Falcon K511 Grade 1 Entrance/O...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$378.00
$226.80
Falcon K511 Grade 1 Entrance/Office Cylindrical Lock with Push-Turnbutton Function

Falcon K511 Grade 1 Entrance/Office Cylindrical Lock with Push-Turnbutton Function

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Model: K511CP6D D 626
$378.00
$226.80
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$378.00
$226.80
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Falcon K511 Grade 1 Entrance/Office Cylindrical Lock with Push-Turnbutton Function

Professional-Grade Commercial Door Security Solution

The Falcon K511 Grade 1 cylindrical lock delivers certified ANSI/BHMA Grade 1 performance for entrance and office applications. This heavy-duty lock accommodates door thickness from 1-3/8" to 2-1/4" with a standard 2-3/4" backset and features conventional cylinders compatible with Falcon G keyway and Schlage C keyway systems. Built with brass or steel construction and zinc plating for rust resistance, this lock is UL10C 3-hour A label certified for fire-rated applications.

Professional Features & Benefits

  • Door Compatibility: Accommodates door thickness from 1-3/8" to 2-1/4" with 2-3/4" backset for versatile installation options.
  • Heavy-Duty Construction: Brass or steel substrate with zinc plating and dichromate coating provides exceptional rust resistance and durability for commercial applications.
  • Grade 1 Security Performance: Certified ANSI/BHMA A156.2 Series 4000 Grade 1 rating ensures reliable performance in high-traffic and high-abuse conditions.
  • Through-Bolt Security: Four screws through-bolted design provides added strength and tamper resistance for enhanced security.
  • Clutching Lever Protection: Clutching lever design allows lever movement when locked without unlatching the door, preventing chassis damage from forced entry attempts.
  • Fire Rating Compliance: UL10C 3-hour A label certification meets fire-rated door requirements for code compliance.
  • Keying Flexibility: Compatible with conventional cylinders and small format interchangeable cores (SFIC) from Falcon and other manufacturers for versatile key system integration.
  • Manufacturer Warranty: 10-year warranty provides long-term protection and confidence in product reliability.

Technical Specifications

  • ANSI/BHMA: F109-1
  • 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: Entrance/Office
  • Lock Type: Cylindrical
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Entrance/Office
  • Product Group: Mechanical Locks
  • Product Model: K511
  • Product Subgroup: Bored Locksets
  • Product Substrate: Brass or Steel, Zinc plated and dichromated for rust resistance. Springs are Stainless Steel.
  • Product Type: Knobs and Levers
  • 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 between 1-3/8" and 2-1/4", stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  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

  • 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 K511 cylindrical locks deliver professional-grade reliability with brass or steel construction and zinc plating rated for heavy-duty commercial applications. The certified ANSI/BHMA Grade 1 performance and UL10C 3-hour fire rating ensure dependable operation in demanding environments. Backed by a 10-year manufacturer warranty, this lock is engineered for high-traffic areas where consistent security performance is essential.

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:
F109-1
Product Subgroup:
Bored Locksets
Product Type:
Knobs and Levers
Keyed:
Yes
Electronic:
No
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
UL Listing Type:
UL Listed (3 Hour A Label)
Lock Function:
Entrance/Office
Product Attribute:
Cylindrical Locks
Product Model:
K511
Product Function:
Entrance/Office
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 K511CP6D D 626 – Frequently Asked Questions

