Sargent 8221 Grade 1 Mortise Deadlock with Single Cylinder and Flat Strike

Sargent 8221 Grade 1 Mortise Deadlock with Single Cylinder - 2 3/4" Backset

Professional-Grade Deadbolt Security Solution

The Sargent 8221 Series mortise deadlock delivers maximum security and durability with Grade 1 ANSI/BHMA A156.13 Series 1000 performance standards. This robust deadbolt-only unit features a 2 3/4" backset, 1 3/4" door thickness compatibility, and non-handed design for versatile installation. Constructed with a one-piece hardened steel deadbolt and UL/ULC listed for fire-rated applications, this industry benchmark provides reliable deadbolt operation with key outside and thumbturn inside control.

Professional Features & Benefits

• Door Compatibility: Standard 2 3/4" backset with 1 3/4" door thickness for common commercial door applications.
• Heavy-Duty Construction: One-piece hardened steel deadbolt provides exceptional strength and tamper resistance for high-security applications.
• Grade 1 Performance: ANSI/BHMA A156.13 Series 1000 certification ensures commercial-grade durability and reliability standards.
• Universal Installation: Non-handed design eliminates field configuration requirements and simplifies inventory management.
• Key System Compatibility: Available with all Sargent key systems including Degree, Signature, KESO, and XC for comprehensive access control integration.
• Fire Safety Compliance: UL and ULC listed for use in fire-rated door assemblies and life safety applications.
• Complete Package: Includes 2 keys and curved lip strike for immediate installation readiness.
• Manufacturer Warranty: 10-year limited warranty provides long-term protection and confidence.

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

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Sargent Quality?

Sargent mortise deadlock products deliver professional-grade reliability with hardened steel construction and Grade 1 ANSI/BHMA certification for demanding commercial applications. The 10-year limited warranty and UL/ULC fire safety listings demonstrate the manufacturer's commitment to quality and code compliance. Engineered for demanding commercial applications where dependable deadbolt security is essential.

Product Documentation & Resources

• [Catalog] SARGENT Full Line Catalog