Sargent 4878 Public Toilet Mortise Deadbolt with Double Cylinder and Thumbturn

Sargent 4878 Series Public Toilet Mortise Deadbolt with Double Cylinder and Thumbturn

Professional Mortise Deadbolt for High-Traffic Public Facilities

The Sargent 4878 Series Public Toilet Mortise Deadbolt delivers maximum security and durability for demanding commercial applications. Featuring a laminated stacked steel deadbolt with 2 3/4" backset and 1" latchbolt throw, this UL Listed lock is specifically designed for high-traffic facilities like schools and hospitals. The double cylinder configuration with thumbturn provides key operation from either side while the interior thumbturn retracts but will not project the deadbolt.

Professional Features & Benefits

• Standard Door Compatibility: Designed for 1 3/4" door thickness with 2 3/4" backset for standard commercial door installations.
• Heavy-Duty Construction: Laminated stacked steel deadbolt provides maximum security and durability for high-traffic commercial applications.
• Professional Security Features: 1" latchbolt throw with flat strike type ensures reliable engagement and security performance.
• UL Listed Compliance: UL and ULC Listed for fire safety and security compliance in commercial building applications.
• Dual Access Control: Double cylinder design allows key operation from either side with interior thumbturn for convenient retraction without projection capability.
• Non-Handed Design: Universal installation reduces inventory requirements and simplifies field installation.
• Complete Installation Package: Includes 2 keys and flat strike for immediate installation readiness.
• Manufacturer Warranty: 1-year limited warranty provides added confidence and protection for commercial installations.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Public Restroom Facilities
• Educational Institution Restrooms
• Healthcare Facility Restrooms
• Commercial Office Building Restrooms
• Retail Establishment Restrooms
• Multi-Tenant Residential Common Areas
• Government and Municipal Building Restrooms

Why Choose Sargent Quality?

Sargent mortise deadbolt products deliver professional-grade reliability with laminated stacked steel construction and UL Listed certification for demanding commercial applications. The 1-year limited warranty provides added confidence for high-traffic installations. Engineered specifically for public toilet applications where dependable security and durability are essential.