Name: BEST 9K Series Privacy Cylindrical Lever Lock - Grade 1 Non-Keyed with 2-3/4" Backset
Brand: BEST
SKU: 9K30L14CSTK626
Price: 475.45 USD
Availability: InStock

Product Overview
FAQs

BEST 9K Series Privacy Cylindrical Lever Lock - Grade 1 Non-Keyed with 2-3/4" Backset

Premium Grade 1 Privacy Lock Solution

The BEST 9K Series Privacy Cylindrical Lever Lock delivers professional-grade security with Grade 1 BHMA certification and heavy-duty construction. Featuring a 2-3/4" backset and non-keyed privacy function, this lock operates by rotating the inside lever or outside lever only when the inside push button is out. Built with critical latch and chassis components of brass or corrosion-treated steel, the 9K series is designed for 1-3/4" to 2-1/4" doors with exceptional durability and smooth operation.

Professional Features & Benefits

Door Compatibility: Designed for 1-3/4" to 2-1/4" doors with 2-3/4" standard backset for versatile commercial applications.
Grade 1 Certification: BHMA listed for A156.2, Series 4000, Grade 1 providing the highest level of commercial-grade performance and security.
Heavy-Duty Construction: Critical latch and chassis components are brass or corrosion-treated steel with zinc hubs and hardened steel alloy sleeve for maximum durability.
Attack-Resistant Design: Rose locking pin assembly and slotted key release cam design provide exceptional torque resistance and prevent twisting, bending, or breaking under attack.
Smooth Operation: Hub-mounted torsion spring and strong retractor springs prevent lever sag and deliver smooth, snappy operation throughout the lock’s service life.
Fire Rating Compliance: UL listed for use on 3-hour A label single or double swinging doors for code compliance in fire-rated applications.
ADA Compliance: Design and operation meets ANSI A117.1 section 404.2.6 requirements for accessibility in commercial buildings.
10-Year Warranty: Comprehensive 10-year manufacturer warranty provides long-term confidence and protection for commercial installations.

Technical Specifications

ANSI/BHMA: F76
Backset (Distance): 2-3/4"
Commercial/Residential: Commercial
Department: Door Hardware
Door Hand Direction: Non-Handed
Duty Level: Heavy Duty
Electronic: No
Function Description: Latch operated by Rotating the inside lever, Rotating the outside lever only when the inside push button is out. Outside Lever is locked by Pushing the inside button,Inside lever is always unlocked and cannot be locked.
Grade: Grade 1
Handle Type: Lever
Keyed: No
Keyed Function: Non-Keyed
Lock Function: Privacy/Bed/Bath
Lock Type: Cylindrical
Product Attribute: Cylindrical Locks
Product Category: Mechanical Locks
Product Function: Privacy/Bed/Bath
Product Group: Mechanical Locks
Product Model: L
Product Subgroup: Bored Locksets
Product Substrate: Corrosion-Treated Steel
Product Type: Leversets
Series: 9K Series
Standard Latch: 9/16" Throw
Standard Strike: 2-3/4 x 1-1/8" with curved lip and box
Subcategory: Cylindrical Locks
Warranty: 10 Year

Installation & Operation

Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" to 2-1/4"), 2-3/4" backset, and non-handed installation compatibility.
Use manufacturer-provided templates to mark mounting hole locations accurately including standard ANSI A115.2 preparation plus two additional 5/16" diameter through-bolt holes at 12 o’clock and 6 o’clock positions.
Prepare door by drilling required holes including 2-1/8" diameter hole for chassis and routing as specified in manufacturer instructions.
Install through-bolt mounting studs and secure the lock assembly to door per manufacturer torque specifications for maximum attack resistance.
Adjust latch throw (9/16") and strike alignment for proper latching and smooth lever operation throughout the full range of motion.
Test privacy function operation including inside lever rotation, outside lever operation with push button engaged/disengaged, and verify proper latch engagement. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

Commercial Office Buildings
Educational Facilities
Healthcare Institutions
Hospitality and Hotel Properties
Multi-Tenant Residential Properties
Government and Municipal Buildings
Industrial and Warehouse Facilities

Anti-Microbial Option

BEST UltraShield™ antimicrobial protected coating (finish 626AM) is available for applications where product cleanliness is a high priority, including healthcare, elderly care, education, transportation, food service, and hospitality environments. The UltraShield™ finish inhibits the growth of bacteria and other microbes on the hardware surface.

Why Choose BEST Quality?

BEST 9K Series cylindrical locks deliver professional-grade reliability with brass and corrosion-treated steel construction rated for heavy-duty commercial applications. The comprehensive 10-year warranty and Grade 1 BHMA certification ensure long-term performance and code compliance. Engineered for demanding commercial environments where dependable security and smooth operation are essential, the 9K series combines top-quality materials with exceptional craftsmanship for lasting value.

