Falcon K581 Grade 1 Storeroom ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$378.00
$171.20
Falcon Falcon K581 - Storeroom Lock - Grade 1 Push-Turnbutton Keyed Cylindrical Lock FAL-K581-KEYED

Falcon K581 Grade 1 Storeroom Cylindrical Lock with Push-Turnbutton Function

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Model: K581CP6D D 626
$378.00
$171.20
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$378.00
$171.20
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Falcon K581 Grade 1 Storeroom Cylindrical Lock with Push-Turnbutton Function

Professional-Grade Cylindrical Lock for High-Traffic Commercial Applications

The Falcon K581 delivers Grade 1 performance for demanding commercial storeroom applications with certified ANSI/BHMA Grade 1 construction and UL10C 3-hour fire rating. This heavy-duty cylindrical 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 K581 provides reliable security with conventional cylinders or interchangeable core compatibility.

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 Construction: Four screws through-bolted design with pressure-cast solid levers and heavy-wrought brass or bronze roses for exceptional durability.
  • Grade 1 Certification: ANSI/BHMA A156.2 Series 4000 Grade 1 certified for heavy-duty commercial applications with proven reliability.
  • Fire Rating Compliance: UL10C 3-hour A label certification ensures code compliance for fire-rated door applications.
  • Clutching Lever Design: Allows lever movement when locked without unlatching the door, preventing chassis damage from forced operation.
  • Keying Flexibility: Compatible with conventional cylinders and small format interchangeable cores (SFIC) from Falcon and other manufacturers.
  • Non-Handed Installation: Field-reversible design eliminates handing requirements for simplified installation and inventory management.
  • Manufacturer Warranty: 10-year warranty coverage for added confidence and long-term protection.

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: Storeroom
  • Lock Type: Cylindrical
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Storeroom
  • Product Group: Mechanical Locks
  • Product Model: K581
  • 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", standard 2-1/8" bore, and 2-3/4" backset compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for proper alignment.
  3. Prepare door by drilling required 2-1/8" bore hole and 1" latch bore according to manufacturer specifications.
  4. Install latch assembly and secure with provided through-bolts using manufacturer torque specifications for optimal strength.
  5. Mount exterior and interior lever assemblies ensuring proper alignment and secure attachment of all four through-bolts.
  6. Test lock operation including key function, lever operation, and storeroom function to verify proper installation and smooth operation throughout full range of motion. 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 K581 cylindrical locks deliver professional-grade reliability with heavy-duty construction featuring four through-bolted screws and pressure-cast solid levers rated for Grade 1 commercial performance. UL10C 3-hour fire rating and ANSI/BHMA certification ensure code compliance while the 10-year warranty provides long-term protection. Engineered for demanding commercial applications where dependable storeroom security and durability are 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:
Storeroom
Product Attribute:
Cylindrical Locks
Product Model:
K581
Product Function:
Storeroom
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 K581CP6D D 626 – Frequently Asked Questions

