BEST 7KC Series Classroom Func...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$461.00
$328.83
BEST BEST 7KC Series - Classroom (R) Function Single Cylinder Grade 2 Medium Duty Lever Locks BEST-7KC-R

BEST 7KC Series Classroom Function Single Cylinder Grade 2 Lever Lock with SFIC Core

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Model: 7KC37R14D-STK-626
$461.00
$328.83
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$461.00
$328.83
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BEST 7KC Series Classroom Function Single Cylinder Grade 2 Lever Lock with SFIC Core

Professional Medium-Duty Cylindrical Lock Solution

The BEST 7KC Series cylindrical lever lock delivers Grade 2 performance for classroom applications with single cylinder operation and SFIC (Small Format Interchangeable Core) compatibility. Designed for 2 1/8" diameter bore preparation with backset options of 2 3/8", 2 3/4", 3 3/4", or 5", this lock accommodates door thickness from 1 3/8" to 2". Features include through-bolt mounting studs for enhanced torque resistance, 1/2" throw deadlocking latch, and zinc dichromate steel internal components with corrosion treatment for reliable performance.

Professional Features & Benefits

  • Grade 2 ANSI Performance: Exceeds ANSI Grade 2 requirements with BHMA A156.2 Series 4000 listing for reliable medium-duty applications.
  • Flexible Backset Options: Available in 2 3/8", 2 3/4", 3 3/4", and 5" backsets to accommodate various door preparations and architectural requirements.
  • Enhanced Security Design: No exposed keeper hole on keyed levers and removable keyed lever only after core removal for increased tamper resistance.
  • SFIC Core Compatibility: 7-pin solid brass interchangeable core enables quick rekeying and integration with BEST keying systems.
  • Reinforced Construction: Through-bolt mounting studs provide superior torque resistance while hub torque spring prevents lever sag over time.
  • ADA Compliant Operation: Meets ANSI A117.1 section 404.2.6 and Illinois Accessibility Standard requirements for accessible door hardware.
  • Fire Rating Certification: UL listed for 3-hour A label applications on single doors up to 4’ x 8’ for life safety compliance.
  • Corrosion-Resistant Materials: Internal steel mechanisms feature corrosion treatment for normal atmospheric conditions ensuring long-term reliability.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Door Hand Direction: Non-Handed
  • Duty Level: Medium Duty
  • Electronic: No
  • Grade: Grade 2
  • Handle Type: Lever
  • Keyed: Yes
  • Keyed Function: Single Cylinder
  • Product Attribute: Cylindrical Locks
  • Product Category: Mechanical Locks
  • Product Function: Classroom
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Substrate: Corrosion-Treated Metals
  • Product Type: Leversets
  • Series: 7KC Series
  • Subcategory: Bored Locksets

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including 2 1/8" diameter bore for lock housing, 1" diameter for latch tube, and door thickness between 1 3/8" to 2".
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for selected backset configuration.
  3. Prepare door by drilling required 2 1/8" bore and routing latch preparation according to manufacturer specifications for chosen backset option.
  4. Install through-bolt mounting studs and secure the cylindrical lock assembly to door per manufacturer torque specifications.
  5. Adjust lever operation and latch alignment for proper engagement with strike plate and smooth operation throughout full range of motion.
  6. Test lock operation including key function, lever return, and deadlocking latch engagement to verify proper installation and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Educational Facility Classrooms
  • Commercial Office Buildings
  • Healthcare Institution Patient Areas
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Retail Back-of-House Areas
  • Industrial Administrative Offices

Why Choose BEST Quality?

BEST 7KC Series lever locks deliver professional-grade reliability with corrosion-treated internal steel mechanisms and Grade 2 performance exceeding ANSI requirements. UL listed for 3-hour fire rating applications and BHMA certified for Series 4000 Grade 2 standards, these locks provide dependable security for demanding commercial environments. Engineered for medium-duty applications where consistent classroom function and quick rekeying capabilities are essential.

