Schlage Residential F51A Georg...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$69.00
$39.51
Schlage Residential Schlage Residential F51A - Entry Lock - Georgian Knob, C Keyway with 16211 Latch and 10063 Strike SCR-F51A-KEYED-GEO

Schlage Residential F51A Georgian Knob Entry Lock with C Keyway Single Cylinder Function

(No reviews yet) Write a Review

Model: F51A GEO 605
$69.00
$39.51
Selected Finish is
Selected Rose Design is
Selected Keying is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$69.00
$39.51
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

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

  1. 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.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for the cylindrical lockset installation.
  3. Prepare door by drilling required holes per manufacturer specifications for the F51A model including cross bore and edge bore dimensions.
  4. Install the 16211 latch assembly and 10063 strike hardware, securing all mounting components per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth knob operation with proper key function and interior turnbutton operation.
  6. 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

Schlage Residential F51A GEO 605 – Frequently Asked Questions

1) Will the Schlage F51A Georgian knob entry lock fit a 1-3/8 inch door?
Yes. The F51A knob entry lock covers a door thickness range of 1-3/8 to 1-3/4 inches, so it works on both older interior-weight doors and standard 1-3/4 inch entry doors without any spacer kit. It also ships with a dual backset latch that adjusts to either 2-3/8 or 2-3/4 inch backset, which are the two bores you will find in existing residential doors, so you do not have to measure the backset before ordering.
2) Do I have to specify handing when ordering a Schlage F51A entry knob?
No handing to specify. The F51A is non-handed, so the same lock works on a left hand or right hand door, inswing or outswing. What you do have to pick is the keying: keyed different, keyed alike, or no cylinder at all, plus the finish and rose design.
3) Will the F51A latch into the strike plate already in my door frame?
Most likely. The F51A comes with a 1-5/8 by 2-1/4 inch full lip radius corner strike (part 10-027) and a 1 by 2-1/4 inch latch with a 1/4 inch radius corner faceplate and 1/2 inch throw. That 1/2 inch throw and the 2-1/4 inch strike height match the standard residential frame prep, so if your existing strike is a radius corner full lip of that size you can leave it in place. If your frame has a square corner strike cutout, use the included strike and file or shim the mortise to suit.
4) Can I key several Schlage F51A entry knobs alike across a rental property?
Yes. Keying is an order option on the F51A: keyed different is the standard, keyed alike is available for running multiple doors on one key, and there is a no-cylinder option if you are supplying your own cylinders or having a locksmith key the job. The cylinder is a 5-pin C keyway, which is the standard Schlage residential section, so it keys into an existing Schlage C key system.
5) What does single cylinder mean on a Schlage F51A entry lock, and is there a key needed to get out?
No key to exit. Single cylinder means the key operates from the outside only; inside there is a turnbutton. The keyed entry function unlocks when the door is opened from the inside, so you can leave quickly, and you relock either by keying the outside cylinder or by rotating the interior turnbutton before you leave. That is the behavior you want on a unit entry door where a tenant should never be searching for a key on the way out.
6) Is a Schlage F51A knob lock rated for a fire door?
The F51A function is covered by Schlage's UL listing for 3-hour fire doors, alongside the F10, F40 (CSV only) and F80 functions. It also carries ANSI/BHMA A156.2-2017 Commercial Grade 2 and ANSI/BHMA A156.39-2015 Residential Grade AAA certification. For a corridor or stair door in a multi-family building, check your local code on knobs versus levers, since many jurisdictions require lever trim on accessible routes.
7) Can the Schlage F51A replace an existing knob lock on an apartment door?
In most cases, yes, provided the existing hole is a standard cylindrical bore. The F51A is a bored cylindrical lockset that drops into the same prep a knob lock already occupies, it is non-handed so orientation is not a concern, and the dual backset latch adjusts to whichever of the two common backsets the door was drilled for. Where it will not work is a mortise lock door with a rectangular pocket in the edge, or a door thinner than 1-3/8 or thicker than 1-3/4 inches.
8) What should I specify instead of the Schlage F51A if the opening needs credential access rather than keys?
The F51A is a mechanical, non-electronic lock keyed to a C keyway cylinder. Where the opening needs card or phone credentials, the Paxton PaxLock Pro Galaxy lever latch lock is battery powered with a dual frequency reader at 13.56 MHz and 2.4 GHz plus Bluetooth and AES128 encryption, and is built for 1-3/4 inch door thickness. Note the trim difference: the PaxLock Pro is a lever, while the F51A is a knob, and the PaxLock Pro is fixed to 1-3/4 inch doors where the F51A covers 1-3/8 inch to 1-3/4 inch.
9) What is the closest Grade 2 keyed entry alternative to the Schlage F51A Georgian knob lock?
The Delaney Katana is a Grade 2 single cylinder handleset with interior trim, so it carries the same Grade 2 rating and the same single cylinder keyed function as the F51A. The difference is form: the F51A is a cylindrical bored lockset with a Georgian knob outside, while the Katana presents a full handleset grip on the exterior. If the door prep is a standard bored opening and the knob look is what is wanted, stay with the F51A; if the exterior calls for a handleset face, the Katana holds the grade.
