Name: Corbin Russwin CK4332 Institutional/Utility Cylindrical Lock - Grade 1, Global Knob, Keyed
Brand: Corbin Russwin
SKU: CK4332 GRD 605
Price: 728.32 USD
Availability: InStock

Product Overview
FAQs

Corbin Russwin CK4332-KEYED Institutional Cylindrical Knobset - Grade 1, Double Cylinder, Deadlocking Latchbolt

Heavy-Duty Institutional Security for Demanding Commercial Applications

The Corbin Russwin CK4332-KEYED is a Grade 1 institutional cylindrical knobset engineered for high-use commercial, industrial, and institutional environments. Featuring a deadlocking latchbolt operable by key from either side with both knobs always rigid, this double-cylinder lock delivers maximum security and control. Designed for doors ranging from 1-3/8" to 2" in thickness with a 2-3/4" backset, the CK4332 is part of the proven CK4300 Series and includes a conventional 6-pin cylinder with two nickel silver keys and an ANSI curved lip strike measuring 4-7/8" x 1-1/4" x 1-1/4" lip to center.

Professional Features & Benefits

Door Thickness Compatibility: Accommodates doors from 1-3/8" to 2" thick, providing versatile fit across a wide range of commercial door configurations.
Deadlocking Double-Cylinder Function: Deadlocking latchbolt is operated by key from either side, with both knobs always rigid, ensuring maximum access control and security in institutional settings.
Heavy-Duty Knob Construction: Heavy wrought knobs are lined with steel for superior impact resistance, built to withstand the rigors of high-traffic institutional use.
Corrosion-Resistant Internal Components: Internal parts are zinc dichromate plated for long-lasting corrosion resistance, extending service life in demanding environments.
Stainless Steel Latchbolt: Features a 1/2" (13mm) stainless steel throw latchbolt for reliable, durable latching performance.
Standard Latch & Strike Included: Comes with a 787F66 deadlocking latch at 2-3/4" backset with square corner front (2-1/4" x 1-1/8" universal) and an ANSI curved lip strike at 4-7/8" x 1-1/4" x 1-1/4" lip to center.
Conventional 6-Pin Cylinder with Keys: Includes a conventional 6-pin cylinder and two nickel silver keys for immediate deployment upon installation.
Non-Handed Design: Non-handed configuration simplifies ordering and installation, eliminating the need to specify door handing.
Manufacturer Warranty: Backed by a 3-year manufacturer warranty for added confidence and protection.

Technical Specifications

Subcategory: Cylindrical Locks
Product Group: Mechanical Locks
Series: CK4300 Series
Grade: Grade 1
Keyed Function: Double Cylinder
Standard Latch: 787F66 - Deadlocking 2-3/4" Backset, Square corner front, 2-1/4" x 1-1/8" universal
Standard Strike: ANSI Curved Lip 4-7/8" x 1-1/4" x 1-1/4" lip to center
Warranty: 3 Year
ANSI/BHMA: F87
Product Subgroup: Bored Locksets
Product Type: Knobsets
Keyed: Yes
Fasteners: Wood and Machine Screws
Commercial/Residential: Commercial
Function Description: Deadlocking latchbolt by key either side. Both knobs always rigid.
Lock Type: Cylindrical
Handle Type: Knob
Lock Function: Asylum/Institution/Utility
Product Attribute: Cylindrical Locks
Product Model: CK4332
Product Function: Asylum/Institution/Utility
Door Hand Direction: Non-Handed
Door Thickness Range: 1-3/8" to 2"
Product Category: Mechanical Locks
Backset (Distance): 2-3/4"
Department: Door Hardware

Professional Applications

Schools and Educational Facilities
Hospitals and Nursing Homes
Hotels and Hospitality Properties
Apartments and Multi-Tenant Residential Properties
Churches and Houses of Worship
Municipal and Government Buildings
Airports and Transportation Facilities
Retail Complexes and Commercial Offices
Industrial and Warehouse Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin CK4300 Series cylindrical locks deliver professional-grade reliability with heavy wrought knobs steel-lined for impact resistance and zinc dichromate plated internal components for corrosion resistance. The CK4332-KEYED meets Grade 1 performance standards and ANSI/BHMA F87 classification, backed by a 3-year manufacturer warranty. Engineered for demanding commercial and institutional applications where dependable, long-term performance is essential.