1) Will the Falcon K511 latch into the strike that is already in my frame?
Depends on what is in the frame, and you get to choose the strike on the order. The K511 latch has a 1/2 inch throw, so the strike lip and box must sit within that. Four strikes are offered: the standard 30-148 ANSI strike at 1-1/4 by 4-7/8 inches with a 1-3/8 inch lip, the 30-149 T-strike at 1-1/8 by 2-3/4 inches with a 1-3/8 inch lip, and two full lip strikes at 1-5/8 by 2-1/4 inches with a 1 inch lip, 30-150 radius corner and 30-151 square corner. If the frame already carries an ANSI 4-7/8 inch cutout, take the 30-148 and nothing gets patched.
2) Does the Falcon K511 need to be ordered left or right handed?
No. The K511 is non-handed, so one part number covers both swings and a locksmith carrying it on the truck can fit whatever door is in front of them. That also means an installer can field-reverse it rather than sending a wrong-hand lock back.
3) What does the entrance/office function on the Falcon K511 actually do at the door?
Push-turnbutton locking. Push the button in the inside lever and the outside lever locks; turn it and it stays locked until turned back, which is how an office holds itself locked over a weekend. The key retracts the latch from outside, and the inside lever always retracts it for free egress. It is ANSI/BHMA F109-1, single cylinder, so there is a keyed cylinder on one side only.
4) Can the Falcon K511 go on a fire rated door?
Yes. The K511 is UL Listed to a 3 hour A label, so it is usable on rated openings up to that label. It is a latching cylindrical lock with a deadlatch, which is what a rated opening needs to stay positively latched.
5) Which cylinder option should I order on the Falcon K511 if my building is on Schlage C keys?
Take the P6 option, a conventional 6-pin cylinder cut to Schlage C keyway, and it keys into an existing Schlage C system. If the building runs Falcon G, the P option is the 6-pin, keyed 5-pin Falcon G cylinder, keyed different. Five cylinder choices exist in total: P, P6, H (small format interchangeable core, refundable construction cylinder), L (less 6-pin conventional cylinder) and B (less SFIC). The two less options ship the lock with no cylinder so a locksmith can drop in the facility's own core.
6) The classroom doors need to lock from outside by key only - can I use the Falcon K511 there?
No, that is a different function. The Falcon K511 is an entrance/office lock, locked and unlocked by a push-turnbutton on the inside. For key-only outside control on a classroom door, the Cal-Royal BA03 is a classroom cylindrical lock in the Barrington BA series with Grade 2 ANSI F84 function, and the Cal-Royal BA05 is a storeroom lock with a Grade 2 ANSI F86 deadlocking latch for doors that must stay locked at all times. All three are cylindrical locks, so the door prep is the same family of bore.
7) I want the same office lock but with remote electric control - what replaces the Falcon K511?
The BEST 9KW series is a heavy duty electromechanical cylindrical lock with remote control operation. The Falcon K511 is a mechanical lock with no electronic function, so an opening that has to be released from a desk or access control panel needs the 9KW rather than the K511. Both are cylindrical chassis, so the door bore family is the same, but the 9KW opening will also need power and wiring routed to the door.
8) What is the closest Grade 1 entrance/office cylindrical lock to the Falcon K511 if I need a clutched chassis?
The TownSteel CDC-109 is the nearest match. It is a Grade 1 heavy duty clutched cylindrical lockset in entry/office function, the same function and grade as the Falcon K511, which is an ANSI/BHMA Grade 1 entrance/office cylindrical lock with a clutching lever. Both use a clutching design, so the lever turns freely when locked instead of loading the chassis. Confirm keyway before ordering, since the K511 ships with a Falcon G keyway 6-pin cylinder as standard and is also offered with a conventional 6-pin Schlage C keyway cylinder.
9) I am doing a new building and want the trades locked out of the tenant keys until turnover. What Falcon K511 option handles that?
Order the H cylinder option. It is a small format interchangeable core supplied as a refundable construction cylinder, so the site runs on construction keys during the build and the permanent core is swapped in at turnover without pulling the lock off the door. The K511 chassis also takes small format interchangeable cores from Falcon and other manufacturers, so a facility already standardized on an SFIC system can carry that through.
10) Which lever styles and finishes does the Falcon K511 come in?
Three lever styles, Avalon (A), Dane (D) and Quantum (Q), each in 626 satin chrome or 613 satin bronze oil-rubbed. Every lever and finish pairing is available against all five cylinder options, so matching the K511 to what is already hanging on the other doors does not force a cylinder choice you did not want.
