/Right Hand Reverse) and RH or LHR (Right Hand/Left Hand Reverse). Click here for Handing Diagram.
Strike Size: The Adams Rite 4900 Deadlatch comes in 2.63" and 4.63" strike size.
Cylinder Backset: The Adams Rite 4900 Deadlatch comes in 1-1/8" and 1-1/2" backset.
Faceplate: Measures 1" x 6-7/8". Both flat and radius faceplates are supplied. Flat faceplates can also be adjusted in the field for right or left beveled edge doors.
Case: Steel with corrosion-resistant plating, measures 7/8" x 5-13/16" x depth.
Strike: Standard strike furnished is 4902-01 for flat jamb where door closes flush or nearly flush.
Latchbolt: 5/8" x 1" x 5/8" throw. Solid brass. Handing is easily reversible using only a screwdriver.
Auxiliary Latchpin: Stainless steel. Deadlocks latchbolt to prevent "loiding" or case-knife entry.
Cylinder Cam: All Heavy Duty Deadlatch (4900) functions are sold Less Cylinder; see "Companion Items" above for all Cylinder & Keying options.