Manufacturer Resources

Dummy Trim Knob Lock Installation Instructions

Product Specs

Subcategory:: Cylindrical Locks
Product Group:: Mechanical Locks
Series:: CK4300 Series
Grade:: Grade 1
Keyed Function:: Double Cylinder
Standard Latch:: 787F66 - Deadlocking 2-3/4" Backset, Square corner front, 2-1/4" x 1-1/8" universal
Standard Strike:: ANSI Curved Lip 4-7/8" x 1-1/4" x 1-1/4" lip to center
Warranty:: 3 Year
ANSI/BHMA:: F87
Product Subgroup:: Bored Locksets
Product Type:: Knobsets
Keyed:: Yes
Fasteners:: Wood and Machine Screws
Commercial/Residential:: Commercial
Function Description:: Deadlocking latchbolt by key either side. Both knobs always rigid.
Lock Type:: Cylindrical
Handle Type:: Knob
Lock Function:: Asylum/Institution/Utility
Product Attribute:: Cylindrical Locks
Product Model:: CK4332
Product Function:: Asylum/Institution/Utility
Door Hand Direction:: Non-Handed
Door Thickness Range:: 1-3/8" to 2"
Product Category:: Mechanical Locks
Backset (Distance):: 2-3/4"
Department:: Door Hardware

Corbin Russwin CK4332 GRD 605 – Frequently Asked Questions

1) Does the Corbin Russwin CK4332 knob lock need a key on both sides to open it?

Yes, and that is the whole point of the CK4332. The deadlocking latchbolt is operated by key from either side, and both knobs stay rigid at all times, so nobody passes through in either direction without a key. Turning a knob will never retract the latch. That makes it an institutional/utility function, used on utility rooms, mechanical spaces, and secure storage where free egress is not required by code for that opening. If the door is on an egress path, or people inside need to get out without a key, this is the wrong function and you want a storeroom function instead, where the outside is keyed and the inside knob always retracts the latch.

2) Will the CK4332 fit a 1-3/4 inch commercial door with a 2-3/4 inch backset?

That is exactly the opening it is built for. The CK4332 cylindrical knobset covers doors from 1-3/8 inches up to 2 inches thick, so a standard 1-3/4 inch commercial door sits in the middle of the range, and the lock ships at a 2-3/4 inch backset, the usual commercial bore. It is non-handed, so there is no left or right hand to specify, the same lock goes on either swing.

3) Will the Corbin Russwin CK4332 latch into the strike that is already in my frame?

Depends on what strike is in there now. The CK4332 comes with an ANSI curved lip strike, 4-7/8 by 1-1/4 with 1-1/4 lip to center, which is the full ANSI frame prep. If your frame is already prepped for a 4-7/8 inch ANSI strike, the new one drops straight into the existing cutout. If the frame has a small T-strike or a round corner residential strike, the ANSI plate will not cover that prep and you will be filling and re-cutting the jamb. The latch itself is a 787F66 deadlocking latch, 2-3/4 inch backset, square corner front, 2-1/4 by 1-1/8 universal, so an existing square corner door prep takes it as is.

4) What does the ANSI/BHMA F87 designation on the Corbin Russwin CK4332 mean for a spec?

F87 is the ANSI/BHMA function number carried by the CK4332, and it is the institutional/utility function, keyed both sides with both knobs permanently rigid. The lock is also Grade 1, the highest ANSI/BHMA cylindrical grade and the one commercial and institutional specs normally call for. If the drawing says F87 Grade 1 cylindrical knob, this is the part that answers it.

5) Can I order a batch of CK4332 locks keyed alike so one key runs all of them?

Yes. Keying is a required choice on the CK4332, either KD keyed different, which is standard and gives each lock its own key, or KA keyed alike, where every lock in the order takes the same key. Keyed alike is the usual pick when you are doing a run of utility or mechanical rooms and want one maintenance key. There is also a free-text field for special cylinder or keying requirements if you are tying the order into an existing master key system.

6) What is the LC option on the Corbin Russwin CK4332, and should I order it?

