Sargent 8251-ET Storeroom Deadbolt Function Mortise Lock with Escutcheon Trim - Grade 1 Heavy Duty Single Cylinder

Sargent 8251-ET Grade 1 Storeroom Deadbolt Mortise Lock with Escutcheon Trim - Heavy Duty Single Cylinder

Industry Benchmark Heavy-Duty Mortise Lock with Maximum Security Performance

The Sargent 8200 Series mortise lock represents the industry benchmark for commercial mortise locks, delivering maximum security, performance, and durability with high-quality components. This Grade 1 storeroom deadbolt function lock features heavy-duty construction with a 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw. The multi-functional lock body design offers exceptional versatility with field-reversible handing and integrates with all SARGENT key systems including Degree, Signature, KESO, and XC.

Professional Features & Benefits

• Precise Door Specifications: Standard 2 3/4" backset depth with 1 3/4" door thickness and 3/4" latchbolt throw for reliable operation and proper door preparation.
• Exceptional Durability Rating: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched reliability in high-traffic commercial applications.
• Grade 1 Security Performance: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification with curved lip strike and heavy-duty construction for maximum security resistance.
• Heavy-Duty Construction: Patented design and construction with high-quality components provide exceptional durability for commercial applications.
• Universal Key System Integration: Compatible with all SARGENT key systems (Degree, Signature, KESO, and XC) with 6 pin or 7 pin cylinder options for flexible access control.
• Field-Reversible Design: Handing can be changed on-site without additional parts, reducing inventory requirements and installation complexity.
• Comprehensive Fire Rating: UL 10C positive pressure and UL-cUL Fire-Rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
• Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for long-term 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 proper mortise pocket dimensions.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for precise mortise lock installation.
3. Prepare door and frame by cutting mortise pocket and drilling required holes for lock body, cylinder, and strike plate per manufacturer specifications.
4. Install lock body into mortise pocket and secure cylinder and escutcheon trim components to door per manufacturer torque specifications.
5. Adjust latchbolt and deadbolt operation for proper alignment, smooth operation, and secure latching with 3/4" throw engagement.
6. Test lock operation with keys and verify proper function of storeroom deadbolt mechanism. Make final adjustments as needed and refer to manufacturer documentation for complete installation details.

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 8200 Series 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 long-term protection. Engineered for demanding commercial applications where maximum security, durability, and dependable performance are essential for protecting people and property.