Corbin Russwin CL3557 Grade 2 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$911.84
$480.55
Corbin Russwin Corbin Russwin CL3557 Storeroom/Closet Heavy-Duty Cylindrical Lever Lock COR-CL3557-KEYED

Corbin Russwin CL3557 Grade 2 Storeroom/Closet Heavy-Duty Cylindrical Lever Lock

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Model: CL3557 NZD 626
$911.84
$480.55
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  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different ADDER-CORBIN RUSSWIN-[KEYING]=KD - Keyed Different
  • Corbin Russwin ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike ADDER-CORBIN RUSSWIN-[KEYING]=KA - Keyed Alike
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$480.55
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Corbin Russwin CL3557-KEYED Heavy-Duty Grade 1 Storeroom/Closet Cylindrical Lever Lock with Deadlocking Latchbolt

Commercial-Grade Storeroom Security with ANSI/BHMA Grade 1 Certification

The Corbin Russwin CL3557-KEYED is a heavy-duty Grade 1 cylindrical lever lock engineered for storeroom and closet applications (ANSI function F86) in demanding commercial, institutional, and multi-family environments. The lock features a deadlocking latchbolt that is operated by key in the outside lever or by rotating the inside lever, with the outside lever freewheeling in the locked position while the inside lever remains always free. Designed for doors ranging from 1-3/8" to 1-3/4" in thickness with a 2-3/4" backset, the CL3557-KEYED is built on the proven CL3500 Series platform and includes a brass 6-pin cylinder with L4 keyway and two nickel silver keys. The most common configuration features the NZD Newport lever in a 626 Satin Chrome finish.

Professional Features & Benefits

  • Grade 2 standard-duty lever lockset per ANSI/BHMA A156.2 Series 4000, Grade 2
  • Lever Release freewheeling levers for vandal resistance
  • Solid cast levers with no plastic inserts
  • Thrubolts prevent chassis rotation; ensure alignment, smooth operation and long life
  • Non-handed spring cassette prevents lever sag
  • 1/2" throw latchbolt accommodates 7/8" and 1" edge bore preps
  • 2-3/8", 2-3/4", 3-3/4" and 5" backsets available
  • UL/cUL listed for 3-hour fire doors up to 4' x 10'
  • 14 finishes plus MicroShield® antimicrobial options
  • High Security and security key systems available (Access 3®, Pyramid)
  • Five-year limited warranty

Technical Specifications

  • Grade: ANSI/BHMA A156.2 Series 4000, Grade 2
  • Door Prep: ANSI/BHMA A156.115
  • Handing: Non-handed
  • Door Thickness: 1-3/8" to 1-7/8" (35–48mm) standard; optional 2" 2-1/4" (57mm)
  • Backset: 2-3/4" (70mm) standard; optional 2-3/8", 3-3/4", 5"
  • Latchbolt: Stainless steel, 1/2" (13mm) throw
  • Front: Wrought brass, bronze, or stainless steel, 2-1/4" x 1-1/8" (standard)
  • Strike: Wrought brass or stainless steel, ANSI curved lip, 4-7/8" x 1-1/4" x 1-1/4" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Minimum Stile: 4-1/2" (114mm)
  • Certifications: ANSI/BHMA A156.2 Grade 2; UL/cUL 3-hour fire rating; ADA A117.1; NFPA 80; Windstorm/Hurricane certified
  • Warranty: Five-year limited

Professional Applications

  • Commercial Office Buildings — Storeroom and Supply Closet Security
  • Interior Offices and Private Workspaces
  • Apartment Complexes and Multi-Family Residential Properties
  • Convalescent and Elderly Care Facilities
  • Hotels and Hospitality Properties
  • Restaurants and Retail Centers
  • Educational and Institutional Facilities

Why Choose Corbin Russwin Quality?

Corbin Russwin CL3500 Series cylindrical lever locks deliver professional-grade reliability through solid cast lever construction, independent return springs, and a through-bolted chassis — all certified to ANSI/BHMA Grade 1 standards for heavy-duty commercial performance. The steel substrate with zinc dichromate treatment provides corrosion resistance, while the 7 Year Limited warranty underscores the brand's commitment to lasting quality. Engineered to complement the full Corbin Russwin cylindrical lockset family, the CL3557-KEYED is a dependable choice for facilities where consistent, secure operation is non-negotiable.

