Sargent 11G04 T-Zone Grade 1 S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,035.00
$647.57
SGT-11G04

Sargent 11G04 T-Zone Grade 1 Storeroom/Closet Single Cylinder Cylindrical Lock

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Model: 28-11G04 LB 26D
From the 11 Line Series Collection
$1,035.00
$647.57
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,035.00
$647.57
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Sargent T-Zone 11 Line Grade 1 Storeroom/Closet Cylindrical Lock with 2 3/4" Backset

Professional Grade 1 Cylindrical Lock Solution

The Sargent T-Zone 11 Line Series delivers Grade 1 performance with modular design flexibility for commercial applications. This storeroom/closet function lock features 2 3/4" standard backset, accommodates 1 3/4" to 2 1/2" door thickness, and integrates with multiple key systems including SARGENT Degree and Signature systems. UL cycle testing verified performance at 7.6 million cycles with ANSI/BHMA A156.2 Series 4000 Grade 1 certification for demanding commercial environments.

Professional Features & Benefits

  • Heavy-Duty Durability: UL cycle testing verified at 7.6 million cycles (Verification ID: V584148) for exceptional longevity in high-traffic commercial applications.
  • Door Compatibility: Accommodates door thickness from 1 3/4" to 2 1/2" with standard 2 3/4" backset and fits standard 161 door preparation.
  • Grade 1 Construction: ANSI/BHMA A156.2 Series 4000 Grade 1 certified with torque-resistant T-Zone construction for demanding commercial environments.
  • Modular Design: Field-changeable functions and T-Zone construction prevents lock twisting while eliminating through bolts and surface screws for reliable installation.
  • Universal Key System Integration: Accepts SARGENT key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC for flexible facility management.
  • Fire Safety Compliance: UL-cUL fire-rated up to 3 hours with NFPA 80 compliance and multiple certifications including ASTM E330, E1996, and E1886.
  • Sustainable Design: Made from 68% post-consumer recycled content per LEED MR credit 4 requirements with Environmental Product Declaration (EPD).
  • Manufacturer Warranty: 10-year limited warranty for added confidence and protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness (1 3/4" to 2 1/2"), standard 161 prep, and non-handed installation compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper 2 3/4" backset alignment.
  3. Prepare door by drilling required holes per standard 161 preparation specifications without requiring through bolts or surface screws.
  4. Install T-Zone lockbody and secure all mounting hardware per manufacturer torque specifications to prevent twisting.
  5. Install cylinder component and configure for storeroom/closet function with proper key system integration as specified.
  6. Test lock operation including latchbolt throw, cylinder function, and overall operation to verify proper installation. 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

Why Choose Sargent Quality?

Sargent T-Zone 11 Line cylindrical locks deliver professional-grade reliability with independently-verified cycle testing at 7.6 million cycles and Grade 1 certification for demanding commercial applications. The 10-year limited warranty and sustainable construction with 68% post-consumer recycled content demonstrate Sargent’s commitment to long-term performance and environmental responsibility. Engineered for commercial environments where dependable security and operational longevity are essential.

Product Specs

Series:
11 Line Series
Grade:
Grade 1
Keyed Function:
Single Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Lock Function:
Storeroom/Closet
Product Type:
Leversets
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Storeroom
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
11 Line Series
Department:
Door Hardware

