Schlage Residential F51A Andov...
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$87.00
$47.40
Schlage Residential Schlage Residential F51A - Entry Lock - Andover Knob, C Keyway with 16211 Latch and 10063 Strike SCR-F51A-KEYED-AND

Schlage Residential F51A Andover Knob Entry Lock with C Keyway Single Cylinder

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Model: F51A AND 626
$87.00
$47.40
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$87.00
$47.40
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Schlage Residential F51A Andover Knob Entry Lock with C Keyway Single Cylinder

Professional Residential Entry Lock Solution

The Schlage Residential F51A Andover Knob Entry Lock delivers Grade 2 commercial-quality security for residential applications. This single cylinder 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", the F51A includes a 1" x 2-1/4" latch with 1/2" throw and full lip radius strike for reliable operation.

Professional Features & Benefits

  • Door Compatibility: Fits door thickness range of 1-3/8" to 1-3/4" with dual backset options for 2-3/8" or 2-3/4" installations.
  • Grade 2 Commercial Quality: ANSI/BHMA A156.2-2017 Commercial Grade 2 and ANSI/BHMA A156.39-2015 Residential Grade AAA certification for superior durability and performance.
  • 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 operation.
  • Professional Latch System: 1" x 2-1/4" latch with 1/4" radius corner faceplate, 7/8" housing diameter, and 1/2" throw for secure latching performance.
  • Complete Strike Package: Includes 1-5/8" x 2-1/4" radius corner full lip strike for proper door frame preparation and secure installation.
  • 5-Pin Security: C keyway cylinder with 5-pin configuration provides reliable keyed access control with two keys included per lock.
  • Easy Installation: 3-step installation process requires only a screwdriver, with universal latch and drive-in design for simplified mounting.
  • 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 range of 1-3/8" to 1-3/4" and backset selection of 2-3/8" or 2-3/4".
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the cylindrical lock installation.
  3. Prepare door by drilling the required 2-1/8" cross bore hole and 1" edge bore hole, plus frame preparation for the full lip radius strike.
  4. Install the latch assembly in the door edge bore and secure the strike plate to the door frame per manufacturer specifications.
  5. Mount the lock mechanism and handles, ensuring proper alignment of the cylinder and turnbutton for smooth operation.
  6. Test lock operation with both key entry from outside and turnbutton operation from inside to verify proper function. 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 Entry Points
  • Residential Side Door Access
  • Multi-Family Housing Projects
  • Residential Renovation Projects

Why Choose Schlage Residential Quality?

Schlage Residential F51A entry locks deliver professional-grade reliability with zinc and steel construction rated for Grade 2 commercial performance and Residential Grade AAA standards. The 10 Year warranty provides long-term confidence in demanding residential applications. Engineered with ANSI/BHMA certification where dependable security and smooth operation are essential for daily home access control.

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 Type:
Knob
Handle Design:
Andover 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 AND 626 – Frequently Asked Questions