1) Will the Falcon K581 storeroom lock fit a 2 inch thick door?
Yes. The K581 cylindrical lock covers a door thickness range of 1-3/8 inches through 2-1/4 inches, so a 2 inch door is inside the range with no special kit. Standard prep applies: 2-1/8 inch cross bore, 1 inch latch bore, 2-3/4 inch backset. Four through-bolts pull the two lever assemblies together, which is what lets one chassis span that whole thickness spread.
2) What does the storeroom function on the Falcon K581 actually do day to day?
The outside lever on the K581 is always locked. Key retracts the latch for entry, and the inside lever always retracts it for free egress, so nobody gets trapped in the room. That is ANSI/BHMA F109 behavior. The outside lever also clutches: turn it while locked and it spins free without pulling the latch, so a resident or a delivery driver yanking on a locked storeroom door doesn't twist the chassis apart. It's the standard choice for mechanical rooms, janitor closets, electrical rooms, and IT rooms where the door must stay secure but never blocks egress.
3) Can I put the Falcon K581 on a 3-hour fire rated stairwell or corridor door?
Yes. The K581 is UL Listed for a 3 Hour A label opening, which covers stair enclosure and corridor doors carrying up to a 3-hour rating. Two install details matter on a rated opening: use the deadlatch (the K581's standard latch is a deadlatching 1/2 inch throw unit) and keep the strike a labeled one with no cutout larger than the prep allows. The storeroom function is code-compatible with egress because the inside lever always releases the latch, no key, no special knowledge.
4) We standardize on small format interchangeable cores. Which Falcon K581 do I order, and does it take our existing cores?
Two SFIC-prepped choices. Order H if you want the lock to arrive with a refundable construction core so the GC can run the job on construction keys and you swap your permanent cores in at turnover. Order B (less SFIC) if you are pinning and supplying every core yourself. The K581 chassis accepts small format interchangeable cores from Falcon and other manufacturers, so an existing SFIC program carries over. If you'd rather stay conventional, P or P6 give you a fixed 6-pin cylinder instead.
5) I need to lock a classroom, not a storeroom. Does the Falcon K581 work for that?
No, and the difference matters for a school spec. The K581 is a storeroom lock: the outside lever is permanently locked and there is no way to leave it in an unlocked state for passage between periods. A classroom function lets a key unlock the outside lever and leave it unlocked. ZenSupply carries the Cal-Royal BA03 Barrington classroom lock, Grade 2 ANSI F84, for 1-3/8 to 1-3/4 inch doors. If your district has moved to classroom security function (lock the outside lever from inside the room), that is a different code again and the K581 does not provide it.
6) What is the closest storeroom cylindrical lock to the Falcon K581?
The Cal-Royal BA05 is also a storeroom-function cylindrical lock, from the Barrington BA series, with a Grade 2 ANSI F86 deadlocking latch. The Falcon K581 is ANSI/BHMA Grade 1, F109-1 storeroom function, and fits doors 1-3/8 inch to 2-1/4 inch thick; the BA05 covers 1-3/8 inch to 1-3/4 inch. On a thicker door leaf, or where the spec on the drawing calls out Grade 1, the K581 is the one that matches.
7) I need a Grade 1 cylindrical lock but the door has to stay unlocked during business hours - what do I use instead of the K581?
The K581 is a storeroom lock: the outside lever stays locked and the key retracts the latch, so it is not meant to be left free for passage. For an opening that needs to be locked and unlocked by the occupant, the TownSteel CDC-109 is a Grade 1, heavy duty clutched cylindrical lockset in entry/office function, and the CEC-109 is the Grade 1 clutched extra heavy duty version of the same function. Entry/office allows the outside lever to be held in a retracted, unlocked state; storeroom does not.
8) Which cylindrical lock works on a 2 inch thick door?
The Falcon K581 covers door thickness from 1-3/8 inch to 2-1/4 inch with a 2-3/4 inch backset, so a 2 inch leaf is inside its standard range. The comparable Cal-Royal Barrington locks - BA00, BA03, BA04 and BA05 - are listed for 1-3/8 inch to 1-3/4 inch, and the TownSteel CRX-A-41 for 1-3/4 inch. Measure the leaf before you order, because thickness is the spec that rules most of the alternatives out on a thick or built-up door.
9) Do I need to specify left or right hand for the Falcon K581?
No handing to call out. The K581 is non-handed and field-reversible, so one part number covers left and right hand doors, inswing or outswing. For a property manager or MRO stockroom that means a single SKU sits on the shelf for every storeroom in the building, and a tech in the field never pulls the wrong hand off the truck.
10) Is a Grade 1 cylindrical lock like the Falcon K581 overkill for a small storeroom, or should I step down to Grade 2?
Grade 1 is the heavy duty tier, the one written into most institutional and commercial specs, and the K581 is certified to ANSI/BHMA A156.2 Series 4000 Grade 1. Where it earns the money is traffic and abuse: high-cycle doors, public corridors, doors people pull on hard. On a low-traffic closet in a small building, a Grade 2 storeroom lock does the job, and ZenSupply carries the Cal-Royal BA05 Barrington storeroom lock as a Grade 2 F86 option with a deadlocking latch, sized for 1-3/8 to 1-3/4 inch doors. Note the narrower thickness range on that one, it will not cover a 2 inch door the way the K581 does.
