Sargent 6G04 Grade 2 Storeroom...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$293.00
$176.66

Sargent 6G04 Grade 2 Storeroom/Closet Knob Lock with Single Cylinder

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Model: 28LC-6G04 OB 26D
$293.00
$176.66
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$293.00
$176.66
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Sargent 6 Line Series Grade 2 Storeroom/Closet Knob Lock with 2 3/8" Backset

Professional Standard Duty Cylindrical Lock Solution

The Sargent 6 Line Series delivers reliable Grade 2 performance for commercial storeroom and closet applications. This standard duty knob lock features ANSI/BHMA Grade 2 certification with 2 3/8" standard backset and accommodates door thickness from 1 3/8" to 1 3/4". UL-cUL fire-rated up to 3 hours with non-handed design for versatile installation.

Professional Features & Benefits

  • Door Compatibility: Standard 2 3/8" backset with adjustable range to 2 3/4" accommodates door thickness from 1 3/8" to 1 3/4" for versatile installation options.
  • Grade 2 Durability: ANSI/BHMA A156.2 Series 4000 Grade 2 certification ensures reliable performance for standard duty commercial applications.
  • Fire Safety Compliance: UL-cUL fire-rated up to 3 hours provides essential life safety protection for commercial building applications.
  • Easy Installation: Two lockbody screw design simplifies installation and maintenance procedures for reduced labor costs.
  • Versatile Configuration: Multiple latch and strike options with broad spectrum of functions and trim combinations for customized applications.
  • Anti-Microbial Option: Available with optional MicroShield® antimicrobial coating for enhanced hygiene in healthcare and food service environments.
  • Non-Handed Design: Universal handing eliminates field configuration requirements and reduces inventory complexity.
  • Manufacturer Warranty: 1-year limited warranty provides confidence and protection for commercial installations.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. 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

Anti-Microbial Option

Optional MicroShield® antimicrobial coating available for enhanced hygiene protection in healthcare facilities, food service areas, and other environments where microbial control is essential for occupant safety and health.

Why Choose Sargent Quality?

Sargent 6 Line Series knob locks deliver professional-grade reliability with Grade 2 certification and UL-cUL fire rating up to 3 hours for demanding commercial applications. The two lockbody screw installation design and multiple configuration options provide versatile solutions for diverse building requirements. Engineered for demanding commercial applications where dependable performance and code compliance are essential.

Product Specs

Series:
6 Line Series
Grade:
Grade 2
Keyed Function:
Single Cylinder
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Handle Type:
Knob
Lock Function:
Storeroom/Closet
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Knobsets
Duty Level:
Standard Duty
Product Attribute:
Cylindrical Locks
Product Function:
Storeroom
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent 28LC-6G04 OB 26D – Frequently Asked Questions