Product Specs

Series:
7KC Series
Grade:
Grade 2
Duty Level:
Medium Duty
Handle Type:
Lever
Keyed Function:
Single Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Subcategory:
Bored Locksets
Keyed:
Yes
Electronic:
No
Commercial/Residential:
Commercial
Product Attribute:
Cylindrical Locks
Product Function:
Classroom
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Product Substrate:
Corrosion-Treated Metals
Department:
Door Hardware

BEST 7KC37R14D-STK-626 – Frequently Asked Questions

1) Will the BEST 7KC classroom lever fit a 1-3/8 inch door, or does it need a 1-3/4 inch door?
Both work. The 7KC cylindrical lever lock covers a door thickness range of 1-3/8 to 2 inches, so it handles older 1-3/8 inch interior doors, standard 1-3/4 inch commercial doors, and thicker 2 inch leaves without a special kit. Door prep is a 2-1/8 inch bore for the lock housing and a 1 inch hole for the latch tube.
2) What backset do I order for a BEST 7KC lever lock, and does it match my existing door prep?
Two backsets are orderable on the 7KC: 2-3/8 inch and 2-3/4 inch, the two backsets almost every bored door in North America is prepped to. Measure from the door edge to the center of the 2-1/8 inch bore and order to match. The 7KC series is also built in 3-3/4 inch and 5 inch backsets for wider stile or special frame conditions.
3) How does classroom function work on a BEST 7KC lever lock, and is it the right function for a school door?
Classroom function means the outside lever is locked and unlocked by key only. There is no button or thumbturn on the inside, so nobody can accidentally lock the room, and the inside lever always retracts the latch for free egress. The teacher locks the corridor side from the hallway with the key. If your district requires locking the door from inside the room without stepping into the corridor, classroom function is the wrong choice and you want a classroom security or storeroom function instead.
4) Does the BEST 7KC take a small format interchangeable core, and can I key it into my existing BEST system?
The 7KC is built for a 7-pin solid brass SFIC core and integrates with BEST keying systems, so a facility already on BEST small format can pin its own cores and drop them in. That is the practical advantage for an institution: rekey a room in seconds with a control key rather than pulling the lock. The core is not the only security detail, either. The keyed lever has no exposed keeper hole and only comes off after the core is pulled.
5) Is a Grade 2 lever like the BEST 7KC heavy enough for a school classroom, or should I go Grade 1?
Grade 2 medium duty, listed to BHMA A156.2 Series 4000, is what the 7KC is built to. For classroom doors, offices, and back of house it holds up, and BEST reinforces it with through-bolt mounting studs for torque resistance plus a hub torque spring that keeps the lever from sagging. Where the opening is a high traffic entrance, a stairwell, or takes abuse, step up to a Grade 1 classroom lever such as the Dexter C1000 Series classroom lock, which we carry in a 1-3/8 to 1-3/4 inch door thickness range.
6) Will the BEST 7KC latch into the strike that is already in my frame?
The latch throws 1/2 inch and deadlocks, which is the standard bored lock throw, so an existing frame prepped for a cylindrical lockset will normally catch it. What decides it is the strike cutout. Order the S3 ANSI strike where the frame has the ANSI cutout and the STK standard strike where it does not. Backset has to match too, 2-3/8 or 2-3/4 inch, or the latch will not line up with the existing hole regardless of throw.
7) Is there another Grade 2 classroom lever with a 2-3/4 inch backset that uses a Schlage C keyway instead of a small format interchangeable core?
The Cal-Royal AG03 classroom lever is Grade 2 with a 6-pin Schlage C keyway keyed different and a 2-3/4 inch backset. The BEST 7KC classroom lever is built around a 7-pin SFIC core and comes in 2-3/8 inch and 2-3/4 inch backsets. Where a building is already keyed to Schlage C, the AG03 drops into that system; where the facility runs BEST interchangeable cores and rekeys by pulling the core, the 7KC is the one that stays in the keying scheme.
8) What is the closest Grade 1 alternative to the BEST 7KC classroom lever when the opening needs heavy duty instead of medium duty?
The Dexter C1000 Series classroom cylindrical lever lock is a Grade 1 keyed classroom function lever with clutching, listed for doors 1-3/8 inch to 1-3/4 inch thick. The BEST 7KC is a Grade 2 medium duty classroom lever that takes doors 1-3/8 inch to 2 inch. If the door leaf runs thicker than 1-3/4 inch, the 7KC covers the range the Dexter does not; if the classroom door sees heavy traffic and the spec calls Grade 1, the C1000 classroom is the direct function match.
