Falcon K571 Grade 1 Corridor Function Cylindrical Lock with Push-Turnbutton Operation

Falcon K571 Grade 1 Corridor Function Cylindrical Lock with Push-Turnbutton Operation

Professional Grade 1 Cylindrical Lock for High-Traffic Commercial Applications

The Falcon K571 delivers certified ANSI/BHMA Grade 1 performance in a corridor function cylindrical lock designed for demanding commercial environments. This heavy-duty lock accommodates door thickness from 1-3/8" to 2-1/4" with a standard 2-3/4" backset and features non-handed operation for versatile installation. Built with pressure-cast solid levers and heavy-wrought brass or bronze roses, the K571 is UL10C 3 hour A label fire rated and backed by a 10-year warranty for reliable long-term performance.

Professional Features & Benefits

• Door Compatibility: Accommodates door thickness from 1-3/8" to 2-1/4" with 2-3/4" backset for standard commercial door preparations.
• Heavy-Duty Grade 1 Construction: Certified ANSI/BHMA A156.2 Series 4000 Grade 1 performance for high-traffic and high-abuse commercial applications.
• Reinforced Security Design: Four screws through-bolted construction provides added strength and clutching lever design prevents damage when locked lever is operated.
• Fire-Rated Performance: UL10C 3 hour A label certification ensures compliance with fire safety requirements for commercial buildings.
• Universal Keying Compatibility: Conventional cylinders or interchangeable core (SFIC) keying compatible with Falcon and other manufacturer SFIC products including Schlage C keyway.
• Non-Handed Installation: Non-handed levers with security caps simplify field installation and prevent undesired lever removal and sag during continual use.
• Professional Construction: Pressure-cast solid levers with no inserts, heavy-wrought brass or bronze roses, and stainless steel springs for durability and corrosion resistance.
• Manufacturer Warranty: 10-year warranty provides added confidence and protection for commercial installations.

Technical Specifications

• ANSI/BHMA: F90-1
• Backset (Distance): 2-3/4"
• Commercial/Residential: Commercial
• Department: Door Hardware
• Door Hand Direction: Non-Handed
• Door Thickness Range: 1-3/8" to 2-1/4"
• Duty Level: Heavy Duty
• Electronic: No
• Fire Rating: Yes
• Grade: Grade 1
• Keyed: Yes
• Keyed Function: Single Cylinder
• Lock Function: Corridor
• Lock Type: Cylindrical
• Product Attribute: Cylindrical Locks
• Product Category: Mechanical Locks
• Product Function: Corridor/Dormitory
• Product Group: Mechanical Locks
• Product Model: K571
• Product Subgroup: Bored Locksets
• Product Substrate: Brass or Steel, Zinc plated and dichromated for rust resistance. Springs are Stainless Steel.
• Product Type: Leversets
• Series: K Series
• Standard Cylinder: P - 6-Pin, keyed 5-pin, Falcon G keyway, Keyed different (KD)
• Standard Latch: 1-1/8" x 2-1/4", Square corner faceplate, 1" housing diameter, 1/2" Throw, 2-3/4" backset
• Standard Strike: 1-1/4" x 4-7/8", ANSI, Square curved lip corner, no box
• Subcategory: Cylindrical Locks
• UL Listing Type: UL Listed (3 Hour A Label)

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1-3/8" to 2-1/4", 2-3/4" backset, and standard cylindrical lock bore dimensions.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper alignment.
3. Prepare door by drilling required 2-1/8" cross bore and 1" edge bore holes according to ANSI A115 standards and manufacturer specifications.
4. Install latch assembly with 1-1/8" x 2-1/4" faceplate and secure strike plate to frame with provided fasteners per manufacturer torque specifications.
5. Mount lock chassis with four through-bolted screws ensuring proper alignment and secure attachment to door structure.
6. Test corridor function operation including key override, push-turnbutton locking, and lever 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 Falcon Quality?

Falcon K571 cylindrical locks deliver professional-grade reliability with heavy-duty Grade 1 construction and UL10C 3 hour fire rating for demanding commercial applications. The through-bolted design with clutching lever protection and stainless steel springs ensures dependable performance under high-traffic conditions. Backed by a 10-year manufacturer warranty and certified to ANSI/BHMA standards, this lock provides the durability and security required for critical commercial door hardware installations.