Manufacturer Resources

9K Series Catalog

Service Manual for 9K Series

Product Specs

Series:: 9K Series
Subcategory:: Cylindrical Locks
Grade:: Grade 1
Duty Level:: Heavy Duty
Handle Type:: Lever
Keyed Function:: Non-Keyed
Warranty:: 10 Year
Standard Latch:: 9/16" Throw
Standard Strike:: 2-3/4 x 1-1/8" with curved lip and box
ANSI/BHMA:: F76
Product Group:: Mechanical Locks
Product Subgroup:: Bored Locksets
Product Type:: Leversets
Keyed:: No
Electronic:: No
Commercial/Residential:: Commercial
Function Description:: Latch operated by Rotating the inside lever, Rotating the outside lever only when the inside push button is out. Outside Lever is locked by Pushing the inside button,Inside lever is always unlocked and cannot be locked.
Lock Type:: Cylindrical
Lock Function:: Privacy/Bed/Bath
Product Attribute:: Cylindrical Locks
Product Model:: L
Product Function:: Privacy/Bed/Bath
Door Hand Direction:: Non-Handed
Product Category:: Mechanical Locks
Product Substrate:: Corrosion-Treated Steel
Backset (Distance):: 2-3/4"
Department:: Door Hardware

BEST 9K30L14CSTK626 – Frequently Asked Questions

1) Will the BEST 9K privacy lever fit a 2-inch thick door?

Yes. The 9K Series cylindrical lever is built for doors from 1-3/4 inches up to 2-1/4 inches thick, so a 2 inch door is inside the range with no special order. Below 1-3/4 inches you are outside what the 9K covers.

2) What backset do I need to order for a BEST 9K privacy lever on a wide-stile or double-door opening?

Three backsets are offered on the 9K privacy lever: 2-3/4 inches (the standard commercial backset and what the lock ships as by default), 3-3/4 inches, and 5 inches. The two long backsets are what you pick when the lever would otherwise land too close to the edge on a wide rail or a door with an astragal. Measure from the door edge to the center of the 2-1/8 inch bore and order to match; the wrong backset will not reach the existing prep.

3) Do I have to specify handing on a BEST 9K privacy lever?

No handing to call out. The 9K privacy lock is non-handed, so one part covers left and right hand openings and you are not stuck with a wrong-hand lock on site. That matters if you are stocking spares for a building where the doors swing both ways.

4) Will a BEST 9K privacy lock latch into the strike that is already in my frame?

The 9K privacy lever uses a 9/16 inch latch throw and its standard strike is 2-3/4 x 1-1/8 inches with a curved lip and box. Two strike choices are offered: the STK 2-3/4 inch ANSI strike and the S3 4-7/8 inch ANSI strike. If your frame is prepped for a 4-7/8 inch ANSI strike, order the S3 and the existing frame cutout is reused. If the frame carries the smaller T-strike prep, take the STK. Matching the strike to the existing frame prep is the difference between a drop-in swap and doing frame work.

5) What door prep does a BEST 9K lever need beyond a standard 161 bore?

Standard ANSI A115.2 prep plus two extra 5/16 inch diameter through-bolt holes at the 12 o'clock and 6 o'clock positions, around a 2-1/8 inch chassis bore. Those two through-bolt holes are the part people miss: the 9K mounts on through-bolt studs rather than screwing into the rose, which is where its torque resistance comes from. On a retrofit into a plain 2-1/8 inch bore you will be drilling those two holes.

6) How does a privacy lever lock actually work, and can someone get in from the hall in an emergency?

On the 9K privacy function, the inside lever always retracts the latch and can never be locked, so nobody gets trapped in a bathroom or bedroom. Pushing the inside button locks the outside lever; the outside lever only turns when that button is out. There is no key on this one, it is a non-keyed lock. If you need staff to be able to open a locked restroom from the corridor, a privacy lock is the wrong function and you want a keyed or emergency-release function instead.

7) Is the BEST 9K lever approved for a fire-rated door and does it meet ADA?

The 9K is UL listed for 3-hour A label single or double swinging doors, and its design and operation meet ANSI A117.1 section 404.2.6 for accessibility. It carries BHMA A156.2, Series 4000, Grade 1 certification, ANSI function F76. That combination is what an institutional spec usually calls for on a restroom or patient room door.

8) What is the closest Grade 1 privacy lever lock to the BEST 9K privacy lock if the 9K is not the right fit?