Manufacturer Resources

Corbin Russwin Condensed Catalog

Product Specs

Subcategory:
Cylindrical Locks
Product Group:
Mechanical Locks
Series:
CL3500 Series
Grade:
Grade 1
Duty Level:
Heavy Duty
Keyed Function:
Single Cylinder
Lock Function Description:
Deadlocking latchbolt by key in outside lever or by rotating inside lever. (Lever handle is freewheeling in locked position). Inside lever always free.
Standard Cylinder:
Conventional 6-pin Cylinder, L4 Keyway
Standard Latch:
Deadlatch - Square corner front, 2-1/4" x 1-1/8", 2-3/4" backset
Standard Strike:
ANSI Curved Lip 1-1/4" Lip Length
Warranty:
7 Year Limited
ANSI/BHMA:
F86
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Handle Type:
Lever
Lock Function:
Storeroom/Closet
Product Attribute:
Cylindrical Locks
Product Model:
CL3557
Product Function:
Storeroom
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/8" to 1-3/4"
Fire Rating:
Yes
Product Category:
Mechanical Locks
Product Substrate:
Steel, Zinc dichromated for corrosion resistance
Backset (Distance):
2-3/4"
Department:
Door Hardware

Corbin Russwin CL3557 NZD 626 – Frequently Asked Questions

1) What does the storeroom function on the CL3557 actually do at the door?
The outside lever on the CL3557 is always locked and freewheels when you turn it, so nobody gets in from the corridor without a key. Key in the outside lever retracts the deadlocking latchbolt for entry. The inside lever is always free, so anyone in the storeroom can walk out at any time without a key or a thumbturn. That is ANSI function F86. Nothing about it can be left unlocked by accident, which is why it is the standard choice for supply closets, mechanical rooms and janitor closets in commercial buildings.
2) Does the CL3557 have to be ordered left hand or right hand?
No handing to specify. The CL3557 is non-handed, so one part number works on a left or right hand door swinging either way. That matters if you are stocking spares for a building: one lock covers every storeroom opening regardless of swing.
3) Can I key the Corbin Russwin CL3557 into my existing small format interchangeable core system?
Yes, if that system is Corbin Russwin. The CL3557 can be ordered as CL6 (less core, LFIC 6-pin) or CL7 (less core, LFIC 7-pin) so your locksmith drops in your own Corbin Russwin cores. Ordered as standard it comes with a conventional 6-pin brass cylinder in the L4 keyway. There is also an LC option, less conventional cylinder, if you are supplying your own conventional cylinder. Keyed alike and keyed different are both available if you want one key to open every storeroom on the floor.
4) Should I use a storeroom lever or a classroom or entry function on a supply closet?
Storeroom is the right call when the door must never be left unlocked. The CL3557 keeps the outside lever locked at all times with no way to hold it in a retracted state, so a staff member cannot prop the room open by mistake. Choose a classroom function instead when you need someone with a key to leave the lever unlocked for a period, like the Cal-Royal AG03 classroom lever or the Dexter C1000 classroom lock. Choose an entrance/office function, such as the Hager 2525, when occupants need to lock and unlock the door themselves from inside without a key. For a closet that needs no security at all, a passage set like the Falcon K101 is the cheaper prep.
5) My door is 2 inches thick. Will the CL3557 work?
No. The CL3557 is built for 1-3/8 to 1-3/4 inch doors and a 2 inch door is outside that range. For a thicker leaf, the Falcon K101 Grade 1 cylindrical lock covers 1-3/8 to 2-1/4 inches, and the Hager 2510 and 2525 cover 1-3/8 to 2 inches, though those are passage and entry functions rather than storeroom.
6) What is the closest storeroom lever lock to the Corbin Russwin CL3557 if I need the same F86 function?
Two storeroom-function lever locks sit closest to the CL3557. The Cal-Royal AG05 is a Grade 2 storeroom leverset with a deadlocking latchbolt for doors 1-3/8 inch to 1-3/4 inch, and the Hager 2580 with the Withnell lever is a Grade 2 storeroom cylindrical lock for doors 1-3/8 inch to 2 inch. The CL3557 itself is an ANSI F86 storeroom/closet lever lock, non-handed, with a 2-3/4 inch backset and a conventional 6-pin L4 keyway cylinder, and its outside lever freewheels when locked while the inside lever is always free. If your opening is thicker than 1-3/4 inch, the Hager 2580 covers up to 2 inch.
