Schlage Residential FC21 Alexa...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$180.00
$123.22
Schlage FC21 - Alexandria Glass Knob by Alexandria Glass Knob Passage and Privacy Lock

Schlage Residential FC21 Alexandria Glass Knob Passage and Privacy Cylindrical Lock

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Model: FC21ALXCAM622ALXCEN
$180.00
$123.22
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Selected Rose Design for Alexandria Knob 1 is
Selected Rose Design for Alexandria Knob 2 is

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

$180.00
$123.22
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Schlage Residential FC21 Alexandria Glass Knob Passage/Privacy Cylindrical Lock

Dual-Function Residential Lock with Classic Glass Knob Design

The Schlage Residential FC21 Alexandria Glass Knob Lock provides versatile passage and privacy functionality for residential applications. This Grade 2 cylindrical lock features dual backset compatibility for 2-3/8" or 2-3/4" installations and accommodates door thicknesses from 1-3/8" to 1-3/4". The Alexandria glass knob design offers timeless elegance while the convertible passage/privacy function adapts to various room requirements with a simple pushbutton operation.

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.
  • Dual-Function Operation: Default passage function converts to privacy with interior pushbutton, featuring emergency unlock capability from exterior side.
  • Grade 2 Certification: ANSI/BHMA A156.2-2017 Grade 2 and ANSI/BHMA A156.39-2015 Residential Grade AAA certified for reliable performance.
  • Professional Installation: Easy 3-step installation process requires only a screwdriver, with universal latch and full lip radius corner strike included.
  • Quality Construction: Stainless steel substrate with 1" x 2-1/4" latch featuring 1/4" radius corner faceplate and 1/2" throw for secure operation.
  • Fire Door Compatible: Available UL Listed for 90-minute fire door applications when required by code.
  • Manufacturer Warranty: 10-year warranty coverage for added confidence and long-term 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

  1. Review manufacturer specifications and verify door preparation requirements including door thickness between 1-3/8" and 1-3/4" and backset requirements for either 2-3/8" or 2-3/4" installation.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for the cylindrical lock installation.
  3. Prepare door by drilling required holes per manufacturer specifications, ensuring proper alignment for the universal latch and strike components.
  4. Install the spring latch assembly and secure the lock mechanism to door per manufacturer torque specifications using the 3-step installation process.
  5. Adjust operational components for proper alignment and smooth knob operation, testing both passage and privacy functions throughout the full range of motion.
  6. Test device operation to verify proper function of the convertible passage/privacy mechanism and emergency unlock feature. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Residential Interior Doors
  • Bedroom and Bathroom Privacy Applications
  • Hall and Closet Passage Functions
  • Multi-Family Housing Units
  • Apartment and Condominium Complexes
  • Single-Family Home Interior Applications
  • Residential Renovation Projects

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 manufacturer warranty provides long-term confidence while the dual-function design offers versatility for various room requirements. Engineered for easy installation and dependable daily operation with classic Alexandria glass knob styling.

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 Alexandria Knob
Handle Type:
Lever and Knob
Lever/Knob Design:
Alexandria Knob x Alexandria Knob
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