10) Can a Delaney Traditional deadbolt replace a Schlage F51A entry knob?
No. The Delaney Traditional is a Grade 3 single cylinder deadbolt with a cylinder by thumbturn function, which means it locks the door but carries no latch operation and no handle. The F51A is a keyed entry cylindrical lockset with a Georgian knob and a keyed entry function that unlocks when the door is opened from the inside. On an entry door the two are normally used together, deadbolt in the upper bore and the F51A in the lower, not one in place of the other.
11) Is the Emtek Select Brass Conical Stem Dark Walnut knob an equivalent to the Schlage F51A?
It looks like a match because both are knobs, but the function is different. The Emtek Conical Stem Dark Walnut knob is a passage, hall and closet function, so it has no cylinder and no key. The F51A is a single cylinder keyed entry lock. Use the Emtek knob on an interior door that only needs to latch, and the F51A where the opening has to be locked and keyed.
12) I want a keyed entry door with a knob on the inside but a gripped handle outside. What do I use instead of the F51A?
The Bravura 913-Savannah, 915-Jacksonville and 971-Austin are Grade 2 handlesets supplied with a 615 interior plate and a 906-Macon interior knob, so the inside of the door still operates on a knob while the exterior is a handleset grip. The F51A carries a Georgian knob on both faces. If the interior needs a lever instead, the Bravura 973-Montgomery is a Grade 2 handleset with a 672 interior plate and a 939-Charlotte interior lever.
13) Should I use a knob entry lock like the Schlage F51A or a handleset on a front door?
Two different jobs. The F51A is a bored cylindrical knob lock that goes in a single cross bore and handles both latching and keyed security in one unit, which is what you want on unit doors, back doors, and side entries where you are matching a fleet of openings cheaply and installing with a screwdriver. A handleset like the Bravura 913-Savannah or the Delaney Katana is a two-piece exterior grip with a separate deadbolt above it, for a formal front entry where you want the deadbolt security and the taller escutcheon look. If you only need the deadbolt itself, the Delaney Traditional 200-B is a cylinder by thumbturn single cylinder deadbolt.
14) What is the difference between the Schlage F51A and a Grade 3 residential lock?
Grade level is the difference that shows up in a rental. The F51A is certified ANSI/BHMA Grade 2, the commercial-duty residential tier, on a zinc and steel substrate. Comparable handsets like the Callan Visconti and Callan Briona, and the Delaney Avino, are Grade 3, the lighter residential tier. The Delaney Katana and the Bravura Savannah, Jacksonville, Austin and Montgomery handsets are Grade 2 like the F51A. On a high-turnover apartment or a door that gets used dozens of times a day, stay at Grade 2.
15) Does the Schlage F51A come with the latch and strike, or do I order those separately?
Everything for the door is in the box. The F51A ships with the 16-086 dead latch, a dual option round and drive-in unit that covers both 2-3/8 and 2-3/4 inch backsets, and the 10-027 full lip radius strike at 2-1/4 by 1-5/8 inches. You supply nothing but a screwdriver and a drilled door. If the door is not bored, you will need a standard cylindrical lock bore kit; the Schlage F10/F40/F51 door prep template is published by the manufacturer.
16) Is a knob lock acceptable on an ADA accessible unit door, or do I need a lever?
The F51A is a knob, and knob trim is generally not accepted on accessible routes because it requires grasping and twisting. For a unit door that has to meet accessibility requirements, specify lever trim instead. Confirm what your jurisdiction requires for the door in question, since accessible-route rules vary by building type.
17) Which single cylinder deadbolt pairs with a Schlage F51A on a contemporary round trim entry door?
The Delaney Contemporary is a Grade 3 single cylinder round deadbolt with a cylinder by thumbturn function, which gives a round exterior trim to sit above a bored entry lock. The F51A carries a Georgian knob with a single cylinder keyed entry function, so pairing the two keeps one key at the exterior face and a thumbturn on the inside for both. Keying between separate manufacturers is not interchangeable, so plan on two keys unless the deadbolt is specified on a matching cylinder.
18) Is the Delaney Avino handleset the same rating as the Schlage F51A?
No. The Delaney Avino is a Grade 3 single cylinder handleset with interior trim, while the F51A is rated Grade 2. Within the Delaney handlesets, the Katana is the Grade 2 option and the Avino is Grade 3, so a facility standardizing on Grade 2 entry hardware would look at the Katana or stay with the F51A.
19) What finishes and rose styles does the Schlage F51A Georgian knob come in?
Ten finishes: 505 Lifetime Brass, 605 Bright Brass, 608 Satin Brass, 609 Antique Brass, 619 Satin Nickel, 620 Antique Nickel, 621 Distressed Nickel, 622 Matte Black, 625 Bright Chrome, and 716 Aged Bronze. The knob is the Georgian design, and you pick the rose separately from Addison, Alden, Brookshire, Camelot, or Collins. That is how you match new locks to the trim already on the other doors in a building rather than replacing a whole floor of hardware to keep the look consistent.
How fast can I get the Schlage Residential F51A GEO 605 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Schlage Residential F51A GEO 605 come with a warranty?
Absolutely. The Schlage Residential F51A GEO 605 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schlage Residential F51A GEO 605?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Schlage Residential F51A GEO 605 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!