Sargent 8XU15 Grade 1 Passage Knob Lock with 2-3/4" Backset

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

Professional Non-Keyed Cylindrical Lock Solution

The Sargent 8X Line Series Grade 1 Passage Knob Lock delivers commercial-grade security with ANSI/BHMA Grade 1 certification for demanding applications. This non-keyed knob lock features a standard 2-3/4" backset with adjustable range from 2-3/8" to 2-3/4", accommodating door thicknesses from 1-3/8" to 1-3/4". UL-cUL fire-rated up to 3 hours and designed for both interior and exterior applications with reversible, self-adjusting latches.

Professional Features & Benefits

• Door Compatibility: Accommodates door thicknesses from 1-3/8" to 1-3/4" with adjustable backset from 2-3/8" to 2-3/4" for versatile installation options.
• Grade 1 Construction: 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.
• Dual Application Capability: Suitable for both interior and exterior applications with weather-resistant construction.
• Cylinder Compatibility: Accepts SARGENT standard, Signature and Degree cylinders for flexible master key system integration.
• Non-Handed Operation: Universal design eliminates handing requirements for streamlined inventory and 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 non-handed installation.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper alignment.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for cylindrical lock installation.
4. Install all mounting hardware and secure the knob lock to door and frame per manufacturer torque specifications.
5. Adjust latch operation for proper alignment and verify self-adjusting latch conforms to door bevel for smooth operation.
6. Test knob 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 8X Line Series knob locks deliver professional-grade reliability with Grade 1 construction designed and tested for robust commercial applications. UL-cUL fire-rated up to 3 hours with 3-year limited warranty coverage provides confidence for demanding installations. Engineered for high-traffic commercial environments where dependable performance and code compliance are essential.