9) What lever should be used instead of a classroom function on a storeroom or supply room door?
Storeroom function keeps the outside lever locked at all times and is released only by key, which is different behavior from classroom function where the key changes the state of the outside lever. The Hager 2580 is a Grade 2 storeroom cylindrical lever for doors 1-3/8 inch to 2 inch, and the Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for doors 1-3/8 inch to 1-3/4 inch. The BEST 7KC is classroom function with a 1/2 inch throw deadlocking latch, so put it on teaching and office spaces and use a storeroom lever where the door must never be left unsecured.
10) Does the Dexter C1000 classroom security lever do the same job as a BEST 7KC classroom lever?
No. The Dexter C1000 classroom security is a Grade 1 keyed lever with clutching whose function is classroom security, meaning both levers are controlled by key so the room can be secured from inside the classroom. The BEST 7KC is classroom function with a single cylinder, keyed from the outside only. If the requirement is that a teacher can lock the door without stepping into the corridor, the classroom security lock is the one that does it; the 7KC covers standard classroom function on the same kind of 2-1/8 inch bored door prep.
11) Is a Cal-Royal AUS00 or a Callan Artino leverset an equivalent swap for a BEST 7KC on a commercial classroom door?
They are not equivalent on grade. The Cal-Royal AUS00 is a Grade 3 entrance/office lever with a solid brass forged body for doors 1-3/8 inch to 1-3/4 inch, and the Callan Artino is a Grade 3 entrance leverset. The BEST 7KC is a Grade 2 commercial lever certified to BHMA A156.2 Series 4000 and UL listed for 3-hour A label single doors up to 4 feet by 8 feet. On a fire rated classroom opening or anywhere the specification calls Grade 2 commercial, the Grade 3 entrance levers do not meet the same standard.
12) On a door that only takes a 1-3/8 inch leaf, which cylindrical levers actually fit?
Door thickness rules several options out. The Corbin Russwin CL3110 vandal resistant passage lever and the Corbin Russwin 585F715 lever are listed for 1-3/4 inch to 2 inch doors, and the Arrow GL01 passage lever is listed for 1-3/4 inch to 2 inch, so none of them suit a 1-3/8 inch leaf. The BEST 7KC accommodates door thickness from 1-3/8 inch to 2 inch, as does the Hager 2510 Grade 2 passage lever, so those cover the thinner leaf.
13) Is a knob lockset an acceptable substitute for a classroom lever on an ADA opening?
No. The Arrow HK11-BB entrance lock uses a ball knob and the Arrow MK02-TA privacy lock uses a Tudor knob, both knob trim rather than lever trim. The BEST 7KC uses lever trim and meets ANSI A117.1 section 404.2.6 and the Illinois Accessibility Standard for accessible door hardware. Where accessible operation is required, the lever is the compliant trim and a knob lockset is not an equivalent swap even when the function and grade line up.
14) Do I need to specify handing when ordering a BEST 7KC lever lock?
No handing to specify. The 7KC is non-handed, so one lock covers left and right hand doors, in-swing or out-swing. For a property manager stocking spares across a building, that means a single part number sits on the shelf instead of two.
15) Is the BEST 7KC lever ADA compliant for accessible openings?
The 7KC lever meets ANSI A117.1 section 404.2.6 and the Illinois Accessibility Standard for accessible door hardware. Lever operation is what does it, no tight grasping or wrist twisting to retract the latch. All three lever styles offered (14 curved with return, 15 contour with angle return, 16 curved without return) are levers, so the choice is aesthetic and snag preference rather than a compliance decision.
16) I need to match existing lever locks in my building. What finishes does the BEST 7KC come in?
Six finishes on the 7KC: 605 bright brass, 606 satin brass, 612 satin bronze, 613 satin bronze oil-rubbed, 625 bright chrome, and 626 satin chrome. For most commercial buildings the match is 626 satin chrome, the standard institutional finish. Order to the BHMA number rather than the description and the lever will match the closers and hinges already on your openings.
17) What is the alternative when the classroom lever needs to be released remotely from an access control system?
An electrified lever is required for that. The Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever operating on 12VAC/DC for doors 1-3/4 inch to 2 inch thick. The BEST 7KC is a non-electronic mechanical lock, keyed from the outside with an SFIC core, so it cannot be tied into a card reader or release button. Use the 7KC on mechanically keyed openings and the electrified lever where the door is part of an access control loop.