1) How does the Sargent 6G04 storeroom function actually work on a supply closet door?
Storeroom/closet function means the outside knob is always locked. Entry from the outside is by key only, and the inside knob always retracts the latch for free egress. There is no button or thumbturn to leave it unlocked, which is why it suits janitor closets, IT rooms, and stock rooms where the door must never be left open. It is a single cylinder lock, so the key works from the outside only.
2) Will the Sargent 6G04 knob lock fit a 1-3/4 inch commercial door?
Yes. The 6 Line bored lock covers door thicknesses from 1-3/8 to 1-3/4 inches, so standard 1-3/4 inch commercial doors and older 1-3/8 inch interior doors both work with no extra kit.
3) Can the Sargent 6G04 go on a fire-rated storeroom door?
Yes. The 6 Line bored lock is UL-cUL fire rated up to 3 hours, so it can go on labeled openings including stair and corridor storerooms. The storeroom function also keeps the inside knob free at all times, which is what egress requires on a rated door.
4) Should I order the 6G04 less cylinder if we key our own locks?
Yes, take the LC (Less Cylinder) option. It ships the lock without a cylinder so a locksmith can drop in the cylinder that matches the building's existing system. If you want it keyed from the factory instead, take the standard 6-pin cylinder version and specify the keying.
5) Can I get these Sargent storeroom knobs keyed alike or on our master key system?
Keying is a required selection: keyed different, keyed alike, master keyed, or standard keying. Keyway choice is broad, with LA as standard plus the CA through CR, HA through HK, LB through LL, R, RA through RL, S and U keyways, so the lock can be cut into an existing Sargent system. If you are supplying your own cylinders, choose the less cylinder version and no keyway.
6) What is a heavier-duty alternative to the Sargent 6G04 storeroom knob lock for a high-traffic opening?
The Sargent 6G04 is a Grade 2 standard duty knob lock. If the opening needs Grade 1 heavy duty, the BEST 8K Series knob lock is Grade 1 heavy duty in an entrance function with a single cylinder, and the Falcon X101 is a Grade 1 heavy duty cylindrical knobset in passage function with an interchangeable core and a 1-3/8 inch to 2-1/4 inch door thickness range. Note the function change: neither is storeroom, so if the door must stay locked at all times with key-only entry, keep the 6G04 function and verify grade requirements against the spec.
7) What is the closest Grade 2 commercial keyed knob lock to the Sargent 6G04 from another brand?
For a Grade 2 keyed cylindrical knob lock in the same class, the Dexter C2000 entry/office ball knob is Grade 2, keyed, with a 1-3/8 inch to 1-3/4 inch door thickness range, and the Corbin Russwin CK4851 is a Grade 2 entrance/office cylindrical lock with a Global knob and a conventional cylinder over a 1-3/8 inch to 2 inch door range. Both are entrance/office function, which unlocks the outside knob when the inside button is set; the Sargent 6G04 is storeroom/closet, where the outside knob stays locked at all times and entry is by key only.
8) Can I use a residential Kwikset or Grade 3 knob lock in place of the Sargent 6G04?
They are different classes of hardware. The Sargent 6G04 is a commercial Grade 2 knob lock with UL-cUL fire rating up to 3 hours and Sargent keyway options for master keying. The Kwikset 400P-CP keyed entry knob is Grade 3 for 1-3/8 inch to 1-3/4 inch doors, the Cal-Royal BER00 entrance/office knob is Grade 3 with a Kwikset keyway, and the Pamex FTF Baron is Grade 3 entrance/office. Those suit light residential use and Kwikset-keyed systems; a commercial storeroom opening under a fire-rated or master-keyed spec calls for the 6G04.
9) Is this Sargent knob lock handed, or can I use one part number on both left and right doors?
Non-handed. One 6G04 works on left or right hand doors with no field reversal, which is what lets a property manager or MRO stockroom carry a single part number for every storeroom opening in the building.
10) What does Grade 2 mean here, and is it enough for a school or hospital storeroom?
The 6 Line carries ANSI/BHMA A156.2 Series 4000 Grade 2 certification and is rated standard duty commercial. That is the right level for storerooms, closets, and offices with moderate traffic. For a high-abuse opening, a main entry, or heavy student traffic, step up to a Grade 1 cylindrical lock such as the BEST 8K Series or the Falcon X Series.
11) What finishes does the Sargent 6G04 knob lock come in, and will they match existing hardware?
