Sargent 8290-ET Classroom Security Holdback Function Heavy Duty Double Cylinder Mortise Lock with Escutcheon Trim

Sargent 8290-ET Classroom Security Holdback Function Heavy Duty Double Cylinder Mortise Lock with Escutcheon Trim

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8290-ET represents the industry benchmark for commercial mortise locks, delivering maximum security, performance, and durability with high-quality components. This Grade 1 heavy-duty lever-style mortise lock features a 2-3/4" backset, 1-3/4" door thickness compatibility, and 3/4" latchbolt throw for reliable operation. The multi-functional lock body accommodates classroom security holdback function with field-reversible handing for installation flexibility.

Professional Features & Benefits

• Heavy-Duty Construction: Grade 1 operational rating with patented design and construction for maximum durability in demanding commercial applications.
• Exceptional Durability: UL Cycle Above and Beyond test completed at 16 million cycles for long-term reliability in high-traffic environments.
• Classroom Security Function: Specialized holdback function designed for educational facility security requirements and emergency lockdown procedures.
• Universal Key System Compatibility: Integrates with all SARGENT key systems including Degree, Signature, KESO, and XC for flexible security management.
• Multi-Functional Design: Available in 56 different functions with multifunctional lockbody allowing on-site function switching to reduce inventory requirements.
• Comprehensive Certifications: UL 10C Fire-Rated up to 3 hours, ANSI/BHMA A156.13 Series 1000 Grade 1, ADA compliant, and NFPA 80 compliant for code compliance assurance.
• Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.
• Vandal-Resistant Security: Multiple security features provide additional resistance against vandalism and unauthorized entry attempts.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including 1-3/4" door thickness, 2-3/4" backset, and field-reversible handing configuration.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper mortise preparation.
3. Prepare door and frame by drilling required holes and routing mortise cavity as specified in manufacturer instructions.
4. Install all mounting hardware including curved lip strike and secure the lock body to door per manufacturer torque specifications.
5. Adjust operational components for proper alignment, 3/4" latchbolt throw, 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

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

Why Choose Sargent Quality?

Sargent mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in independent UL testing. The 10-year limited warranty with 2-year electrical component coverage provides exceptional protection for demanding commercial applications. Engineered with comprehensive certifications including UL 10C Fire-Rating up to 3 hours and ANSI/BHMA Grade 1 operational rating, these locks represent the industry benchmark where dependable performance and maximum security are essential.