The 4512-26-313 from Adams Rite is a standard deadlatch with bevel faceplate and strike in dark bronze anodized. The 4512 series Deadlatch offers maximum flexibility of traffic control during and after business hours. A reverse turn of the key (while bolt is held fully retracted) retains the bolt 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. It is easily interchangeable, without stile modification with any MS1850A or MS1850S Deadlock of same backset and faceplate shape. However, they do not provide the same maximum security level as the MS Deadlock and should not be considered an equivalent replacement.
Adams Rite 4512-26-313 Deadlatch Features
- Dark Bronze Anodized Finish: Provides a stylish and durable surface that resists corrosion.
- Aluminum Construction: Ensures lightweight yet strong performance for long-lasting use.
- Reversible Handing: RH or LHR operation can be easily adjusted without special tools, enhancing installation convenience.
- Cylinder Backset: 31/32″ backset for compatibility with a wide range of doors.
- Steel Case: Made with corrosion-resistant plating for durability measuring 1″ x 5-13/16″ (depth varies by backset).
- Grade 1 Standard: Meets the highest performance standards for security and durability.
- Standard Mortise Cylinder Compatibility: Uses any standard mortise cylinder with MS dimensioned cam for versatility.
- Faceplate Dimensions: Measures 1″ x 6-7/8″ to fit most standard door applications.
- Hardened Steel Latchbolt: Features internal pins and 1/2″ x 1″ x 1/2″ throw for added security against unauthorized entry.
- All-Metal Auxiliary Bolt: Prevents “loiding” or case-knife entry, enhancing overall security.
Adams Rite 4512-26-313 Detailed Specifications
| Feature | Details |
| Finish | Dark Bronze Anodized |
| Material | Aluminum |
| Handing | RH or LHR, reversible |
| Cylinder Backset | 31/32″ |
| Case Dimensions | 1″ x 5-13/16″ (depth varies by backset) |
| Security Grade | Grade 1 Standard |
| Mortise Cylinder | Compatible with MS dimensioned cam |
| Faceplate Size | 1″ x 6-7/8″ |
| Latchbolt | Metal with hardened steel internal pins; 1/2″ x 1″ x 1/2″ throw |
| Auxiliary Bolt | All-metal for enhanced security against loiding |



















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