Sargent 8247-ET Heavy Duty Single Cylinder Mortise Lock with Deadbolt - Grade 1 Front Door Function

Sargent 8247-ET Heavy Duty Grade 1 Mortise Lock with Deadbolt and 2 3/4" Backset

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8247-ET represents the industry benchmark for commercial mortise locks, delivering maximum security, performance, and durability with high-quality components. This Grade 1 heavy duty single cylinder lock features a multi-functional lock body with 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw. Tested to 16 million cycles with UL 10C fire rating up to 3 hours, this lock integrates with all SARGENT key systems including Degree, Signature, KESO, and XC.

Professional Features & Benefits

• Door Compatibility: Designed for 1 3/4" door thickness with 2 3/4" backset and 3/4" latchbolt throw for standard commercial door applications.
• Heavy-Duty Durability: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for exceptional longevity in high-traffic commercial applications.
• Grade 1 Performance: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification ensures maximum security and reliability for demanding applications.
• Fire-Rated Construction: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
• Universal Key System Integration: Compatible with all SARGENT key systems (Degree, Signature, KESO, and XC) for flexible master keying options.
• Multi-Functional Design: Available in 56 different functions including electromechanical, security and monitoring options with field-reversible handing.
• EcoFlex Technology: Electromechanical versions operate from 12 to 24VDC with EcoFlex technology reducing power consumption up to 96% for energy efficiency.
• Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.

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 handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and 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 locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles with independently verified testing. 10-year limited warranty with 2-year coverage on electrical components provides comprehensive protection. Engineered for demanding commercial applications where dependable performance and maximum security are essential.