11) What is a Grade 1 alternative to the Falcon K581 if I need entry/office function instead of storeroom?
Storeroom is the wrong function if you want staff to be able to leave the door unlocked during business hours, since the K581's outside lever stays locked at all times. For an entrance/office lock at the same Grade 1 heavy duty tier, ZenSupply carries TownSteel's CDC-109 (clutched), CEC/CECI-109 (clutched, extra heavy duty) and CE/CEI-109 (non-clutched, extra heavy duty), all entry/office function. Cal-Royal's BA00 Barrington entrance lock is another entry-function option, with turn/push button locking for 1-3/8 to 1-3/4 inch doors.
12) Can the Falcon K581 be tied into an access control system or unlocked remotely?
No. The K581 is a fully mechanical cylindrical lock, key and lever only, with no electrified option on the chassis. If the opening needs remote release or credential access, that is a different product: ZenSupply carries the BEST 9KW Series electromechanical cylindrical lock with remote control operation, also heavy duty. Keep the K581 for the openings that stay mechanical and spend the electrified budget on the doors that actually need it.
13) Is a classroom function lock a substitute for the Falcon K581?
No. The Cal-Royal BA03 is a classroom-function cylindrical lock, Grade 2 ANSI F84, where a key on the outside locks and unlocks the outside lever. The Falcon K581 is storeroom function, F109-1, where the outside lever is always locked and the key only lets you through. They bore the same kind of hole but they behave differently once the door is hung, so a classroom lock on a storeroom opening leaves the room lockable-open by anyone with a key.
14) What Grade 1 cylindrical lock should I use on a behavioral health door instead of the K581?
For ligature-resistant openings, the TownSteel CRX-A-41 is a Grade 1 heavy duty ligature resistant arch trim cylindrical lockset in stainless steel, for 1-3/4 inch doors. It is a single dummy, so it neither latches nor keys - it is trim only. The Falcon K581 is a keyed storeroom lock with a deadlocking latch and cylinder, so on a patient room you would typically pair the CRX-A trim style on the pull side and keep a keyed storeroom function where the door actually has to secure.
15) Does the Falcon K581 need power or wiring like an electromechanical cylindrical lock?
No. The Falcon K581 is a mechanical, non-electronic cylindrical lock - key and lever only, no power at the door. The BEST 9KW series is a heavy duty electromechanical cylindrical lock with remote control operation, which requires an electrical path to the opening and a system to release it from. If the drawing calls for remote release, the K581 will not do it; if it calls for a keyed storeroom lock on an existing mechanical prep, the 9KW brings infrastructure you do not need.
16) What is the difference between a clutched and non-clutched Grade 1 cylindrical lockset, and which is the K581?
The Falcon K581 uses a clutching lever, so the lever moves when the lock is engaged without retracting the latch, which keeps force off the chassis. Among comparable Grade 1 locksets the TownSteel CEC-109 is the clutched extra heavy duty entry/office lockset and the CE-109 is the non-clutched extra heavy duty version of the same function. On a door that gets pulled on hard - a school corridor, a loading area - clutched trim is the detail worth confirming before you order.
17) Can I use an entrance lock with a turn button in place of the Falcon K581?
They are not the same function even though both involve a button. The Cal-Royal BA00 is an entrance cylindrical lock with turn/push button locking for doors 1-3/8 inch to 1-3/4 inch, where the occupant sets the lock from inside. The Falcon K581 storeroom lock has a push-turnbutton that holds the outside lever locked, and the key is the only way in from the outside - it is not intended to be left unlocked. Where a tenant or occupant controls the lock, the entrance function is the right call; where the room must stay secure regardless, the K581 is.
18) What lever styles and finishes does the Falcon K581 come in?
Three lever designs, Avalon (A), Dane (D) and Quantum (Q), each in two finishes: 626 satin chrome and 613 oil-rubbed satin bronze. Every lever and finish pairing is available across all four cylinder prep options. 626 is the usual match for schools, offices and healthcare where the rest of the hardware is satin chrome; 613 is the darker bronze for hospitality and residential-feel corridors. Underneath, the parts are brass or steel, zinc plated and dichromated against rust, with stainless springs.
19) I need a lock between two adjoining rooms, not a storeroom lock - what takes the place of the K581?
That is a communicating function, and the Cal-Royal BA04 is a communicating cylindrical lock from the Barrington BA series, ANSI F80, Grade 2, for doors 1-3/8 inch to 1-3/4 inch. The Falcon K581 is a single-cylinder storeroom lock, so it secures one side of an opening rather than serving a pair of connected rooms.
How fast can I get the Falcon K581CP6D 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 K581CP6D D 626 come with a warranty?
Absolutely. The Falcon K581CP6D 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 K581CP6D 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 K581CP6D D 626 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.
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