1) Will the Schlage F51A Andover knob entry lock fit a 1-3/8 inch door, or does it need a 1-3/4?
Both. The F51A covers a door thickness range of 1-3/8 to 1-3/4 inches, so it handles the standard 1-3/4 inch commercial-weight door and the thinner 1-3/8 inch interior or older entry door with the same lock. Door prep is a 2-1/8 inch cross bore with a 1 inch edge bore. It's non-handed, so you don't specify left or right.
2) My existing door is bored for a 2-3/4 inch backset. Do I have to order a different Schlage F51A?
No. The F51A ships with a dual backset latch that adjusts to either 2-3/8 or 2-3/4 inch, which are the two backsets used on residential and light commercial bored doors. You set it at install, so one part number covers both preps and you can stock a single lock for a mixed building.
3) Will the Schlage F51A latch into the strike plate already in my door frame?
The F51A latch throws 1/2 inch and the faceplate is 1 x 2-1/4 inches with a 1/4 inch radius corner, so it drops into an existing radius-corner latch mortise of that size. Frame side, the lock comes with a 1-5/8 x 2-1/4 inch full lip radius strike, no box. If your frame is prepped for a square-corner strike or a T-strike, you'll be filing the mortise or swapping the strike.
4) Can I get a set of Schlage F51A locks keyed alike for one building?
Yes. Keying is a required selection on the F51A: keyed different is the standard, or you can order keyed alike so one key runs every lock in the group. There's also a key code field if you're matching an existing C keyway code already in the building, and a less-cylinder option if your locksmith is supplying the cylinders. Cylinders are 5-pin, C keyway, with two keys per lock.
5) Is the Schlage F51A rated for a fire door?
UL Listing for 3-hour fire doors is available on the F51A function, along with F10, F40 (CSV only) and F80. It carries ANSI/BHMA A156.2-2017 Commercial Grade 2 and ANSI/BHMA A156.39-2015 Residential Grade AAA, and the ANSI function designation is F81. For a multi-family corridor or stairwell opening where the inspector wants a labeled lock, that Grade 2 rating is above what most residential-only knobs carry.
6) What should I use instead of a Schlage F51A Andover knob if the tenant cannot grip and turn a round knob?
The Schlage F51A Andover is a knob lock, and the Andover knob requires a grasping and twisting motion. For a lever instead, the Bravura 973-Montgomery is a Grade 2 handleset that comes with a 672 interior plate and a 939-Charlotte interior lever, so the inside operation is a lever pull rather than a knob turn. The Delaney Katana 400-KA is a Grade 2 single cylinder handleset with interior trim in the Katana series. Both change the exterior to a handleset, so confirm the door has or can take handleset prep before switching from the F51A single cross bore.
7) Can I use an Emtek Select Brass Conical Stem Dark Walnut knob in place of a Schlage F51A Andover?
Only on an opening that does not need to lock. The Emtek Select Brass Conical Stem Dark Walnut knob is a passage, hall and closet function, so it has no cylinder and no key. The Schlage F51A Andover is a keyed single cylinder lock with keyed entry function. They mount in the same style of bored door prep, which is why they get confused, but a passage knob on an exterior entry leaves the door unsecured. A common pairing is the F51A on the entry and the Emtek passage knob on the interior hall and closet doors of the same unit.
8) If I want credentialed access instead of a mechanical key on the same door, what replaces a Schlage F51A Andover?
The Paxton PaxLock Pro 900-620WT-US Galaxy lever latch lock is the credential-based option. It is a battery powered lever lock with a dual frequency reader at 13.56 MHz and 2.4 GHz, Bluetooth and AES128 encryption, listed for a 1-3/4 inch door thickness and carrying ISED, UL and FCC marks. The Schlage F51A Andover is a mechanical, non-electronic knob lock keyed to a 5-pin C keyway, with the door thickness range spanning 1-3/8 inch to 1-3/4 inch. Switching to the PaxLock Pro changes the trim from knob to lever, adds battery service to the maintenance schedule, and moves keying from cut keys to issued credentials, so it is a fit for common-area and amenity doors rather than a like-for-like swap on a unit entry.
9) What does the F51A keyed entry function actually do when someone opens the door from inside?
Opening from the inside unlocks the outside knob. That's the keyed entry function: you can leave in a hurry without unlocking anything first, and the door won't lock behind you. To lock it, you either turn the key from outside or rotate the interior turnbutton before you pull the door shut. Single cylinder, so there's no key required on the inside.
10) Should I use a knob entry lock like the Schlage F51A or a handleset on a front door?
