The 4531-26-101-313 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 do not provide the same maximum security level as the MS Deadlock and should not be considered an equivalent replacement.
Features
- Durable Finish: Dark Bronze Anodized faceplate offers both aesthetic appeal and resistance to wear.
- Sturdy Construction: Aluminum construction ensures lightweight yet robust performance.
- Versatile Handing: RH or LHR – handed operation is reversible without special tools required, enhancing installation flexibility.
- Compatible Backset: Cylinder Backset: 31/32″ fits standard door configurations.
- Robust Case Design: Steel with corrosion-resistant plating measuring 1″ x 5-13/16″ provides lasting durability.
- Grade 1 Standard: Rated for high security and performance, suitable for commercial applications.
- Universal Cylinder Use: Uses any standard mortise cylinder with MS dimensioned cam, making it easy to replace or upgrade.
- Ample Faceplate Size: Faceplate measures 1-1/4″ x 7-13/32″, fitting a variety of door styles.
- Secure Latchbolt: Metal construction with hardened steel internal pins and a 1/2″ x 1″ x 1/2″ throw increases resistance against tampering.
- Mortised Strike Size: 4901 4-5/8″ strike size ensures a secure fit for the latch.
- Enhanced Security: Auxiliary Bolt made of all metal prevents “loiding” or case-knife entry, offering added protection.
- Standard Strike Shape: Flat strike shape with standard jamb lip length for easy integration into existing door frames.
- Included Strike: Standard strike furnished is 4902-01 for flat jamb where door closes flush or nearly flush, simplifying installation.
Adams Rite 4531-26-101-313 Detailed Specifications
| Feature | Detail |
| Finish | Dark Bronze Anodized |
| Material | Aluminum and Steel |
| Handing | RH or LHR – reversible |
| Cylinder Backset | 31/32″ |
| Case Dimensions | 1″ x 5-13/16″ x depth (varies by backset) |
| Security Grade | Grade 1 Standard |
| Cylinder Compatibility | Standard mortise cylinder with MS dimensioned cam |
| Faceplate Size | 1-1/4″ x 7-13/32″ |
| Latchbolt | Metal with hardened steel pins, 1/2″ x 1″ x 1/2″ throw |
| Strike Size | 4901 4-5/8″ |
| Auxiliary Bolt | All metal for enhanced security |
| Strike Shape | Flat with standard jamb lip length |
| Standard Strike | 4902-01 for flat jambs |



















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