Schlage Residential FC21ALXCAM622ALXCEN – Frequently Asked Questions

1) Will the Schlage FC21 Alexandria glass knob lock fit a 1-3/8 inch interior door?
Yes. The FC21 Alexandria knob set covers doors from 1-3/8 to 1-3/4 inches, so it handles both older 1-3/8 inch interior doors and standard 1-3/4 inch slabs without any extra kit. The latch is a dual backset type that adjusts to either a 2-3/8 or 2-3/4 inch bore centerline, so you do not have to measure the backset before you buy.
2) Is the Schlage FC21 a passage lock or a privacy lock for a bedroom or bathroom?
It is both, and you choose at install. The FC21 ships as a passage set (knob always turns, no locking). To make it a bathroom or bedroom privacy set, you insert the privacy pushbutton into the interior side of the lock. From the hallway side there is a small emergency unlock so you can get the door open if someone is locked in. That means one part number covers hall and closet doors and bed and bath doors on the same job.
3) Do I have to order a left hand or right hand Schlage FC21 knob?
No handing to specify. The FC21 is non-handed, so the same set works on a left or right hand door swing. For a property manager buying a carton for a turn crew, that removes the most common ordering mistake on knob sets.
4) Will the Schlage FC21 drop into my existing door prep and strike, or do I need to re-mortise the jamb?
The FC21 comes with a 10-027 full lip radius strike measuring 2-1/4 by 1-5/8 inches, which is the common residential radius corner strike, so on most existing bored doors it drops into the jamb cutout already there. The latch is the 16-600 spring latch supplied in both round faceplate and drive-in versions, so if your door was prepped with no faceplate mortise you use the drive-in and skip chiseling. Latch throw is 1/2 inch into the strike.
5) Does the Schlage FC21 Alexandria knob take a key, and does it work with my Schlage C keyway master system?
The FC21 Alexandria set is non-keyed. It is a passage and privacy knob only, so there is no cylinder in it and nothing to key into a C keyway system. If you need a keyed opening on the same run of doors, you want an entry or keyed function set instead, such as the Arrow HK11 turn-pushbutton entrance knob or the Cal-Royal AG00 entrance lever, both of which are built on the Schlage C keyway.
6) Will the Schlage FC21 Alexandria work on a 2 inch thick door, and if not what passage lock will?
The FC21 Alexandria is built for doors 1-3/8 inch to 1-3/4 inch. For a thicker leaf, the Falcon K101 is a Grade 1 heavy duty passage cylindrical lock covering 1-3/8 inch to 2-1/4 inch and is fire rated, the Hager 2510 Grade 2 passage lever covers 1-3/8 inch to 2 inch, and the Corbin Russwin CL3110 Grade 1 vandal resistant passage lever covers 1-3/4 inch to 2 inch with a fire rating.
7) What is the closest passage lever equivalent to the Schlage FC21 Alexandria for someone who wants a lever instead of a glass knob?
The Schlage FC21 Alexandria is a Grade 2 non-keyed cylindrical lock with an Alexandria knob on both sides and a passage function that converts to privacy with an interior pushbutton. If a lever is wanted at the same Grade 2 level, the Kwikset 200BRNL RDT Breton passage lever set covers doors 1-3/8 inch to 1-3/4 inch but is Grade 3, while the Hager 2510 is a Grade 2 passage cylindrical lever lock with the Withnell design covering 1-3/8 inch to 2 inch doors. The Hager 2510 matches the FC21 on grade and door range; the Kwikset Breton matches the door range with a residential-style lever.
8) The FC21 passage knob is going on a bathroom door that needs to lock every time - what should be ordered instead?
The FC21 Alexandria ships as passage by default and only becomes privacy once the pushbutton is inserted on the interior side. For a door that is dedicated privacy from the start, the Kwikset 300BRNL RDT Breton is a privacy lever set for 1-3/8 inch to 1-3/4 inch doors, the same door range the FC21 covers. The Arrow MK02-TA is a privacy cylindrical lock with a Tudor knob if a knob shape is preferred, and it is fire rated. The Baldwin Estate 5103 with 5048 rose is also built as a privacy lever.
9) The door needs a key, not the FC21 passage knob - what keyed lock covers the same 1-3/8 to 1-3/4 inch door?
The FC21 Alexandria is non-keyed and fits 1-3/8 inch to 1-3/4 inch doors. Keyed options over that same door range include the Cal-Royal AG00 entrance lever, Grade 2 with a 6-pin Schlage C keyway keyed different and a 2-3/8 inch backset; the Cal-Royal AG05 Grade 2 storeroom lever with a deadlocking latchbolt; the Dexter C1000 Grade 1 entry/office clutching lever; and the Arrow HK11-BB turn-pushbutton entrance lock with a ball knob and conventional cylinder. Which one depends on whether the room needs entry, storeroom, or classroom behavior.
10) Does the Schlage FC21 Alexandria meet an ADA lever requirement for accessible units?
The FC21 Alexandria uses an Alexandria glass knob on both sides, so it is a knob set, not a lever. Where a lever operable trim is required, Grade 2 lever passage options include the Hager 2510 Withnell passage lever for 1-3/8 inch to 2 inch doors, the Accentra 4601LN passage lever with Augusta trim, and the Design Hardware J75 passage lever lockset for 1-3/4 inch doors. All three latch the same way the FC21 does with lever trim instead of a knob.
11) Is a Grade 2 knob set strong enough for apartment turns and multi-family interior doors?
Grade 2 is the middle ANSI/BHMA tier, above the Grade 3 builder sets and below the Grade 1 commercial ones, and it is what most multi-family interior work is specified at. The FC21 carries ANSI/BHMA A156.2-2017 Grade 2 plus A156.39-2015 Residential Grade AAA, and the lock body uses a stainless steel substrate. For an interior bedroom, bath, hall, or closet door in an apartment it is the right tier. If you are putting it on a high traffic commercial corridor, step up to a Grade 1 passage set like the Falcon K101 or the Corbin Russwin CL3110.