The F51A is a bored knob lock: one 2-1/8 inch cross bore, keyed outside, turnbutton inside, and it does the latching and the locking in a single unit. A handleset such as the Bravura 913-Savannah or the Delaney Katana is a two-part exterior assembly, typically a gripped handle over a separate deadbolt bore, and it needs the taller door prep. Pick the knob lock when you're replacing like for like on an existing bored door or standardizing across a lot of openings. Pick a handleset when the door is prepped for one, or when you want the deadbolt security a knob lock's 1/2 inch latch doesn't give you.
11) Is a Grade 2 knob lock worth it over a Grade 3 for apartment entry doors?
For unit entry doors in a rental or multi-family building, Grade 2 is the level that survives the traffic. The F51A is ANSI/BHMA Grade 2 with zinc and steel construction. Several residential alternatives sit a rung lower, including the Callan Visconti and Briona handlesets and the Delaney Traditional and Avino, all Grade 3. The Delaney Katana handleset is Grade 2 if you need that rating in a handleset form instead.
12) Does the Schlage F51A come with the latch and strike, or do I order those separately?
Everything for the opening is in the box: the 16-086 dual option dead latch (round and drive-in both included) and the 10-027 full lip radius strike at 2-1/4 x 1-5/8 inches, plus two keys. Install is a three step job with a screwdriver on a door already bored 2-1/8 inch. Note the strike ships without a box, so if your frame needs a dust box behind the strike you'll want to add one.
13) Will a knob lock like the F51A meet ADA requirements for a commercial opening?
A knob is the wrong choice where accessible operation is required, because a knob needs grasping and twisting. The F51A is a knob lock built for residential entry doors, front, side and unit entries. If the opening has to be operable without tight grasping, specify a lever instead. Bravura's 973-Montgomery pairs a handleset with a 939-Charlotte interior lever, and the Emtek Select Brass Conical Stem knob is passage function only, so it won't cover a keyed entry either way.
14) What is the difference between the Schlage F51A Andover entry knob and the Grade 3 Callan and Delaney entry sets?
The difference is the ANSI/BHMA cycle and strength class the hardware is certified to. The Schlage F51A Andover is Grade 2. The Callan Visconti and Callan Briona single cylinder handlesets and the Delaney Avino 400-AV single cylinder handleset are Grade 3. Grade 3 is the residential-duty class and Grade 2 the next class up, so on a rental turnover or a unit entry that sees heavy daily traffic, specifying Grade 2 keeps the whole property to one durability class. All three of those peers are also handlesets with interior trim rather than knob-on-rose sets, so the door prep is not the same as the F51A.
15) I am standardizing entry hardware across a multi-family property. Which entry sets keep the same Grade 2 class as the Schlage F51A Andover?
Four peers hold the same Grade 2 class as the Schlage F51A Andover: the Bravura 913-Savannah, Bravura 915-Jacksonville and Bravura 971-Austin handlesets, each with a 906-Macon interior knob, and the Bravura 973-Montgomery with a 939-Charlotte interior lever. The Delaney Katana 400-KA single cylinder handleset is also Grade 2. Specifying within that group lets unit entries stay on the F51A knob set while building entries and front doors take a handleset, without dropping the property below a single certification class. Keying is the other half of standardizing: the F51A uses a 5-pin C keyway and can be ordered keyed alike so one key covers multiple doors.
16) What finishes and rose styles does the Schlage F51A Andover knob come in?
Eight finishes: 505 Lifetime Brass, 605 Bright Brass, 609 Antique Brass, 619 Satin Nickel, 620 Antique Nickel, 625 Bright Chrome, 626 Satin Chrome and 716 Aged Bronze. Each pairs with a choice of three rose designs, Alden, Addison or Andover, so you can match the trim shape on the rest of the building's hardware without changing the knob. The Andover knob is the handle style throughout.
17) Does the Schlage F51A knob lock need power or wiring?
No power, no wiring, no batteries. The F51A is a purely mechanical cylindrical lock, key outside and turnbutton inside. If you want credential access on the opening instead, an electronic lever lock like the Paxton PaxLock Pro Galaxy is battery powered with a dual frequency 13.56 MHz and 2.4 GHz reader for 1-3/4 inch doors, but that's a different install and a different system to administer.
How fast can I get the Schlage Residential F51A AND 626 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 AND 626 come with a warranty?
Absolutely. The Schlage Residential F51A AND 626 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 AND 626?
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
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