Schlage Residential FC21 Alexandria Glass Knob by Clybourn Lever Passage/Privacy Cylindrical Lock
Versatile Residential Lock with Dual Function Design
The Schlage Residential FC21 combines the elegant Alexandria glass knob with the contemporary Clybourn lever in a versatile passage/privacy lock configuration. This Grade 2 certified cylindrical lock accommodates door thicknesses from 1-3/8" to 1-3/4" with dual backset options of 2-3/8" or 2-3/4". The lock features a 1" x 2-1/4" latch with 1/2" throw and includes a full lip radius strike for reliable operation in residential applications.
Professional Features & Benefits
- Dual Function Operation: Passage is the default function with privacy pushbutton conversion capability for versatile room applications.
- Door Compatibility: Accommodates door thicknesses from 1-3/8" to 1-3/4" with dual backset latches fitting either 2-3/8" or 2-3/4" backsets.
- Grade 2 Certification: ANSI/BHMA A156.2-2017 Grade 2 and ANSI/BHMA A156.39-2015 Residential Grade AAA certified for reliable performance.
- Stainless Steel Construction: Durable stainless steel substrate provides long-lasting performance and corrosion resistance.
- Emergency Access Feature: Privacy function can be opened from outside with small emergency unlock tool for safety and convenience.
- Easy Installation: Features simple 3-step installation requiring only a screwdriver for quick setup.
- Fire Door Compatible: Available UL Listed for 90 minute fire door applications when required.
- Manufacturer Warranty: 10 Year warranty coverage for added confidence and protection.
Standard Features
Certification:ANSI/BHMA A156.2-2017 Grade 2
ANSI/BHMA A156.39-2015 Residential Grade AAA
Available UL Listed for 90 minute fire door
Latch: 1"x 2-1/4", 1/4" radius corner faceplate, 1" housing diameter, 1/2" throw, circular drive-in included, universal latch
Strike: 1-5/8" x 2-1/4" radius corner, full lip
Backset: Dual backset latches, fits either 2-3/8" or 2-3/4" backsets
Cylinder: 5-Pin, C keyway, keyed alike (KA4)
Door Range: 1-3/8" – 1-3/4"
Keys: Two per lock, 5-pin, C section
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness between 1-3/8" and 1-3/4" and appropriate backset measurement.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for the cylindrical lock installation.
- Prepare door by drilling required holes per manufacturer specifications for the latch, strike, and lock components.
- Install the spring latch assembly and secure the cylindrical lock mechanism to door per manufacturer torque specifications.
- Adjust operational components for proper alignment and smooth operation of both passage and privacy functions throughout the full range of motion.
- Test device operation to verify proper function of both passage mode and privacy pushbutton conversion, including emergency unlock capability. Refer to manufacturer documentation for complete installation details and troubleshooting.
Professional Applications
- Residential Interior Doors
- Bedroom and Bathroom Privacy Applications
- Home Office and Study Rooms
- Guest Room and Secondary Bedroom Access
- Multi-Family Residential Properties
- Apartment and Condominium Units
- Senior Living Facility Private Rooms
Why Choose Schlage Residential Quality?
Schlage Residential FC21 locks deliver professional-grade reliability with stainless steel construction and Grade 2 ANSI/BHMA certification for demanding residential applications. The 10 Year warranty provides added confidence and long-term protection. Engineered with dual function capability and emergency access features, this lock combines elegant design with dependable performance for modern residential security needs.
Manufacturer Resources
Product Specs
- Series:
- FC Series
- Subcategory:
- Bored Locksets
- Grade:
- Grade 2
- Warranty:
- 10 Year
- Standard Strike:
- 10-027: Full Lip Radius Strike, 2-1/4" x 1-5/8"
- Standard Latch:
- 16-600: Spring Latch, Dual Option (Round, Drive-in)
- Keyed Function:
- Non-Keyed
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Bored Locksets
- Keyed:
- No
- Electronic:
- No
- Commercial/Residential:
- Residential
- Product Function:
- Passage/Hall/Closet
- Function Description:
- Passage is default function; Insert privacy pushbutton on interior side of lock to convert to privacy; Can be opened from outside with small emergency unlock too
- Lock Type:
- Cylindrical
- Product Type:
- Leversets
- Lock Function:
- Passage/Privacy
- Handle Design:
- Alexandria Knob x Clybourn Lever
- Handle Type:
- Lever and Knob
- Lever/Knob Design:
- Alexandria Knob x Clybourn Lever
- Product Attribute:
- Cylindrical Locks
- Product Model:
- FC21
- Door Hand Direction:
- Non-Handed
- Door Thickness Range:
- 1-3/8" to 1-3/4"
- Product Substrate:
- Stainless Steel
- Product Category:
- Mechanical Locks
- Department:
- Door Hardware