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Adams Rite 4911W - Heavy Duty Deadlatch, Radius with Weatherstrip Faceplate

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MSRP: $107.00
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Note: Left Hand Handing is the same as Right Hand Reverse Handing and Right Hand Handing is the same as Left Hand Reverse Handing. See handing chart for clarification. Click here to see our Door Handing Guide.

Adams Rite 4911W Heavy Duty Deadlatch - Radius with Weatherstrip Faceplate, any handing, 31/32", 1-1/8", or 1-1/2" backset

4911W (Adams Rite 4900 Deadlatch Series) Heavy Duty Deadlatch provides flexible traffic control and easy installation.


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.


Turn key or operate handle or paddle to retract spring-loaded latchbolt. 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 thumbturn such as the 4066 Thumbturn, available separately. Lock accepts cylinder from either or both sides.


Cylinder Backset

31/32" [24.6 mm], 1-1/8" [28.6 mm], or 1-1/2" 38.1 mm].


The case of the 4911W (Adams Rite 4900 Deadlatch Series) is made of steel with a corrosion-resistant plating. Measures 7/8" x 5-13/16" x depth [22.2 mm x 147.6 mm x depth]. Depth varies by backset (see table below). 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.


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.

Auxiliary Linchpin

Stainless steel. Deadlocks latch bolt to prevent “loiding” or case-knife entry.


Measures 1" x 6-7/8" [25.4 mm x 174.6 mm]. Both flat and radius faceplates are supplied. Flat faceplates can also be adjusted in the field for right or left beveled edge doors.


Standard strike furnished is 4902 for flat jamb where door closes flush or nearly flush. Specify 4901 for retrofit installations. Also available: radius strike for opposite stile in paired doors and long lip strikes for center-hung doors.


Click here for our Definitive List of Door Hardware Finishes

Standard Package

Individually boxed with strike plate, flat and radius faceplates, and mounting screws. Cylinder, paddle, handle available separately.

Shipping Weight

1-1/4 lbs [0.57 kg].


Backset, faceplate shape, strike, handing, and finish must be specified when ordering. See 4920AN Heavy Duty Deadlatch (ANSI Size) for wood and hollow metal door applications. For standard faceplate, see Adams Rite 4900 Deadlatch.

Available in choice of 313 Dark bronze anodized, 335 Black anodized, 628 Clear anodized.

Adams Rite 4911W Heavy Duty Deadlatch Installation Dimensions | Adams Rite 4900 Deadlatch Dimensions


Click here to download Adams Rite 4911W Series Catalog
Click here to download Adams Rite 4911W Series Installation Instruction
Click here to download Adams Rite Price List

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