The Arrow MK02-TA is the nearest peer on function and grade: it is a Grade 1 privacy lock with a fire rating, but it is supplied with a Tudor knob rather than a lever. The BEST 9K privacy lock is a Grade 1 non-keyed cylindrical privacy lockset with a lever handle, offered in Contour with Angle Return, Curved with Return, and Curved without Return lever styles. If the opening needs a lever for accessibility, the 9K carries the lever trim; if a knob is acceptable, the MK02-TA covers the same privacy function.

9) The door does not need to lock at all - what replaces a BEST 9K privacy lever with a passage function at the same Grade 1 level?

For a corridor, hall, or closet door where no locking is wanted, the Falcon K101 is a Grade 1 heavy duty passage cylindrical lock with non-handed levers and a fire rating, covering doors 1-3/8 inch to 2-1/4 inch. The Corbin Russwin CL3110 is a Grade 1 vandal resistant passage/closet cylindrical lever lock, fire rated, for 1-3/4 inch to 2 inch doors. The BEST 9K privacy lock differs in that the outside lever is locked by pushing the inside button, which a passage lock has no provision for.

10) What should I order instead of a BEST 9K privacy lock when the door has to be keyed?

The 9K privacy lever is non-keyed - it works by push button only. For a keyed opening, the Dexter C1000 Grade 1 entry/office cylindrical lever lock is keyed and clutching for doors 1-3/8 inch to 1-3/4 inch, the Dexter C1000 Grade 1 classroom lever is keyed and clutching over the same thickness range, and 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. Choose by who must be able to unlock the door rather than by grade alone.

11) Our spec calls for Grade 1 throughout - which lever locks meet that and which fall short?

The BEST 9K privacy lever is Grade 1 to ANSI/BHMA F76. Among peer lever locks, the Falcon T101 is a Grade 1 heavy duty passage lever with pressure release technology, the Falcon K101 is a Grade 1 heavy duty passage lock, the Design Hardware X75 is a Grade 1 passage lever lockset with a flat lever for 1-3/4 inch doors, and the Corbin Russwin CL3110 is Grade 1. The Design Hardware J75 passage lever, the Falcon B101 medium duty passage lever, the Hager 2510 passage lever, and the Accentra 5301LN Augusta passage lever are Grade 2 and would not satisfy a Grade 1 line item.

12) The opening is a wide stile or thick door needing a 5 inch backset - what lever locks reach that?

The BEST 9K privacy lever is available in 2-3/4 inch, 3-3/4 inch, and 5 inch backsets, with the 2-3/4 inch as the standard, and it takes either a 2-3/4 inch STK ANSI strike or a 4-7/8 inch S3 ANSI strike. Among peers, the Cal-Royal AG03 classroom lever is built to a 2-3/4 inch backset and the Cal-Royal AG00 entrance lever to a 2-3/8 inch backset, so an extended backset opening is where the 9K range separates from them.

13) Which rose and lever style do I pick to match the BEST 9K locks already on my other doors?

Two rose sizes are offered, the C rose at 3 inches convex and the D rose at 3-1/2 inches convex, and three lever shapes: contour with angle return, curved with return, and curved without return. If you are adding to an existing building, pull one of the installed locks and match the rose diameter first, since that is what shows the old paint ring or covers an oversized bore. Levers with a return curve back toward the door and are what most commercial specs ask for; the no-return lever is the plain straight-ended shape.

14) Is there a BEST 9K finish for a hospital or food service door where hygiene matters?

Yes, 626AM Satin Chrome with the BEST UltraShield antimicrobial coating, which inhibits growth of bacteria and other microbes on the hardware surface. It is intended for healthcare, elderly care, education, transportation, food service and hospitality. Twelve finishes are offered in total, from 605 Bright Brass and 606 Satin Brass through 622 Matte Black, 619 Satin Nickel, 626 Satin Chrome and 690 Statuary Dark Bronze, so the antimicrobial version can sit alongside standard 626 elsewhere in the building and still look the same.

15) Is a Grade 1 privacy lever like the BEST 9K worth it over a Grade 2 or Grade 3 privacy lock?

Depends on the traffic. The 9K is Grade 1, heavy duty, with brass or corrosion-treated steel latch and chassis parts, zinc hubs, a hardened steel alloy sleeve and a hub-mounted torsion spring that keeps the lever from sagging. That is what you want on a public restroom in an office building or school. For a light-traffic interior bedroom or bath, a Grade 2 privacy lock such as the Hager 2540 with the Withnell lever, or a Grade 3 like the Kwikset 300BRNL Breton privacy lever, covers the same function at a lighter duty rating. Note the Hager and Kwikset are rated for thinner doors than the 9K, so check your door thickness before substituting.

16) I need a passage lever, not privacy, to match the BEST 9K locks in the same corridor. What do I use?

