Schlage Residential F51A Siena Knob Entry Lock with C Keyway

Schlage Residential F51A Siena Knob Entry Lock with C Keyway

Professional Residential Entry Lock Solution

The Schlage Residential F51A Siena Knob Entry Lock delivers Grade 2 commercial-grade security for residential applications. This single cylinder keyed entry lock features a 5-pin C keyway cylinder with dual backset compatibility for 2-3/8" or 2-3/4" installations. Designed for door thickness range of 1-3/8" to 1-3/4", this non-handed lock includes a 1" x 2-1/4" universal latch and full lip radius strike for complete installation.

Professional Features & Benefits

• Door Thickness Compatibility: Accommodates 1-3/8" to 1-3/4" doors with dual backset options for 2-3/8" or 2-3/4" installations.
• Grade 2 Commercial Construction: ANSI/BHMA A156.2-2017 Commercial Grade 2 certified with zinc and steel substrate for enhanced durability.
• Keyed Entry Function: Single cylinder operation unlocks when door is opened from inside, with manual turnbutton locking from interior or key operation from exterior.
• Universal Installation Design: Non-handed configuration with easy 3-step installation requiring only a screwdriver for setup.
• Complete Hardware Package: Includes 16211 universal latch (1" x 2-1/4", 1/2" throw) and 10063 full lip radius strike (1-5/8" x 2-1/4") for complete installation.
• 5-Pin Security Cylinder: C keyway configuration with keyed alike (KA4) operation and two keys per lock for convenient access control.
• Fire Door Compatibility: Available UL Listed for 3-hour fire door applications (F51A function) for enhanced safety compliance.
• 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

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/8" to 1-3/4"), backset selection (2-3/8" or 2-3/4"), and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the universal latch and strike installation.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for the cylindrical lock configuration.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications, ensuring proper alignment of the Siena knob assembly.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion, testing both key and turnbutton functions.
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

• Residential Entry Doors
• Multi-Family Housing Units
• Apartment and Condominium Complexes
• Single-Family Home Security
• Residential Property Management
• Home Builder and Contractor Projects
• Residential Renovation and Upgrade Projects

Why Choose Schlage Residential Quality?

Schlage Residential F51A entry locks deliver professional-grade reliability with Grade 2 commercial certification and zinc and steel construction for demanding residential applications. The 10 Year manufacturer warranty provides added confidence for long-term performance. Engineered with easy 3-step installation and dual backset compatibility, this lock combines security with convenient residential functionality.

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)