Adams Rite 4531-16-121-628 Standard Duty Deadlatch with Radius Faceplate in Clear Anodized
- Clear Anodized faceplate finish
- Aluminum construction
- RH or LHR - handed operation is reversible without special tools required
- Cylinder Backset: 7/8"
- Case is made of steel with corrosion-resistant plating that measures 1" x 5-13/16" x depth (depth varies by backset)

The 4531-16-121-628 from Adams Rite is a standard duty deadlatch with radius faceplate in clear anodized. The 4531 Series Standard Duty Deadlatch offers maximum flexibility of traffic control during and after business hours. A reverse turn of the key (while bolt is held full retracted) retains the bolt and thus allowing the door to be free swinging with two-way traffic for hospitals, banks, stores, and other buildings which require free entrance at certain times and exit-only at other times. The 4530 series deadlatches are perfectly designed to fit without alteration, the stile cutout for older MS1850 Deadlocks and 4250 Deadlatches of same backset. However, they do not provide the same maximum security level as the MS Deadlock and should not be considered an equivalent replacement.
Adams Rite 4531-16-121-628 Features
- Clear Anodized Faceplate: Provides a sleek and modern finish that is resistant to wear and tear.
- Aluminum Construction: Lightweight yet durable, ensuring longevity and ease of installation.
- Reversible Handing: RH or LHR operation can be adjusted without special tools, offering flexibility in installation.
- Cylinder Backset: 7/8" backset suitable for a wide range of door applications.
- Corrosion-Resistant Steel Case: Measures 1" x 5-13/16", durable and designed to withstand harsh environments.
- Grade 1 Standard: Ensures highest quality and security standards for commercial applications.
- Standard Mortise Cylinder Compatibility: Uses any standard mortise cylinder with MS dimensioned cam for easy replacement.
- Faceplate Dimensions: 1-1/4" x 7-13/32", fitting seamlessly into your door design.
- Metal Latchbolt: Features hardened steel internal pins and 1/2" x 1" x 1/2" throw for enhanced security.
- Mortised Strike Size: 4-5/8", perfectly matches with existing door configurations.
- All-Metal Auxiliary Bolt: Prevents "loiding" or case knife entry, adding an extra layer of security.
- Flat Strike Shape: Designed with a center hung 4.5" jamb lip length, ensuring a secure fit.
- Long Lip Strikes: Ideal for center hung doors, providing a reliable locking mechanism.
Adams Rite 4531-16-121-628 Detailed Specifications
| Feature | Details |
|---|---|
| Faceplate Finish | Clear Anodized |
| Construction Material | Aluminum |
| Handing | Reversible (RH or LHR) |
| Cylinder Backset | 7/8" |
| Case Dimensions | 1" x 5-13/16" (depth varies by backset) |
| Standard | Grade 1 |
| Cylinder Compatibility | Standard mortise cylinder with MS dimensioned cam |
| Faceplate Size | 1-1/4" x 7-13/32" |
| Latchbolt Features | Metal with hardened steel internal pins, 1/2" x 1" x 1/2" throw |
| Strike Size | 4-5/8" (mortised) |
| Auxiliary Bolt | All metal to prevent "loiding" |
| Strike Shape | Flat with center hung 4.5" jamb lip length |
| Additional Feature | Long lip strikes for center hung doors |