7) I need an office door where staff can lock the outside lever with a pushbutton instead of a key. What lever lock does that?
The Corbin Russwin CL3557 is a storeroom/closet lock, so its outside lever is always locked and there is no way to leave it unlocked for the day. For an office that needs to be latched open during business hours and secured by the occupant, use an entrance/office function instead. The Dexter C1000 is a Grade 1 entry/office cylindrical lever lock, clutching and keyed, for doors 1-3/8 inch to 1-3/4 inch. The Falcon B511CP6D is a Grade 2 medium-duty cylindrical lever lock with entry/office function, and the Hager 2525 is a Grade 2 commercial cylindrical entry lock with a lever handle for doors 1-3/8 inch to 2 inch.
8) My door is 2 inches thick. Is the Corbin Russwin CL3557 the right cylindrical lever lock?
The CL3557 is specified for doors 1-3/8 inch to 1-3/4 inch, so a 2 inch door falls outside that range. Among heavy-duty cylindrical lever locks, the Falcon K101 is a Grade 1 heavy-duty non-handed cylindrical lock rated for doors 1-3/8 inch to 2-1/4 inch and is fire rated, and the Dexter C1000 asylum version is a Grade 1 cylindrical lock for doors 1-3/8 inch to 2 inch. The Hager 2580 storeroom lock with the Withnell lever also covers 1-3/8 inch to 2 inch at Grade 2. Note that the Falcon K101 is passage function, so it does not lock.
9) Can I use a passage lever lock in place of the Corbin Russwin CL3557?
No. The CL3557 is a keyed storeroom/closet lock with a deadlocking latchbolt operated by key in the outside lever, so it secures the room. Passage locks look similar but have no cylinder and never lock: the Falcon K101 is a Grade 1 heavy-duty non-handed passage cylindrical lock, the Falcon T101 is a Grade 1 heavy-duty passage lever lock with pressure release technology, the Design Hardware X75 is a Grade 1 passage lever lockset for 1-3/4 inch doors, and the Accentra 5301LN Augusta is a Grade 2 passage/closet cylindrical lever lock. Use those only where the closet does not need to be secured.
10) I am standardizing a facility on one keyway. How does the Corbin Russwin CL3557 cylinder compare to other commercial lever locks?
The CL3557 ships with a conventional 6-pin cylinder in the Corbin Russwin L4 keyway, and it can also be ordered less core for a Corbin Russwin large format interchangeable core in 6-pin or 7-pin, or less conventional cylinder if you are supplying your own. Several comparable locks are built on the Schlage C keyway instead, including the Cal-Royal AG00 entrance lever with a 6-pin Schlage C keyway keyed different, the Cal-Royal AG03 classroom lever with the same keyway, and the Arrow MK33-BD-CS with a conventional Schlage C keyway cylinder. If the building is already on Schlage C, the less-cylinder options on the CL3557 let you fit your own core rather than change keyways.
11) How durable is the CL3557 for a high traffic building, and what is the lever made of?
It is a heavy duty commercial lockset built on a steel substrate with a zinc dichromate treatment for corrosion resistance, so it holds up in service corridors and back-of-house openings where a residential-grade set would not. The lever freewheels when locked rather than resisting a forced turn, which is what protects the chassis from someone yanking on a locked door. For a Grade 3 residential-level lever this is the wrong product class entirely.
12) Can I key all the storeroom doors in my building to one key with these locks?
Yes. Order the CL3557 keyed alike (KA) and every lock on the order opens with the same key, which is how most property managers set up janitor and supply closets across a floor. Keyed different (KD) is the standard if each room needs its own key. If you already run a Corbin Russwin keyway or a master key system, order the less-core CL6 or CL7 version and have your locksmith install your own cores so the new doors fall straight into the existing hierarchy.
13) I need a matching lever on an inactive or false door leaf next to a Corbin Russwin CL3557. What do I order?