The 9K privacy is non-keyed with a push-button, so it will not work where you want a door that never locks. For a Grade 1 passage lever at the same duty level, the Falcon K101 covers 1-3/8 to 2-1/4 inch doors, is fire rated and non-handed, and the Corbin Russwin CL3110 is a Grade 1 vandal-resistant passage lever, fire rated, for 1-3/4 to 2 inch doors. Design Hardware X75 is another Grade 1 passage lever, rated for 1-3/4 inch doors only. Lever shape and rose will not match the BEST exactly across brands, so keep one brand per elevation if appearance matters.

17) Can I use the BEST 9K privacy lever on a utility or institutional door instead of a bathroom?

Not a good match. Privacy function means the inside lever can never be locked, which defeats the point on a utility closet or an institutional room where you want control from both sides. For that, the Arrow MK33-BD-CS is an asylum function lock with a ball knob and a Schlage C keyway conventional cylinder, and the Dexter C1000 asylum (F87) is a Grade 1 option for 1-3/8 to 2 inch doors. Both hold the door secured from either side rather than releasing to a free inside lever.

18) Can a keypad lever be substituted for a BEST 9K privacy lever on a staff restroom?

A keypad lever answers a different question. 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 Delaney LP250 is a Grade 2 electronic keypad leverlock. Those control who may enter by code; the BEST 9K privacy function instead gives the occupant a push button on the inside, is non-keyed, and is non-electronic. For a restroom the occupant locks behind themselves, so the privacy function is the one that matches the use.

19) Is there a lighter duty privacy lever than the BEST 9K for an interior residential-style door?

The Kwikset 300BRNL RDT Breton privacy lever set is a Grade 3 privacy lock for doors 1-3/8 inch to 1-3/4 inch. The Hager 2540 is a Grade 2 cylindrical privacy lock with the Withnell lever for doors 1-3/8 inch to 2 inch. The BEST 9K privacy lever is a Grade 1 heavy duty commercial lockset with critical latch and chassis components of brass or corrosion-treated steel, and it accepts doors 1-3/4 inch to 2-1/4 inch, so it reaches thicker doors than either.

20) Will a dummy lever work in place of a BEST 9K privacy lever on a bathroom door?

No - a dummy lever is a surface-applied pull with no latch. The Accentra 455LN Augusta is a Grade 1 single dummy cylindrical lever, and the Baldwin Estate 5103 half dummy comes in left hand and right hand versions. None of them retract a latch. The BEST 9K privacy lever is a cylindrical lockset with a latch of 9/16 inch throw and a 2-3/4 x 1-1/8 inch strike with curved lip and box, so it latches the door and locks the outside lever by push button.

21) Which privacy lever matches a Baldwin Estate 5103 privacy lever already on the other doors?

The Baldwin Estate 5103 privacy lever with 5048 rose is itself the privacy function in that family, and Baldwin also lists the 5103 as a passage lever with the same 5048 rose for doors that do not lock. The BEST 9K privacy lever is a different route to the same function: Grade 1, non-handed, with C rose at 3 inch convex or D rose at 3-1/2 inch convex and twelve finishes from bright brass through matte black and satin chrome antimicrobial. Match the rose diameter and finish before assuming trims will read alike across a fleet.

22) Is an exit device lever trim the same thing as a cylindrical privacy lever lock?

No. The Corbin Russwin 585F715 is a Grade 1 lock lever for the ED8000 pushpad exit device and the CL3300 cylindrical lock series, and the Imperial USA ED-EL500HD is a heavy duty escutcheon lever trim for entry function on the ED-500 series - both are trim that mounts to a device or chassis rather than a complete bored lockset. The BEST 9K privacy lever is a complete cylindrical lockset with its own chassis, latch, and strike, prepped to ANSI A115.2 with two additional 5/16 inch through-bolt holes.

23) The door is electrified for access control - what takes the place of a BEST 9K privacy lever there?

The Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever lock running on 12VAC/DC for doors 1-3/4 inch to 2 inch, with an NZ lever and D rose. The BEST 9K privacy lever is a non-electronic mechanical lockset, so an opening that must release on a signal from an access control panel calls for the electrified chassis rather than a privacy function.

24) How does the BEST 9K lock resist someone yanking or twisting the lever?

The chassis uses a rose locking pin assembly and a slotted key release cam design for torque resistance, so the trim resists twisting, bending or breaking under attack, and the lock through-bolts to the door rather than relying on rose screws. Chassis and latch components are brass or corrosion-treated steel with zinc hubs and a hardened steel alloy sleeve. On abuse-prone openings, torque the through-bolt studs to the manufacturer's spec, since that is what carries the attack load.

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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 9K30L14CSTK626 come with a warranty?

Absolutely. The BEST 9K30L14CSTK626 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 9K30L14CSTK626?

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BEST 9K Series Privacy Cylindrical Lever Lock - Grade 1 Non-Keyed with 2-3/4" Backset