Schlage Residential F51A Georgian Knob Entry Lock with C Keyway Single Cylinder Function
Professional Residential Entry Lock Solution
The Schlage Residential F51A Georgian Knob Entry Lock delivers reliable single cylinder entrance security with classic Georgian styling. This Grade 2 cylindrical lockset accommodates door thickness from 1-3/8" to 1-3/4" with dual backset options for 2-3/8" or 2-3/4" installations. Features include a 5-pin C keyway cylinder, 1" x 2-1/4" latch with 1/2" throw, and ANSI/BHMA A156.2-2017 Commercial Grade 2 certification for dependable residential applications.
Professional Features & Benefits
- Door Compatibility: Fits door thickness from 1-3/8" to 1-3/4" with dual backset latches for either 2-3/8" or 2-3/4" installations.
- Heavy-Duty Construction: Zinc and steel substrate provides exceptional durability for residential entrance applications.
- Keyed Entry Function: Single cylinder operation unlocks when door is opened from inside, allowing quick exit and easy re-entry with key from outside or manual turnbutton rotation.
- Professional Grade Certification: ANSI/BHMA A156.2-2017 Commercial Grade 2 and ANSI/BHMA A156.39-2015 Residential Grade AAA certified for reliable performance.
- Universal Installation: Dual backset latch design accommodates standard residential door preparations with easy 3-step installation requiring only a screwdriver.
- Complete Hardware Package: Includes 16211 latch (1" x 2-1/4" with 1/4" radius corner faceplate) and 10063 strike (1-5/8" x 2-1/4" radius corner, full lip) for complete installation.
- Security Features: 5-pin C keyway cylinder with keyed alike (KA4) configuration and two keys per lock for convenient access control.
- Manufacturer Warranty: 10 Year warranty coverage for added confidence and long-term protection.
Standard Features
Certification: ANSI/BHMA A156.2-2017 Commercial Grade 2; ANSI/BHMA A156.39-2015 Residential Grade AAA; Available UL Listed for 3-hour fire door (F10, F40 (CSV Only), F51A, F80 functions).
Latch: 1"x 2-1/4", 1/4" radius corner faceplate, 7/8" housing diameter, 1/2" throw, circular drive-in included, universal latch
Strike: 1-5/8" x 2-1/4" radius corner, full lip, no box
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 from 1-3/8" to 1-3/4", backset selection (2-3/8" or 2-3/4"), and non-handed installation compatibility.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for the cylindrical lockset installation.
- Prepare door by drilling required holes per manufacturer specifications for the F51A model including cross bore and edge bore dimensions.
- Install the 16211 latch assembly and 10063 strike hardware, securing all mounting components per manufacturer torque specifications.
- Adjust operational components for proper alignment, latching, and smooth knob operation with proper key function and interior turnbutton operation.
- Test device operation to verify proper keyed entry function, interior unlocking mechanism, and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.
Professional Applications
- Residential Front Door Entry
- Single Family Home Security
- Apartment and Condominium Units
- Townhouse and Duplex Properties
- Residential Rental Properties
- Home Office and Study Entrances
- Multi-Family Residential Buildings
Why Choose Schlage Residential Quality?
Schlage Residential F51A locksets deliver professional-grade reliability with zinc and steel construction rated for Grade 2 commercial and Grade AAA residential performance standards. The 10 Year manufacturer warranty provides long-term confidence in demanding residential applications. Engineered with ANSI/BHMA certified performance where dependable entrance security and classic Georgian styling are essential.
ANSI/BHMA Grade 2 rated mechanical knob or lever with solid brass construction and SecureKey re-keyable cylinder. Support Resources: Manuals Hub: Schlage Manuals, Installation Guides & Templates (https://www.schlage.com/en/home/support/installation-manuals-templates.html) || Installation Guides: F-Series Knob and Lever Installation Instructions (https://www.schlage.com/content/dam/sch-us/documents/pdf/installation-manuals/P515-302.pdf) || Door Prep Templates: F10/F40/F51 Knob and Lever Door Prep Template (https://www.schlage.com/content/dam/sch-us/documents/pdf/installation-manuals/P513-593.pdf) || FAQs & Support: Schlage Product FAQs (https://www.schlage.com/en/home/support/faqs.html)Manufacturer Resources
Product Specs
- Series:
- F 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:
- 16-086: Dead Latch, Dual Option (Round, Drive-in)
- Keyed Function:
- Single Cylinder
- ANSI/BHMA:
- F81
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Bored Locksets
- Keyed:
- Yes
- Electronic:
- No
- Commercial/Residential:
- Residential
- Function Description:
- Keyed entry function unlocks when door is opened from the inside, allowing you to leave quickly, conveniently and re-enter easily; Locked by inserting key and rotating cylinder from outside, or manually rotating interior turnbutton after exit
- Lock Type:
- Cylindrical
- Lock Function:
- Single Cylinder
- Product Type:
- Bored Locksets
- Handle Design:
- Georgian Knob
- Handle Type:
- Knob
- Product Attribute:
- Cylindrical Locks
- Product Model:
- F51A
- Product Function:
- Entrance
- Door Hand Direction:
- Non-Handed
- Door Thickness Range:
- 1-3/8" to 1-3/4"
- Product Category:
- Mechanical Locks
- Product Substrate:
- Zinc and Steel
- Department:
- Door Hardware