11) Is a clutched lever worth it on a school or apartment corridor door?
On abused openings, yes. The K511 uses a clutching lever: when the lock is thrown, the outside lever still moves freely instead of transmitting force into the chassis, so someone hanging on the handle or kicking down on it does not snap the internal works. That is the difference between a service call and a replaced lockset in a high-traffic corridor. It is a Grade 1, heavy duty chassis through-bolted with four screws, which also resists someone trying to twist the trim off the door.
12) How is the Falcon K511 different from the TownSteel CDC-109 entry/office lock?
Both are Grade 1 heavy duty cylindrical locks in entrance/office function with a clutched lever, so functionally they are the same job. The TownSteel CDC Series is the direct alternative if you are already standardized on TownSteel. TownSteel also lists the CEC/CECI-109, a clutched extra heavy duty Grade 1 entry/office lockset, and the CE/CEI-109, which is extra heavy duty but non-clutched. Where the K511 is the safer pick is thick doors and rated openings: it covers 1-3/8 to 2-1/4 inches and carries a UL 3 hour A label.
13) Does a non-clutched Grade 1 entry lock work the same as the Falcon K511 on an abused corridor door?
They differ in how the lever behaves when locked. The Falcon K511 uses a clutching lever, so the lever moves without unlatching the door and the force does not reach the chassis. The TownSteel CE-109 is a Grade 1 non-clutched extra heavy duty entry/office cylindrical lockset, while the TownSteel CEC-109 is the clutched version of the same extra heavy duty family. If the run of doors already uses clutched locks, the CEC-109 matches that behavior and the CE-109 does not.
14) What looks like a Falcon K511 substitute but will not lock the door?
The TownSteel CRX-A-41 is a single dummy trim - a Grade 1 heavy duty ligature resistant stainless steel arch trim cylindrical lockset for 1-3/4 inch doors, with no latch and no locking. The Falcon K511 is a keyed entrance/office cylindrical lock with a single cylinder and a push-turnbutton. Dummy trim is for pull-only leaves and inactive doors; it will not accept a key or hold a door closed.
15) Can I put a Falcon K511 on a fire rated door, and what are the Grade 1 alternatives that hold the same duty level?
The Falcon K511 is UL Listed for 3 hour A label openings and carries ANSI/BHMA F109-1 Grade 1 in heavy duty. Among comparable Grade 1 entry/office cylindrical locksets, the TownSteel CDC-109, CE-109 and CEC-109 are all listed heavy duty in the same entrance/office function. Verify the fire label requirement against the specific TownSteel model with the door schedule before substituting on a rated opening.
16) I need a pair of doors between two offices that each lock independently - is the Falcon K511 the right lock?
For a communicating opening, the Cal-Royal BA04 is the correct function: a communicating cylindrical lock in the Barrington BA series, ANSI F80 Grade 2, for doors 1-3/8 inch to 1-3/4 inch. The Falcon K511 is an entrance/office function with a single cylinder and push-turnbutton, which controls one side of one door rather than the two-sided communicating arrangement.
17) I am standardizing a building on one entrance lock - which options let me keep a single keyway across all of them?
The Falcon K511 is the one in this comparable group with published keying flexibility: it takes conventional 6-pin cylinders in the Falcon G keyway or the Schlage C keyway, and it is also offered less cylinder or with a small format interchangeable core, including a refundable construction core. That lets a facility bring the lock into an existing Falcon or Schlage C key system or into an SFIC master key system without changing the chassis. The Grade 1 entry/office alternatives - TownSteel CDC-109, CE-109 and CEC-109 - should be confirmed against your key system separately.
18) Will the Falcon K511 hold up in a coastal or damp facility like a pool building or a loading dock?
The chassis is brass or steel, zinc plated and dichromated for rust resistance, and the springs are stainless steel, which is the part that usually fails first in humid service. That is the corrosion package on the lock itself; the exposed finish is your other lever, with 626 satin chrome being the harder-wearing of the two offered against 613 satin bronze oil-rubbed.
How fast can I get the Falcon K511CP6D D 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 Falcon K511CP6D D 626 come with a warranty?
Absolutely. The Falcon K511CP6D D 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 Falcon K511CP6D D 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
Why buy the Falcon K511CP6D D 626 from ZenSupply?
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