A dummy trim gives you the same lever appearance on a leaf that does not latch. The BEST 9K Series 1DT is a Grade 1 heavy-duty non-keyed single dummy trim cylindrical lever, matching the duty level of the CL3557, which is a Grade 1 heavy-duty lock. The BEST 7KC Series 1DT is a Grade 2 medium-duty single dummy trim lever, and the Accentra 455LN Augusta is a Grade 1 heavy-duty single dummy cylindrical lever lock. Dummy trim has no latch and no cylinder, so it cannot replace the CL3557 on a door that must secure.
14) What should I use instead of the Corbin Russwin CL3557 if I do not want to issue keys to a storeroom?
The CL3557 is a keyed single-cylinder lock that opens with a key in the outside lever and ships with a conventional 6-pin L4 keyway cylinder. For code-based access on the same kind of opening, the Lockey 1150 is a heavy-duty mechanical keypad lever set with double combination for doors 1-1/8 inch to 2 inch, and the Lockey 2835DC is a double combination mechanical keyless lever lock for doors 1 3/16 inch to 2 inch. The Delaney LP250 is a Grade 2 electronic keypad leverlock. These are mechanical or electronic code entry, so there is no key system to integrate with the rest of the building.
15) What lever lock replaces a Corbin Russwin CL3557 on a utility or patient room door that needs a key on both sides?
The CL3557 leaves the inside lever always free, so anyone inside can exit without a key. Where the room must be keyed from both sides, an asylum function is the correct part: the Dexter C1000 is a Grade 1 asylum function lock, ANSI F87, for doors 1-3/8 inch to 2 inch, and the Arrow MK33-BD-CS is a heavy-duty Grade 2 asylum lock with a ball knob and a conventional Schlage C keyway cylinder. Confirm the egress requirements for the opening before specifying either, since neither allows free exit.
16) Are Grade 3 residential leversets an acceptable substitute for the Corbin Russwin CL3557 in an apartment building?
They serve a different duty class. The CL3557 is a heavy-duty Grade 1 commercial lock built on a steel, zinc dichromated substrate. Grade 3 leversets such as the Cal-Royal AUS00 entrance/office lever with a solid brass forged body for doors 1-3/8 inch to 1-3/4 inch, the Kwikset 200BRNL Breton passage lever for the same thickness range, and the Master Lock RL Series keyed entry lever are built for lighter cycle counts. For a common-area storeroom in a multi-family property, the Grade 1 commercial lock is the one that matches the traffic; the Grade 3 sets suit lower-use interior openings.
17) Which lever locks match the Corbin Russwin CL3557 for a lever handle instead of a knob on an ADA opening?
The CL3557 uses a lever handle and is offered with the Armstrong, Newport, and Princeton lever designs. Several comparable commercial locks are also lever operated, including the Hager 2580 storeroom lock with the Withnell lever, the Falcon T101 Grade 1 heavy-duty passage lever, and the Design Hardware X75 Grade 1 passage lever lockset. Where a comparable is knob operated, such as the Arrow MK02-TA with a Tudor knob or the Arrow MK33-BD-CS with a ball knob, it is not a like-for-like swap on an opening where a lever is required.
18) Which lever styles and finishes can I get the Corbin Russwin CL3500 storeroom lock in?
Three lever designs: AZD Armstrong, NZD Newport and PZD Princeton. Fourteen finishes are available, from 626 satin chrome and 625 bright chrome through 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 and 613E and 613L oil-rubbed and dark oxidized bronzes, 618 bright nickel, 619 satin nickel, 722 black oxidized bronze oil-rubbed, plus BSP black suede and WSP white suede powder coat. If you are matching existing openings in a building, 626 satin chrome is the usual commercial standard and the most common configuration is the Newport lever in 626.
How fast can I get the Corbin Russwin CL3557 NZD 626 delivered?
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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 Corbin Russwin CL3557 NZD 626 come with a warranty?
Absolutely. The Corbin Russwin CL3557 NZD 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 Corbin Russwin CL3557 NZD 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 Corbin Russwin CL3557 NZD 626 from ZenSupply?
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