Falcon X511 Heavy Duty Grade 1 Cylindrical Entry/Office Lock with Interchangeable Core

Falcon X511 Heavy Duty Grade 1 Cylindrical Entry/Office Lock with Interchangeable Core

Professional-Grade Cylindrical Lock for High-Security Commercial Applications

The Falcon X511 delivers heavy-duty Grade 1 performance for entrance and office applications requiring maximum security and durability. This cylindrical knob lock accommodates door thickness from 1-3/8" to 2-1/4" with a standard 2-3/4" backset and features interchangeable cores compatible with SFIC products from other manufacturers. UL listed with 3-hour fire rating and ANSI/BHMA A156.2 Series 4000 Grade 1 certification ensures code compliance for demanding commercial installations.

Professional Features & Benefits

• Door Compatibility: Accommodates door thickness from 1-3/8" to 2-1/4" with standard 2-3/4" backset for versatile installation options.
• Heavy-Duty Construction: Brass or cold-formed steel construction with zinc dichromate coating provides exceptional rust resistance and durability.
• Interchangeable Core System: SFIC-compatible cores allow quick, convenient re-keying and work with cores from other manufacturers for flexible key management.
• Reinforced Rose Design: Heavy-wrought brass, bronze or stainless steel roses over steel through-bolted rose inserts provide added strength for high-security applications.
• Grade 1 Certification: ANSI/BHMA A156.2 Series 4000 Grade 1 certified for maximum durability and performance in commercial applications.
• Fire Rating Compliance: UL listed with 3-hour A label fire rating meets stringent building code requirements.
• XC Construction Option: Optional stainless steel and nonferrous chassis with stainless steel trim resists corrosion in marine and moisture-exposed environments.
• Manufacturer Warranty: 10-year limited warranty provides long-term protection and confidence.

Technical Specifications

• ANSI/BHMA: F109
• Backset (Distance): 2-3/4",Strike,5185 - Square Corner
• 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
• Fire Rating: Yes
• Grade: Grade 1
• Keyed: Yes
• Keyed Function: Single Cylinder
• Lock Function: Entrance/Office
• Lock Type: Cylindrical
• Product Attribute: Cylindrical Locks
• Product Category: Mechanical Locks
• Product Function: Entrance/Office
• Product Group: Mechanical Locks
• Product Subgroup: Bored Locksets
• Product Type: Knobsets
• Series: X Series
• 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 between 1-3/8" and 2-1/4", 2-3/4" backset, and handing as applicable to this 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

• Commercial Office Buildings
• Government and Military Facilities
• Marine Environment Applications
• Educational Institutions
• Healthcare Facilities
• Industrial and Warehouse Facilities
• High-Security Commercial Properties

Manufacturer Resources

• Falcon X Series Data Sheet
• Falcon Locks Catalog

Why Choose Falcon Quality?

Falcon X511 cylindrical locks deliver professional-grade reliability with heavy-duty brass or cold-formed steel construction and zinc dichromate coating for superior rust resistance. ANSI/BHMA Grade 1 certification and UL 3-hour fire rating ensure code compliance, while the 10-year limited warranty provides long-term protection. Engineered for demanding commercial applications where maximum security and dependable performance are essential.