4530 Standard Duty Deadlatch

4530 Standard Duty Deadlatches provide flexible traffic control during and after business hours. Designed to retrofit into the prep of older MS1850 Deadlocks and discontinued 4250 Deadlatches.


The 4530 Standard Duty Deadlatch offers flexibility of traffic control during and after business hours. A reverse turn of the key while the bolt is held retracted retains thebolt to allow two-way traffic for healthcare, financial institutions, retail, and other applications that require free entrance at certain times and exit-only at other times. 4530 Deadlatches are designed to fit without alteration, the stile cutout for older MS1850 Series Deadlocks and discontinued 4250 Deadlatches of same backset.


Turn key or operate handle 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: 7/8" [22.2 mm], 31/32" [24.6 mm], or 1-1/8" [28.6 mm] only.

Case: Steel with corrosion-resistant plating. Measures 1" x 5-13/16" x depth [25.4 mmx 147.6 mm x depth]. Depth varies by backset.

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: All metal with hardened steel internal pins. Handing is reversible without special tools. Measures 1/2" x 1" x 1/2"[12.7 mm x 25.4 mm x 12.7 mm] throw.

Auxiliary Bolt: All metal. Deadlocks latchbolt to prevent “loiding” or case-knife entry.

Faceplate: Measures 1-1/4" x 7-13/32"[31.8 mm x 188.1 mm].

Strike: Standard strike furnished is 4901-01 for flat jamb.

Standard Package: Individually boxed with strike plate 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.
• Available without faceplate or strike plate, select 4533.
• Available in choice of 313 Dark bronze anodized, 335 Black anodized, 628 Clear anodized.


Related Products: When purchasing this product, please consider the following related products, available separately:

Accessories Cylinders Trim Electric Strikes
4104 Mounting Bridge, 91-0965 Mounting Kit for radiused door, 91-0966 Mounting Kit for beveled door, 26-00090XX Tube Spacer, 4901 & 4902 Deadlatch Strikes Standard 1" length, 1-5/32” diameter mortise cylinder with MS® cam such as 4036 Mortise Cylinder, 4066 Thumbturn 3090-1503090P/3090CA100-3090 Series Keyless Entry, 4560, 4565 Deadlatch Handles, 4568,4569 Eurostyle Deadlatch Handles, 4590,4591 Paddles, 4600 Deadlatch Handle 7100 Series: 100/7101, 7110/7111, 7130/7131, 7140,
7400 Series: 7400/7401, 7410/7411, 7430/7431, 7440