Adams Rite 4531-16-201-313 Standard Duty Deadlatch with Radius Faceplate in Dark Bronze Anodized
- Dark Bronze 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 4531-16-201-313 from Adams Rite is a standard duty deadlatch with radius faceplate in dark bronze 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, allowing the door to be free swinging for two-way traffic. Ideal for places like hospitals and banks, this deadlatch suits buildings requiring free entrance at certain times and exit-only at others. The 4531 series deadlatches fit older MS1850 Deadlocks and 4250 Deadlatches perfectly, enhancing functionality while maintaining a stylish look, although they should not be regarded as equivalent replacements to the MS Deadlock regarding maximum security levels.
Features
- Finish: Dark Bronze Anodized faceplate finish for enhanced aesthetics and durability.
- Material: Aluminum construction ensures lightweight yet strong performance.
- Handed Operation: RH or LHR - reversible without special tools for added convenience during installation.
- Cylinder Backset: 7/8" backset for compatibility with standard installations.
- Case Specifications: Steel case with corrosion-resistant plating (1" x 5-13/16" x variable depth) for durability.
- Grade: Grade 1 Standard, meeting high-security requirements for commercial applications.
- Cylinder Compatibility: Compatible with any standard mortise cylinder featuring MS dimensioned cam for versatility.
- Faceplate Dimensions: 1-1/4" x 7-13/32" faceplate providing a robust presence.
- Latchbolt: Metal latchbolt featuring hardened steel internal pins and 1/2" x 1" x 1/2" throw for reliable operation.
- Strike Size: Mortised (4902) strike size of 2-5/8" for a secure fit.
- Auxiliary Bolt: All metal construction on the auxiliary bolt prevents "loiding" and enhances security against unauthorized entry.
- Strike Shape: Flat strike shape with a standard jamb lip length for easy installation.
- Standard Strike: Furnished standard strike is 4902-01 for flat jambs ensuring smooth operation of the door.
Adams Rite 4531-16-201-313 Detailed Specifications
| Feature | Details |
| Finish | Dark Bronze Anodized |
| Material | Aluminum |
| Handed Operation | RH or LHR reversible |
| Cylinder Backset | 7/8" |
| Case Specifications | Steel case with corrosion-resistant plating, 1" x 5-13/16" (variable depth) |
| Grade | Grade 1 Standard |
| Cylinder Compatibility | Standard mortise cylinder with MS cam |
| Faceplate Dimensions | 1-1/4" x 7-13/32" |
| Latchbolt Specifications | Metal with hardened steel pins, 1/2" x 1" x 1/2" throw |
| Strike Size | Mortised (4902), 2-5/8" |
| Auxiliary Bolt | All metal for enhanced security |
| Strike Shape | Flat with standard jamb lip length |
| Standard Strike | 4902-01 for flat jambs |



