Sargent 8XG37 Grade 1 Classroom Single Cylinder Knob Lock with 2-3/4" Backset

Sargent 8X Line Grade 1 Classroom Single Cylinder Knob Lock with 2-3/4" Backset

Professional Grade 1 Classroom Security Solution

The Sargent 8X Line Grade 1 Classroom Single Cylinder Knob Lock delivers ANSI/BHMA Grade 1 performance with 2-3/4" standard backset and compatibility with door thicknesses from 1-3/8" to 1-3/4". This UL-cUL fire-rated knob lock features reversible, self-adjusting latches and accepts SARGENT standard, Signature and Degree® cylinders for flexible master key system integration. Built for both interior and exterior applications with robust construction designed and tested for demanding commercial environments.

Professional Features & Benefits

• Door Compatibility: Accommodates door thicknesses from 1-3/8" to 1-3/4" with standard 2-3/4" backset for versatile installation options.
• Grade 1 Durability: ANSI/BHMA A156.2 Series 4000 Grade 1 certification ensures heavy-duty performance for high-traffic commercial applications.
• Fire Safety Compliance: UL-cUL fire-rated up to 3 hours provides critical life safety protection in commercial buildings.
• Reversible Latch Design: Self-adjusting latches automatically conform to door bevel for simplified installation and reliable operation.
• Cylinder Flexibility: Accepts SARGENT standard, Signature and Degree® cylinders for seamless integration with existing or new master key systems.
• Interior/Exterior Versatility: Suitable for both interior and exterior applications with weather-resistant construction.
• Complete Installation Package: Includes 2 keys with 1/2" latchbolt throw and T-Strike curved lip strike for immediate installation.
• Manufacturer Warranty: 3-year limited warranty provides 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 from 1-3/8" to 1-3/4", backset requirements from 2-3/8" to 2-3/4", and handing as applicable to this non-handed 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

• 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 8X Line Series knob locks deliver professional-grade reliability with ANSI/BHMA Grade 1 certification and UL-cUL fire rating up to 3 hours for demanding commercial applications. The 3-year limited warranty and robust construction ensure dependable performance in high-traffic environments. Engineered for versatile door requirements with flexible cylinder compatibility and reversible latch design for simplified installation and long-term reliability.