12) Can I use the Schlage FC21 on a 90 minute fire rated apartment door?
There is a UL Listed version of the FC21 for 90 minute fire door applications, so it can go on a rated opening where code calls for it. Note that the fire rated version is a specific configuration, not every FC21 build, so specify the UL Listed option when the opening is rated.
13) Can I order the Schlage FC21 with a different rose on each side of the door?
Yes, the two sides are specified separately. Each side takes Camelot, Century, Collins, or Kinsler rose, and you pick side one and side two independently, so you can run a Camelot rose facing the hall and a Century rose facing the bedroom if the two rooms have different trim. Finish is chosen once and applies to the whole set, in either 619 satin nickel or 622 matte black. All told that is 32 orderable combinations.
14) What tools and parts do I need to install a Schlage FC21, and is anything else required?
A screwdriver and the drilled door prep. The set is a three step install and everything that touches the jamb and edge comes in the box: the 16-600 universal spring latch with both round faceplate and drive-in options, and the 10-027 full lip radius corner strike. Nothing else has to be ordered to finish a standard bored interior door, and there is no wiring involved since the FC21 is fully mechanical.
15) Is the Schlage FC21 a Grade 3 builder knob like a Kwikset, or is it a step up?
It is a step up. The FC21 is ANSI/BHMA Grade 2, where residential builder sets such as the Kwikset 200BRNL Breton passage and the 300BRNL Breton privacy are Grade 3. All three cover the same 1-3/8 to 1-3/4 inch door range, so the difference is cycle and strength tier, not fit. The Kwikset Breton is also a lever rather than a knob, and it splits passage and privacy into two separate part numbers where the FC21 converts between the two.
16) Is a dummy lever a substitute for the Schlage FC21 Alexandria passage lock?
No. The FC21 Alexandria is a cylindrical lock with a working latch, passage by default and convertible to privacy. A dummy has no latch and no function - it is surface trim for a fixed or inactive leaf. The Baldwin Estate 5103 half dummy comes in left hand and right hand versions, the BEST 7KC single dummy trim is Grade 2 non-keyed, and the Emtek Arts and Crafts dummy pair covers a double door with no latching. Use a dummy only where the door does not need to latch.
17) For apartment interior doors that see heavy turnover, is there a heavier duty passage lock than the Schlage FC21?
The FC21 Alexandria is a Grade 2 residential cylindrical lock. Stepping up in grade, the Falcon K101 is a Grade 1 heavy duty non-handed passage cylindrical lock rated for 1-3/8 inch to 2-1/4 inch doors with a fire rating, the Falcon T101 is a Grade 1 heavy duty passage lever with pressure release technology, and the Design Hardware X75 is a Grade 1 passage lever lockset for 1-3/4 inch doors. All three are levers rather than knobs, so the trim look changes.
18) What is a simpler passage-only alternative to the Schlage FC21 if the privacy pushbutton is not needed?
The FC21 Alexandria carries a convertible function - passage until the interior pushbutton is added. Where doors only ever need to latch, a straight passage set is enough: the Falcon B101 is a Grade 2 medium duty non-handed passage lever, the Accentra 5301LN Augusta is a Grade 2 passage lever in the 5300 Series, the Arrow GL01 is a Grade 2 Sierra lever passage lock for 1-3/4 inch to 2 inch doors, and the Bravura Atlanta round trim passage leverset is Grade 2. The FC21 is non-handed, and the Falcon B101 is non-handed as well.
19) Can a keypad or electronic lever replace the Schlage FC21 Alexandria on an interior door?
Only if the door is meant to be code controlled. The FC21 Alexandria is a non-electronic mechanical cylindrical lock with a knob on both sides. The Lockey 1150 is a heavy duty mechanical keypad lever set with double combination and a passage function, fitting doors 1-1/8 inch to 2 inch. The Delaney LP250 is an electronic keypad leverlock at Grade 2, and the Emtek Classic keypad leverset is another code-entry option. These change how the door is operated, not just the trim.
20) If the FC21 Alexandria goes on hall and closet doors, what handles the entry door on the same unit for a matching build?
The FC21 Alexandria covers the hall and closet openings as a Grade 2 non-keyed passage lock. For the keyed entry on the same unit, the Hager 2525 is a Grade 2 commercial cylindrical entry lock with a lever for 1-3/8 inch to 2 inch doors, the Falcon B511CP6D is a Grade 2 medium duty entry/office cylindrical lever, and the Callan Bennett is a Grade 3 entrance leverset with a deadbolt combo. Pairing entry and passage from the same grade keeps the unit consistent.
21) Are Grade 3 passage sets equivalent to the Schlage FC21 Alexandria for a rental unit?
They are not the same grade. The FC21 Alexandria is Grade 2. The Kwikset 200BRNL Breton passage lever and the Callan Asheville passage leverset are both Grade 3, with the Kwikset covering 1-3/8 inch to 1-3/4 inch doors, the same range as the FC21. Within Grade 2, the Bravura Miramar round trim passage leverset in US4 satin brass and the Bravura Tampa square trim passage leverset match the FC21 grade with different trim shapes.
How fast can I get the Schlage Residential FC21ALXCAM622ALXCEN delivered?
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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 FC21ALXCAM622ALXCEN come with a warranty?
Absolutely. The Schlage Residential FC21ALXCAM622ALXCEN 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 FC21ALXCAM622ALXCEN?
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