Falcon K571 Grade 1 Corridor F...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$391.00
$232.95
Falcon Falcon K571 - Corridor lock - Grade 1 Push-Turnbutton Keyed Cylindrical Lock FAL-K571-KEYED

Falcon K571 Grade 1 Corridor Function Cylindrical Lock with Push-Turnbutton Operation

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Model: K571CP6D D 613
$391.00
$232.95
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$391.00
$232.95
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Falcon K571 Grade 1 Corridor Function Cylindrical Lock with Push-Turnbutton Operation

Professional Grade 1 Cylindrical Lock for High-Traffic Commercial Applications

The Falcon K571 delivers certified ANSI/BHMA Grade 1 performance in a corridor function cylindrical lock designed for demanding commercial environments. This heavy-duty lock accommodates door thickness from 1-3/8" to 2-1/4" with a standard 2-3/4" backset and features non-handed operation for versatile installation. Built with pressure-cast solid levers and heavy-wrought brass or bronze roses, the K571 is UL10C 3 hour A label fire rated and backed by a 10-year warranty for reliable long-term performance.

Professional Features & Benefits

  • Door Compatibility: Accommodates door thickness from 1-3/8" to 2-1/4" with 2-3/4" backset for standard commercial door preparations.
  • Heavy-Duty Grade 1 Construction: Certified ANSI/BHMA A156.2 Series 4000 Grade 1 performance for high-traffic and high-abuse commercial applications.
  • Reinforced Security Design: Four screws through-bolted construction provides added strength and clutching lever design prevents damage when locked lever is operated.
  • Fire-Rated Performance: UL10C 3 hour A label certification ensures compliance with fire safety requirements for commercial buildings.
  • Universal Keying Compatibility: Conventional cylinders or interchangeable core (SFIC) keying compatible with Falcon and other manufacturer SFIC products including Schlage C keyway.
  • Non-Handed Installation: Non-handed levers with security caps simplify field installation and prevent undesired lever removal and sag during continual use.
  • Professional Construction: Pressure-cast solid levers with no inserts, heavy-wrought brass or bronze roses, and stainless steel springs for durability and corrosion resistance.
  • Manufacturer Warranty: 10-year warranty provides added confidence and protection for commercial installations.

Technical Specifications

  • ANSI/BHMA: F90-1
  • Backset (Distance): 2-3/4"
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Door Thickness Range: 1-3/8" to 2-1/4"
  • Duty Level: Heavy Duty
  • Electronic: No
  • Fire Rating: Yes
  • Grade: Grade 1
  • Keyed: Yes
  • Keyed Function: Single Cylinder
  • Lock Function: Corridor
  • Lock Type: Cylindrical
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Corridor/Dormitory
  • Product Group: Mechanical Locks
  • Product Model: K571
  • Product Subgroup: Bored Locksets
  • Product Substrate: Brass or Steel, Zinc plated and dichromated for rust resistance. Springs are Stainless Steel.
  • Product Type: Leversets
  • Series: K Series
  • Standard Cylinder: P - 6-Pin, keyed 5-pin, Falcon G keyway, Keyed different (KD)
  • Standard Latch: 1-1/8" x 2-1/4", Square corner faceplate, 1" housing diameter, 1/2" Throw, 2-3/4" backset
  • Standard Strike: 1-1/4" x 4-7/8", ANSI, Square curved lip corner, no box
  • Subcategory: Cylindrical Locks
  • UL Listing Type: UL Listed (3 Hour A Label)

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness from 1-3/8" to 2-1/4", 2-3/4" backset, and standard cylindrical lock bore dimensions.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper alignment.
  3. Prepare door by drilling required 2-1/8" cross bore and 1" edge bore holes according to ANSI A115 standards and manufacturer specifications.
  4. Install latch assembly with 1-1/8" x 2-1/4" faceplate and secure strike plate to frame with provided fasteners per manufacturer torque specifications.
  5. Mount lock chassis with four through-bolted screws ensuring proper alignment and secure attachment to door structure.
  6. Test corridor function operation including key override, push-turnbutton locking, and lever operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Falcon Quality?

Falcon K571 cylindrical locks deliver professional-grade reliability with heavy-duty Grade 1 construction and UL10C 3 hour fire rating for demanding commercial applications. The through-bolted design with clutching lever protection and stainless steel springs ensures dependable performance under high-traffic conditions. Backed by a 10-year manufacturer warranty and certified to ANSI/BHMA standards, this lock provides the durability and security required for critical commercial door hardware installations.