LC means less conventional cylinder: the lock ships without cylinders so you can install your own. Order it if your building runs a master key system and your locksmith will be pinning the cylinders to your existing keyway. The standard alternative is the conventional 6-pin cylinder in the L4 keyway, which arrives keyed and ready to hang. Both cylinder choices are offered in all three finishes, 605 bright brass, 613 satin bronze oil-rubbed, and 630 satin stainless steel. One thing to plan for on the LC version: it is a double cylinder lock, so you are supplying two cylinders per door, not one.

7) What is the closest Grade 1 heavy duty keyed knob lock to the Corbin Russwin CK4332 from another brand?

The Sargent 8XG04 is the nearest Grade 1 heavy duty keyed knob lock in the comparable group. It is a storeroom/closet function with a single cylinder and a 2-3/4 inch backset, the same backset the CK4332 uses. The functional difference matters: the CK4332 is a double cylinder lock, keyed from either side with both knobs always rigid, while the 8XG04 is keyed from the outside only. Use the 8XG04 where free egress by turning the inside knob is wanted; use the CK4332 where the opening must be key-operated from both faces. The BEST 8K Series 8K-AB is also Grade 1 heavy duty but an entrance function.

8) Which knob lock should I use on a classroom door instead of the Corbin Russwin CK4332?

A classroom opening usually needs an outside key that locks or unlocks the outside knob while the inside knob always retracts the latch, which is not what the CK4332 does - its deadlocking latchbolt is keyed from either side with both knobs always rigid. The Dexter C2000 classroom knob lock is a Grade 2 non-clutching keyed cylindrical knob for doors 1-3/8 inch to 1-3/4 inch thick and is the classroom function in the comparable group. Keep the CK4332 for utility, mechanical, and institutional rooms where both faces must be keyed.

9) I need a Grade 1 knob lock for a 2-1/4 inch thick door - will the Corbin Russwin CK4332 fit?

The CK4332 covers doors 1-3/8 inch to 2 inch thick. For a thicker leaf, the Falcon X101 is a Grade 1 heavy duty cylindrical knobset rated for doors 1-3/8 inch to 2-1/4 inch, though it is a passage function with an interchangeable core rather than a keyed double cylinder lock. Where the door is within 2 inch, the CK4332 is the Grade 1 keyed option.

10) How does the Corbin Russwin CK4332 compare to the BEST 8K Series entrance knob lock?

Both are Grade 1 heavy duty cylindrical knob locks. The BEST 8K-AB is an entrance function with a single cylinder, so the outside knob is keyed and can be left locked or unlocked while the inside knob always releases the latch. The CK4332 is a double cylinder institutional lock - the deadlocking latchbolt is keyed from either side and both knobs stay rigid, with a conventional 6-pin cylinder and an ANSI curved lip strike included. Choose by whether the inside face needs a key.

11) Which finish of the Corbin Russwin CK4332 knobset holds up best in a school or hospital corridor?

Three finishes are made on the CK4332: 605 bright brass, 613 satin bronze oil-rubbed, and 630 satin stainless steel. For high-traffic institutional work, 630 satin stainless is what most schools, hospitals, and government buildings standardize on, it hides wear and handprints and matches the 630 hardware already hanging on most commercial openings. 605 bright brass is a polished finish that shows fingerprints, and 613 oil-rubbed is a living finish that changes with handling, so both suit lower-traffic or design-led openings better.

12) What other Grade 1 cylindrical knob locks could I use in place of the Corbin Russwin CK4332?

Within Grade 1 cylindrical knobs, the closest peers are the Falcon X101, a heavy duty Grade 1 cylindrical knobset that takes an interchangeable core and covers 1-3/8 to 2-1/4 inch doors, the Sargent 8XG04 Grade 1 storeroom knob lock at a 2-3/4 inch backset, the BEST 8K Series Grade 1 heavy duty entrance knob, and the Schlage D10S Grade 1 heavy duty passage knob. None of those four is the double-cylinder institutional function the CK4332 provides, they are passage, entrance, and storeroom, so match on function first and grade second. The Falcon X101 is the one to look at if your building is on an interchangeable core system rather than conventional cylinders.

13) Is a Grade 2 knob lock good enough for a utility room, or do I need the Grade 1 CK4332?