Three finishes: 03 bright brass with clear coat, 10BE dark oxidized satin bronze, and 26D satin chrome over nickel. 26D is the usual match for commercial buildings running satin chrome or brushed stainless trim, 03 for polished brass openings, and 10BE for dark bronze schemes. All three are available with either the 6-pin cylinder or the less cylinder configuration.
12) Is the Sargent 6G04 a classroom lock?
No. Storeroom function keeps the outside knob permanently locked and does not let a teacher unlock the outside knob with a key and leave it in passage. For that behavior order a classroom function lock, such as the Dexter C2000 Grade 2 classroom knob lock, which covers 1-3/8 to 1-3/4 inch doors.
13) The door is a classroom, not a storeroom - should I still order the Sargent 6G04?
No. The Sargent 6G04 is storeroom/closet function, where the outside knob is always locked and the latch retracts by key or by the inside knob. A classroom opening needs the outside knob to be locked and unlocked by key from the outside; the Dexter C2000 classroom ball knob is a Grade 2 keyed classroom function for 1-3/8 inch to 1-3/4 inch doors. Match the function code on the door schedule before ordering.
14) My door is thicker than 1-3/4 inches - what knob lock should I use instead of the Sargent 6G04?
The Sargent 6G04 covers doors from 1-3/8 inch to 1-3/4 inch. For a thicker leaf, the Corbin Russwin CK4310 Grade 1 passage/closet knob and the CK4851 entrance/office knob both cover 1-3/8 inch to 2 inch doors, and the Falcon X101 Grade 1 passage knobset covers 1-3/8 inch to 2-1/4 inch. Those are passage and entrance/office functions rather than storeroom, so confirm the function your opening requires.
15) What should I use for the bathroom and dummy doors on the same job as the Sargent 6G04 storeroom locks?
The Sargent 6G04 is a keyed storeroom knob lock and is not a privacy or dummy set. For restrooms, the Dexter C2000 privacy ball knob is a Grade 2 non-keyed privacy function for 1-3/8 inch to 1-3/4 inch doors, and the Cal-Royal BER20 is a Grade 3 privacy knob with brass trim. For inactive leaves, the Schlage A170 is a Grade 2 heavy duty single dummy trim for 1-3/8 inch to 1-7/8 inch doors and the BEST 6K single dummy trim is Grade 2 medium duty.
16) Is the Imperial USA ED-BKL580 storeroom knob trim a substitute for the Sargent 6G04?
No. The Imperial USA ED-BKL580 is knob trim in storeroom function for the ED-500 exit device series, so it mounts to an exit device rather than standing alone. The Sargent 6G04 is a complete Grade 2 cylindrical knob lock with its own latch, strike, and single cylinder for a bored door prep. The two share a function name but not an application.
17) I want keyless access on a storeroom door instead of carrying a key for the Sargent 6G04 - what is the option?
The Sargent 6G04 is a keyed single-cylinder knob lock operated by a Sargent keyway cylinder. If you would rather use a code, the Lockey 3830 is a mechanical keyless combination knob lock with auto-locking passage function for doors from 1 3/16 inch to 2 inch thick. It needs no key and no power, but it is not fire rated in the way the 6G04 is, so it is not a swap on a labeled fire door.
18) Is there an antimicrobial version of this Sargent knob for a healthcare corridor?
Yes, the 6 Line is offered with optional MicroShield antimicrobial coating, aimed at healthcare, food service, and other areas where surface hygiene matters. It is an option on the lock, not a separate series, so the storeroom function, fire rating, and backset choices stay the same.
19) How many screws hold the Sargent 6 Line lock body in, and is service easy?
Two lockbody screws secure the chassis, which keeps installation and later service short. Sargent also publishes 6 Line bored lock installation instructions covering cylinder reassembly, plus a 6 Line parts list for ordering replacement components rather than a whole lock.
20) For a decorative interior opening, what knob is used instead of the Sargent 6G04?
The Sargent 6G04 is a commercial storeroom knob lock. Decorative interior openings are usually handled with solid brass trim sets such as the Omnia 434/PA egg-shaped knob latchset in passage function, the Baldwin Estate 5011 Colonial passage knob with 5058 rose, or the Deltana 6171 Round Knob entry set for 1-3/8 inch to 2 inch doors. Those are chosen for appearance on residential and light-commercial doors; the 6G04 is the choice where a Grade 2 commercial keyed storeroom function is specified.
How fast can I get the Sargent 28LC-6G04 OB 26D delivered?
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Can I return it if it doesn’t work for me?
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Does the Sargent 28LC-6G04 OB 26D come with a warranty?
Absolutely. The Sargent 28LC-6G04 OB 26D 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 Sargent 28LC-6G04 OB 26D?
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