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
K Series
Grade:
Grade 1
Duty Level:
Heavy Duty
Keyed Function:
Single Cylinder
Standard Cylinder:
P - 6-Pin, keyed 5-pin, Falcon G keyway, Keyed different (KD)
Standard Latch:
1-1/8" x 2-1/4", Square corner faceplate, 1" housing diameter, 1/2" Throw, 2-3/4" backset
Standard Strike:
1-1/4" x 4-7/8", ANSI, Square curved lip corner, no box
ANSI/BHMA:
F90-1
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Electronic:
No
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
UL Listing Type:
UL Listed (3 Hour A Label)
Lock Function:
Corridor/Dormitory
Product Attribute:
Cylindrical Locks
Product Model:
K571
Product Function:
Corridor/Dormitory
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/8" to 2-1/4"
Fire Rating:
Yes
Product Category:
Mechanical Locks
Product Substrate:
Brass or Steel, Zinc plated and dichromated for rust resistance. Springs are Stainless Steel.
Backset (Distance):
2-3/4"
Department:
Door Hardware

Falcon K571CP6D D 613 – Frequently Asked Questions

1) How does the corridor function on the Falcon K571 actually work day to day?
The K571 is a corridor/dormitory function lock. The inside lever is always free for egress. Pushing the turnbutton on the inside locks the outside lever; the outside key retracts the latch and also releases the button, so the lock returns to unlocked until someone pushes the button again. That is the behavior dorm rooms, patient rooms and office suites want: staff or residents lock from inside, and a key opens it from the corridor without leaving it latched shut afterward.
2) Will the Falcon K571 fit a 1-3/8 inch wood door, or is it only for 1-3/4 inch commercial doors?
Both work. The K571 covers 1-3/8 inch through 2-1/4 inch door thickness out of the box, so an older 1-3/8 inch interior door and a standard 1-3/4 inch commercial door take the same lock, as do thicker 2 inch and 2-1/4 inch leaves. Standard backset is 2-3/4 inches, and the door needs the usual cylindrical prep: 2-1/8 inch cross bore with a 1 inch edge bore.
3) Can the Falcon K571 go on a fire rated door?
Yes. The K571 is UL Listed to a 3 hour A label under UL10C, which covers it for fire door assemblies up to that rating. It uses a deadlatch, which is what a fire rated opening needs at the latch.
4) Which cylinder option do I pick if my building is keyed on Schlage C or on small format interchangeable cores?
Six cylinder choices. P6 gives you a conventional 6-pin cylinder cut for the Schlage C keyway, which is the one to take if the rest of the building is already on C. P is the standard 6-pin housing keyed 5-pin in the Falcon G keyway, keyed different. G6 is a Falcon 6-pin SFIC with slide capping. H is an SFIC lock supplied with a refundable construction core, for job sites where you swap in permanent cores at turnover. B ships less SFIC and L ships less conventional cylinder, both for locksmiths supplying their own cores from an existing system.
5) Will the Falcon K571 drop into my existing ANSI strike prep in the frame?
The standard strike is the 30-148 ANSI 1-1/4 inch x 4-7/8 inch with a 1-3/8 inch lip, which matches a frame already prepped to ANSI A115. If your frames have the older smaller preps, three other strikes are orderable: 30-149 T-strike at 1-1/8 x 2-3/4, and full lip strikes 30-150 radius corner or 30-151 square corner at 1-5/8 x 2-1/4 with a 1 inch lip. Latch throw is 1/2 inch, so the strike needs to sit flush with the stop in the normal way.
6) What is a Grade 1 alternative to the Falcon K571 if the door needs a classroom lock instead of corridor function?
The Dexter C1000 Series classroom cylindrical lever lock is a Grade 1 keyed cylindrical lever with a clutching lever, listed for 1-3/8 inch to 1-3/4 inch doors. The Falcon K571 is a corridor function lock, keyed with push-turnbutton locking, Grade 1, and covers 1-3/8 inch to 2-1/4 inch door thickness. Choose the Dexter C1000 classroom when the opening must be locked and unlocked from the outside by key only with no inside button; choose the K571 when occupants need to secure the door from the inside.
7) What should I use instead of the Falcon K571 on a door that only needs to latch and never lock?
For a non-locking opening, the Dexter C1000 Series passage cylindrical lever lock is a Grade 1 non-keyed clutching lever for 1-3/8 inch to 1-3/4 inch doors, and the Corbin Russwin CL3110 is a Grade 1 fire rated passage/closet vandal resistant cylindrical lever for 1-3/4 inch to 2 inch doors. The Falcon K571 is a keyed single-cylinder lock with push-turnbutton corridor operation, so it carries a cylinder and keying you would not need on a passage door.
8) I need a storeroom function lock rather than corridor - what is the closest option to the Falcon K571?
The Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors, and the Hager 2580 is a Grade 2 storeroom cylindrical lock with the Withnell lever for 1-3/8 inch to 2 inch doors. Storeroom function keeps the outside lever locked at all times with key access only; the Falcon K571 corridor function instead locks the outside lever by push-turnbutton from the inside with key override.
9) My other doors are on a 2-3/8 inch backset - is there a lever lock that fits, or can the Falcon K571 be adapted?
The Falcon K571 ships standard with a 2-3/4 inch backset latch, and 2-3/8 inch backset deadlatches are offered as an option in square corner (30-386) and radius corner (30-388), so the K571 itself covers that prep. Among peers, the Cal-Royal AG00 entrance lever is a 2-3/8 inch backset lock for 1-3/8 inch to 1-3/4 inch doors if you want a Grade 2 entrance function on that prep instead.