For a utility, mechanical, or institutional door that gets hit all day, Grade 1 is the right call and the CK4332 is Grade 1 with an F87 institutional function. Grade 2 options like the Dexter C2000 Series classroom knob or the Sargent 6G04 storeroom knob are medium and standard duty, appropriate for tenant offices and interior doors but not for the abuse an institutional opening takes. The other thing Grade 2 will not give you is the double cylinder function, both the Dexter C2000 classroom and the Sargent 6G04 storeroom are single cylinder arrangements.

14) Does the Corbin Russwin CK4332 come with everything needed to hang it, or do I have to order the latch and screws separately?

Everything for the door is in the box. The CK4332 ships with the 787F66 deadlocking latch at a 2-3/4 inch backset, the ANSI curved lip strike, and both wood and machine screws, so it goes on a wood door or a hollow metal door without a separate fastener kit. Cylinders and keys come with it too unless you order the LC less-cylinder version, in which case you supply two cylinders yourself.

15) Is a Grade 1 passage knob like the Schlage D10S an alternative to the Corbin Russwin CK4332?

No. The Schlage D10S is a Grade 1 heavy duty passage latch knob lock in the D Series and is non-keyed - the knobs always turn and the door never locks. The CK4332 is keyed, with a deadlocking latchbolt operated by key from either side and both knobs always rigid. The two share a Grade 1 rating and nothing else functionally. A passage latch suits a corridor or closet door that only needs to stay shut; the CK4332 controls access.

16) What looks like a substitute for the Corbin Russwin CK4332 but will not lock a door?

Dummy trim is the common mistake. The BEST 6K Series single dummy trim is a Grade 2 medium duty non-keyed dummy knob, and the Schlage A170 is a Grade 2 heavy duty single dummy trim in the A Series. Both are surface-mounted knobs with no latch and no cylinder, used as a pull on an inactive leaf. The CK4332 is a keyed cylindrical lock with a deadlocking latchbolt keyed from either side. A dummy will never secure the opening.

17) I need a fire rated knob lock - is the Corbin Russwin CK4332 the right pick, or should I look at a Falcon?

Both Falcon knobsets in the comparable group carry a fire rating: the W101 is Grade 2 medium duty with a 2-3/4 inch backset and the X101 is Grade 1 heavy duty with an interchangeable core. Both are passage/closet latch functions, so neither locks. If the labeled opening needs a key from both faces, the CK4332 is the Grade 1 keyed cylindrical lock with a deadlocking latchbolt and ANSI/BHMA F87 classification; confirm the label requirements for the specific door assembly with your AHJ before substituting either way.

18) Is a keyless combination knob lock an alternative to the Corbin Russwin CK4332 for a utility room?

The Lockey 3830 is a mechanical keyless combination knob lock with an auto-locking passage function for doors 1 3/16 inch to 2 inch thick - it removes keys from the opening entirely, which suits a shared utility or mechanical room where issuing keys is the problem. It is a passage function, so it does not deadlock from both faces. The CK4332 keeps the opening on the key system, with a conventional 6-pin cylinder and a deadlocking latchbolt keyed from either side, and it can be ordered keyed alike across multiple locks.

19) Can I standardize a facility on the Corbin Russwin CK4332 and still use matching knobs on non-keyed doors?

The CK4332 is non-handed and covers doors 1-3/8 inch to 2 inch, so it repeats across openings without specifying hand. For the non-keyed doors in the same program, the Grade 1 peers are the Schlage D10S passage latch knob and the Falcon X101 passage knobset, both heavy duty; at Grade 2 the Dexter C2000 family offers passage and privacy ball knob versions on a common 1-3/8 inch to 1-3/4 inch door range. Knob shape and finish will not visually match across brands, so specify one brand per sightline where appearance matters.

How fast can I get the Corbin Russwin CK4332 GRD 605 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 Corbin Russwin CK4332 GRD 605 come with a warranty?

Absolutely. The Corbin Russwin CK4332 GRD 605 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 Corbin Russwin CK4332 GRD 605?

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 Corbin Russwin CK4332 GRD 605 from ZenSupply?

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Corbin Russwin CK4332 Institutional/Utility Cylindrical Lock - Grade 1, Global Knob, Keyed

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