The MS1951-310-335 from Adams Rite is a high-security deadlock designed for narrow stile doors, featuring a straight bolt and a 1-1/8″ backset in a sleek black finish. This deadlock utilizes a durable laminated stainless steel bolt activated by a pivot mechanism, ensuring maximum security even in challenging installations. Its design allows for a 360-degree turn of the key or thumbturn, providing ease of use while the lock can only be removed in a locked or unlocked position. Compatible with standard mortise cylinders, this product combines functionality with robust security features.
Adams Rite MS1951-310-335 Deadlock Features
- Black Anodized Finish: Enhances durability and aesthetics, providing a modern look and resistance to wear and corrosion.
- Cylinder Backset: 1-1/8″, ensuring compatibility with a variety of door installations.
- Robust Case Construction: Made from fully stainless steel with internal components measuring 1″ x 6″ x depth (varying by backset), offering long-lasting strength and reliability.
- Straight Bolt Design: Crafted from eight ply laminated stainless steel, measuring 5/8″ x 1-3/8″ x 2-7/8″ with a 1-3/8″ throw, maximizing security against forced entry.
- Radius Faceplate: Measures 1″ x 6-7/8″, providing a clean and professional appearance while ensuring proper alignment during installation.
- Handed Operation – Non Handed: Designed for ease of installation, adaptable to either left or right-handed doors.
- Cylinder Not Included: Allows for customization with any standard 1-5/32″ diameter mortise cylinder with MS dimensioned cam.
- Grade 1 Strength: Meets high standards for security and durability, making it suitable for commercial applications.
- Strike Not Included: Provides flexibility to choose a strike that best fits your specific door setup.
Adams Rite MS1951-310-335 Detailed Specifications
| Feature | Details |
| Finish | Black Anodized |
| Cylinder Backset | 1-1/8″ |
| Case Material | Fully Stainless Steel |
| Internal Components Size | 1″ x 6″ x depth (varies by backset) |
| Straight Bolt Material | Eight Ply Laminated Stainless Steel |
| Straight Bolt Dimensions | 5/8″ x 1-3/8″ x 2-7/8″ with 1-3/8″ throw |
| Faceplate Dimensions | 1″ x 6-7/8″ |
| Handed Operation | Non Handed |
| Cylinder Compatibility | Any standard 1-5/32″ diameter mortise cylinder with MS cam |
| Strength Rating | Grade 1 |
| Strike | Not Included |



















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