BEST 6K Series Exit Function Grade 2 Non-Keyed Cylindrical Knob Lock

BEST 6K Series Exit Function Grade 2 Non-Keyed Cylindrical Knob Lock

Professional Grade 2 Cylindrical Lock Solution

The BEST 6K Series Exit Function knob lock delivers reliable performance for standard traffic commercial applications. This Grade 2 cylindrical lock features a 2 1/8" bore mounting system with 1/2" throw deadlocking latch and accommodates door thickness from 1 3/8" to 1 7/8". Built with brass and bronze components and internal steel mechanisms with corrosion treatment, this non-keyed exit function lock exceeds ANSI Grade 2 standards for dependable long-term service.

Professional Features & Benefits

• Door Compatibility: Designed for 1 3/8" to 1 7/8" door thickness with 2 1/8" diameter bore for versatile installation options.
• Grade 2 Performance: Exceeds ANSI Grade 2 standards and meets BHMA A156.2, Series 4000, Grade 2 requirements for commercial applications.
• Durable Construction: Brass and bronze component parts with internal steel mechanisms featuring corrosion treatment for normal atmospheric conditions.
• Quick Rekeying System: BEST interchangeable core allows rapid rekeying without disassembly for enhanced security management.
• Fire Rating Compliance: UL Listed for use on 3-hour A label single doors (4' x 8') for code compliance applications.
• Reversible Operation: Lockset reversible for either hand of door without removing keyed knob for installation flexibility.
• Concealed Mounting: Snap-on inside rose with no exposed mounting screws and threaded outside rose adjustable for door thickness.
• Deadlocking Security: 1/2" throw deadlocking latch with standard 2 3/4" x 1 1/8" curved lip strike for reliable latching performance.

Technical Specifications

• Commercial/Residential: Commercial
• Department: Door Hardware
• Duty Level: Medium Duty
• Electronic: No
• Grade: Grade 2
• Handle Type: Knob
• Keyed: No
• Keyed Function: Non-Keyed
• Product Attribute: Cylindrical Locks
• Product Category: Mechanical Locks
• Product Function: Exit
• Product Group: Mechanical Locks
• Product Subgroup: Bored Locksets
• Product Type: Knobsets
• Series: 6K Series
• Standard Latch: 1/2" Throw
• Standard Strike: 2-3/4" x 1-1/8" with Curved Lip
• Subcategory: Bored Locksets

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1 3/8" to 1 7/8"), 2 1/8" diameter bore, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces including 1" or 7/8" diameter latch tube bore.
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 BEST Quality?

BEST 6K Series cylindrical locks deliver professional-grade reliability with brass and bronze construction and internal steel mechanisms rated to exceed ANSI Grade 2 standards. UL Listed for 3-hour fire rating applications and BHMA certified for Series 4000 Grade 2 performance. Engineered for demanding commercial applications where dependable performance and quick rekeying capability are essential.