Adams Rite 4531-25-101-313 Standard Duty Deadlatch with Radius Faceplate in Dark Bronze Anodized
- Dark Bronze Anodized faceplate finish
- Aluminum construction
- LH or RHR - handed operation is reversible without special tools required
- Cylinder Backset: 31/32"
- Case is made of steel with corrosion-resistant plating that measures 1" x 5-13/16" x depth (depth varies by backset)

The 4531-25-101-313 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 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 donot provide the same maximum security level as the MS Deadlock and should not be considered an equivalent replacement.
Features
- Dark Bronze Anodized finish: Provides durability and a professional appearance, enhancing the aesthetic of your doors.
- Aluminum construction: Ensures lightweight yet strong performance, making installation and handling easier.
- Reversible LH or RHR operation: Allows for flexible installation without the need for special tools, accommodating various door configurations.
- Cylinder Backset: 31/32” backset ensures compatibility with existing hardware and easy installation.
- Steel case with corrosion-resistant plating: Offers added durability and resilience against environmental factors with dimensions of 1" x 5-13/16".
- Grade 1 Standard rating: Ensures high performance and security, meeting rigorous testing standards for residential and commercial use.
- Uses standard mortise cylinder: Compatible with MS dimensioned cam allowing for easy replacement and upgrades.
- Faceplate dimensions: 1-1/4" x 7-13/32” provides a strong frame for efficient operation.
- Metal latchbolt with hardened steel pins: Provides robust security with a throw of 1/2" x 1" x 1/2”, enhancing resistance to forced entry.
- Mortised (4901) strike size: 4-5/8” strike for secure alignment with the door frame.
- All metal auxiliary bolt: Prevents loiding or case-knife entry ensuring enhanced security.
- Flat strike shape: Suitable for standard jamb lip length which fits most door setups.
- Standard strike furnished: 4902-01 for flat jambs where doors close flush or nearly flush for smooth operation.
Adams Rite 4531-25-101-313 Detailed Specifications
| Faceplate Finish | Dark Bronze Anodized |
| Construction Material | Aluminum |
| Operation | Reversible LH/RHR |
| Cylinder Backset | 31/32" |
| Case Dimensions | 1" x 5-13/16" (varies by backset) |
| Security Rating | Grade 1 Standard |
| Morris Cylinder Compatibility | Any standard mortise cylinder with MS dimensioned cam |
| Faceplate Dimensions | 1-1/4" x 7-13/32" |
| Latchbolt Material | Metal with hardened steel internal pins |
| Latchbolt Throw | 1/2" x 1" x 1/2" |
| Strike Size | Mortised 4-5/8" (4901) |
| Auxiliary Bolt Material | All metal |
| Strike Shape | Flat |
| Standard Strike Furnished | 4902-01 for flat jamb |
Tools & Calculators