18) The classroom door does not need to be keyed on the outside - what Grade 2 lever handles a corridor or closet opening instead?
For an opening that only needs latching with no key control, the Falcon B101 is a Grade 2 medium duty cylindrical passage lever with a non-handed design, and the Hager 2510 is a Grade 2 passage cylindrical lever for doors 1-3/8 inch to 2 inch thick. The BEST 7KC is a keyed single cylinder classroom function lever, so it carries the cylinder and core hardware a passage opening never uses. Match the passage locks to hall, closet and corridor doors, and keep the 7KC for the doors that must be locked and unlocked by key from the corridor side.
19) What Grade 2 keyed lever fits an office door where staff need to lock and unlock the outside lever with a push button rather than a key?
The Falcon B511CP6D is a Grade 2 medium duty cylindrical lever with entry/office function, and the Hager 2525 is a Grade 2 commercial cylindrical entry lever for doors 1-3/8 inch to 2 inch thick. Entry/office function lets the occupant control the outside lever from inside the room. The BEST 7KC is classroom function, where the outside lever state is changed by key from the corridor, which is what a school or institution wants on a classroom door but not usually what a private office wants.
20) What keyless lever set works on a door where issuing keys is not practical, and how does it differ from a keyed classroom lever?
The Lockey 2835DC is a double combination mechanical keyless lever lock with passage function for doors 1-3/16 inch to 2 inch, and the Lockey 1150 is a heavy duty mechanical keypad lever set with passage function for doors 1-1/8 inch to 2 inch. Both are entered by combination with no key and no cylinder. The BEST 7KC is a mechanical keyed lever using a 7-pin SFIC core, so it is rekeyed by swapping the core and belongs to a master keying system rather than a code that is shared verbally.
21) Which lever should go on a psychiatric or utility room where the door must not be lockable from inside?
Asylum function is the one to use there: the Dexter C1000 asylum (F87) is a Grade 1 cylindrical lock for doors 1-3/8 inch to 2 inch, and the Arrow MK33-BD-CS is a Grade 2 heavy duty asylum lock with a ball knob and a conventional cylinder in Schlage C keyway. Asylum function is keyed on both sides with no inside thumbturn or button. The BEST 7KC is classroom function with a single outside cylinder, so it leaves the inside lever always free to exit, which is what a classroom needs and what a secure patient or utility room does not.
22) Will the BEST 7KC hold up in a humid or damp area like a locker room or a coastal building?
Internal steel components on the 7KC are zinc dichromate with corrosion treatment, rated for normal atmospheric conditions. That covers indoor humidity and typical interior service. It is not a marine or wash-down rating, so for exterior openings taking direct weather or salt spray you want hardware specified for that exposure rather than a medium duty interior lever.
23) Can a dummy or half dummy lever be used to match the look of a keyed classroom lever on an inactive leaf?
Yes, for an inactive leaf or a false door a dummy trim is the right part. The Accentra 455LN Augusta is a Grade 1 single dummy cylindrical lever, the Callan Bentley 5051 is a Grade 2 dummy lever, and the Baldwin Estate 5103 comes as left hand and right hand half dummy levers with the 5048 rose. None of these latch or lock. The BEST 7KC is a keyed classroom lockset with a 1/2 inch throw deadlocking latch and through-bolt mounting studs, so it is the working half of the pair while a dummy supplies matching trim on the leaf that does not move.
24) For a residential-grade interior door in an apartment, is a Kwikset lever a workable alternative to a commercial classroom lockset?
For interior hall and closet doors it can be. The Kwikset 200BRNL Breton passage lever is Grade 3 for doors 1-3/8 inch to 1-3/4 inch, and the Kwikset 300BRNL Breton privacy lever is Grade 3 over the same thickness range. The BEST 7KC is a Grade 2 commercial classroom lockset that is keyed and takes an SFIC core. On unit interior doors that never get locked by key, the Grade 3 passage or privacy lever does the job; on the corridor and common area doors that must stay in a master key system, the 7KC is the one that carries the keying and the commercial grade.
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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 BEST 7KC37R14D-STK-626 come with a warranty?
Absolutely. The BEST 7KC37R14D-STK-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 BEST 7KC37R14D-STK-626?
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