10) Does a Schlage C keyway option exist on any comparable lever lock if I am standardizing keying with the Falcon K571?
Yes. The Falcon K571 can be ordered with a P6 conventional 6-pin cylinder in the Schlage C keyway. Among peers, the Cal-Royal AG03 classroom lever and the Arrow MK33-BD-CS asylum lock are also offered with a 6-pin Schlage C keyway cylinder, so a facility keyed on Schlage C can stay on one key system across those functions.
11) Do I have to worry about handing when I order the Falcon K571?
No. The K571 is non-handed, so one lock serves left and right hand openings and you can stock a single part number across a building. The levers install either way and carry security caps to keep them from being pulled off or sagging in heavy use.
12) Is the Falcon K571 tough enough for a high traffic corridor, or should I be looking at a mortise lock?
It is certified ANSI/BHMA A156.2 Series 4000 Grade 1, function F90, heavy duty. Construction is pressure-cast solid levers with no inserts, heavy-wrought brass or bronze roses, stainless steel springs, and four through-bolts holding the chassis to the door. The levers clutch, so when the outside lever is locked and someone forces it, the lever spins free instead of breaking the chassis. That is the bored lock built for abuse; you go to a mortise body when you need a deadbolt combined with a latch or auxiliary functions a bored chassis cannot do.
13) What is the difference between the Falcon K571 corridor lock and a classroom or storeroom function lock?
Corridor is locked and unlocked from the inside by a turnbutton, and the key both opens the door and releases the button. A classroom function has no inside control at all: the key on the outside is the only thing that locks or unlocks the outside lever, which is why schools use it. A storeroom lever is always locked outside and only the key retracts the latch. If you need classroom, the Cal-Royal AG03 is a Grade 2 classroom lever on a 2-3/4 inch backset with a 6-pin Schlage C keyway; for storeroom, the Cal-Royal AG05 is a Grade 2 storeroom lever with a deadlocking latchbolt.
14) What other Grade 1 cylindrical lever locks could I use instead of the Falcon K571?
On the Grade 1 bored lever side, the Dexter C1000 Series covers classroom, classroom security, asylum and passage functions and fits 1-3/8 to 2 inch doors on the asylum version. Corbin Russwin's CL3100 Series is a Grade 1 vandal resistant cylindrical lever, fire rated, for 1-3/4 to 2 inch doors, though the CL3110 listed is passage function rather than keyed. If the opening needs to be released electrically, the Corbin Russwin CL33900 Series is a Grade 1 fail safe electrified lever at 12VAC/DC for 1-3/4 to 2 inch doors. The K571 remains the one with the widest door range at 1-3/8 to 2-1/4 inches.
15) If the opening needs card or code access rather than a key, what replaces the Falcon K571?
The Corbin Russwin CL33903 is a Grade 1 electrified fail safe cylindrical lever lock running on 12VAC/DC for 1-3/4 inch to 2 inch doors, and the Delaney LP250 is a Grade 2 electronic keypad leverlock. The Falcon K571 is a mechanical lock with no electronic operation, so any access control on that opening has to come from a separate device.
16) Can I use a dummy lever like the BEST 9K 1DT in place of the Falcon K571?
No. The BEST 9K Series 1DT is a Grade 1 non-keyed single dummy trim lever - it is fixed trim with no latch and no locking mechanism, used on inactive leaves and pull-side trim. The Falcon K571 is a keyed cylindrical lock with a 1/2 inch throw deadlatch on a 2-3/4 inch backset and push-turnbutton corridor operation, so the two are not interchangeable on a door that has to latch.
17) Will a Kwikset or Callan residential lever work on the same commercial doors as the Falcon K571?
They target a different service level. The Kwikset 200BRNL Breton passage lever is Grade 3 for 1-3/8 inch to 1-3/4 inch doors and the Callan Artino entrance leverset is Grade 3. The Falcon K571 is a Grade 1 heavy duty commercial lock, UL Listed 3 Hour A Label, with four through-bolted screws and a clutching lever, which is what commercial corridor traffic and fire-rated openings call for.
18) I want knobs instead of levers but the same kind of button-locking function as the Falcon K571 - what is close?
The Arrow HK11-BB is a turn-pushbutton entrance cylindrical lock with a ball knob and conventional cylinder for 1-3/8 inch to 1-3/4 inch doors. It gives you pushbutton locking on a knob rather than a lever. Note that lever trim is what ADA-governed commercial openings typically require; the Falcon K571 is a non-handed Grade 1 lever lock covering 1-3/8 inch to 2-1/4 inch doors.
19) What lever designs and finishes does the Falcon K571 come in?
Three lever styles, Avalon (A), Dane (D) and Quantum (Q), each in 626 satin chrome or 613 oil-rubbed satin bronze. Any of the six combinations pairs with any of the cylinder options, so you can match existing trim across a floor and still key it into whatever system the building runs.
How fast can I get the Falcon K571CP6D D 613 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 Falcon K571CP6D D 613 come with a warranty?
Absolutely. The Falcon K571CP6D D 613 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 Falcon K571CP6D D 613?
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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