Sargent 28-11G04 LB 26D – Frequently Asked Questions

1) What does the storeroom function on the Sargent 11G04 actually do at the door?
The 11G04 is a storeroom/closet function lock: the outside lever stays locked at all times and is released only by the key, while the inside lever always retracts the latch for free egress. It is a single cylinder lock, so there is no thumbturn or button on the inside to leave it unlocked. That makes it the right pick for mechanical rooms, supply closets, IT rooms and tenant storage where you never want the door left open by accident.
2) Will a Sargent 11 Line lever lock fit a 2 inch thick door?
Yes. The 11 Line T-Zone cylindrical lock covers door thickness from 1-3/4 inches up to 2-1/2 inches, so a 2 inch door is inside the standard range with no thickness kit needed. It drops into standard 161 door prep.
3) Do I have to order the Sargent 11G04 handed for a left or right swinging door?
No handing to specify. The 11 Line lever lock is non-handed, so one part number works on either swing and the levers reverse in the field. You do need to pick the strike lip length to suit your frame and jamb condition.
4) Can I key the Sargent 11G04 into an existing Schlage or small format interchangeable core system?
Yes, within limits. Cylinder choices are a 6 pin standard cylinder, 60 Sargent large format interchangeable (FSIC), 70 Sargent small format interchangeable (SFIC), or the 30 prep for a Schlage key-in-lever cylinder supplied less core. If your facility is already standardized on Schlage cores, order the 30 option and install your own core. The lock also accepts SARGENT Degree and Signature key systems, plus SFIC and Schlage and Medeco LFIC.
5) Can I put the Sargent 11G04 on a fire rated stair or corridor door?
Yes. The 11 Line is UL-cUL fire rated up to 3 hours with NFPA 80 compliance, and the storeroom function keeps the outside locked while the inside lever always allows egress, which is what a rated egress opening needs.
6) What has to be specified when ordering a Sargent 11G04 so the order is complete?
Five choices are required on the order: backset, strike, cylinder, keying and keyway. Strike options are the ANSI 4-7/8 inch strike in 1-1/8, 1-1/4 or 1-3/8 inch lip length, or a T strike with 1-1/4 inch lip. Keying is standard, keyed different, keyed alike or master keyed, and the keyway list runs from LA standard through the C, H, L and R families plus R, S and U. On top of that you pick the lever (B, J, L or P), the rose (B or O at 2-3/4 inch, L at 3-1/8 inch, E at 3-1/2 inch) and the finish.
7) Will the Sargent 11G04 work on a 1-3/8 inch interior door?
No. The 11 Line starts at 1-3/4 inches, which is the standard commercial door thickness, and runs to 2-1/2 inches. For a 1-3/8 inch leaf, look at a lock rated down that far, such as the Dexter C1000 Grade 1 cylindrical locks (1-3/8 to 1-3/4 inches) or the Falcon K101 (1-3/8 to 2-1/4 inches).
8) Is there a Grade 2 storeroom lever lock that can be used instead of the Sargent 11G04?
Yes. The Cal-Royal AG05 is a Grade 2 storeroom leverset with a deadlocking latchbolt and a door thickness range of 1-3/8 inch to 1-3/4 inch, and the Hager 2580 is a Grade 2 storeroom cylindrical lock with the Withnell lever and a 1-3/8 inch to 2 inch door thickness range. The Sargent 11G04 is a Grade 1 storeroom/closet cylindrical lever lock accepting doors 1-3/4 inch to 2-1/2 inch thick, so on a thicker door or a heavier-traffic opening the 11G04 is the one that still fits and carries the Grade 1 rating.
9) I need a non-keyed lever for a closet that does not need to lock. What is the equivalent?
Go to a passage function instead of the keyed 11G04. Grade 1 passage options include the Falcon K101, a Grade 1 heavy duty passage cylindrical lock with non-handed levers and a 1-3/8 inch to 2-1/4 inch door thickness range, the Falcon T101 Grade 1 heavy duty passage lever, the Corbin Russwin CL3110 Grade 1 vandal resistant passage/closet lever for doors 1-3/4 inch to 2 inch, and the Dexter C1000 passage lever, Grade 1 with a clutching non-keyed lever. The Sargent 11G04 is keyed with a single cylinder.
10) We key everything to Schlage C. Does the Sargent 11G04 work, or do I need a different brand?
The Sargent 11G04 can be ordered with a 30 - Schlage Key-in-Lever Cylinder Prep, Less Core, and it also accepts Sargent large format interchangeable, Sargent small format interchangeable, and 6-pin standard cylinders, so a Schlage-keyed facility can stay on the 11G04. If you would rather buy the lock already keyed, the Cal-Royal AG05 Grade 2 storeroom lever and the Cal-Royal AG03 classroom lever are supplied with 6-pin Schlage C keyways keyed different. Accentra hardware takes the Accentra 107S Schlage cylinder adapter kit for that conversion.
11) Is a Sargent 11 Line lock worth it over a Grade 2 storeroom lever for a high traffic opening?
For heavy traffic, yes. The 11 Line is ANSI/BHMA A156.2 Series 4000 Grade 1 with UL cycle testing verified at 7.6 million cycles, and the T-Zone construction resists twisting without through bolts or surface screws. If the opening is light duty, a Grade 2 storeroom lever such as the Cal-Royal AG05 or the Hager 2580 with Withnell lever covers the same function at a lower duty rating.
12) I need the same lever look on doors that do not need to lock. What matches the Sargent 11G04?
Within a Grade 1 cylindrical family, the non-keyed counterparts are passage and dummy trim. Comparable Grade 1 options we carry include the Corbin Russwin CL3110 passage/closet, the Falcon K101 passage, and the BEST 9K Series 1DT single dummy trim. Those will not match Sargent lever and rose styling exactly, so if appearance across the floor matters, stay within the Sargent 11 Line and order the same lever (B, J, L or P), rose and finish in a passage function.
13) Does the Sargent 11 Line need through bolts, and will it loosen up on an abused door?
No through bolts and no surface screws. The T-Zone construction anchors the lock against twisting in the bore, which is the usual failure mode on cylindrical locks that get leaned on and wrenched. Installation follows standard 161 prep with the manufacturer template, and functions are field changeable if the opening's use changes later.
14) Will a dummy lever work as a cheaper version of the Sargent 11G04?
No. A dummy lever has no latch and no cylinder; it is pull trim only. The BEST 9K Series 1DT is a Grade 1 non-keyed heavy duty single dummy trim lever, the BEST 7KC Series 1DT is the Grade 2 medium duty dummy, and the Accentra 455LN Augusta is a Grade 1 single dummy from the 5400 Series. None of them secure an opening. The Sargent 11G04 is a keyed storeroom/closet lock with a latchbolt, so a dummy is only a match on an inactive leaf.
15) What do I use if the opening needs an electrified lever instead of a mechanical storeroom lock?
The Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever for doors 1-3/4 inch to 2 inch thick, offered as a 12VAC/DC keyed version and as a 12AC/DC unit with the NZ lever and D rose. It needs power run to the opening. The Sargent 11G04 is a mechanical storeroom/closet lock with no electrical requirement, keyed with a single cylinder.
16) Can I use a residential-grade lever on a commercial storeroom door?
Grade 3 levers are built for residential service. The Kwikset 200BRNL Breton passage lever and 300BRNL Breton privacy lever are Grade 3 for doors 1-3/8 inch to 1-3/4 inch, the Cal-Royal AUS00 entrance/office lever is Grade 3, and the Callan Artino and Asheville leversets are Grade 3 entrance and passage sets. The Sargent 11G04 is a Grade 1 heavy duty commercial lock, ANSI/BHMA A156.2 Series 4000 Grade 1 certified and UL cycle tested at 7.6 million cycles, which is the specification a commercial storeroom schedule normally calls out.
17) What is the difference between the Sargent 11G04 and a keypad lever set for a stockroom?
A keypad set replaces the key with a code. The Lockey 1150 is a heavy duty mechanical keypad lever set with double combination in passage function, fitting doors 1-1/8 inch to 2 inch thick, and the Delaney LP250 is a Grade 2 electronic keypad leverlock. The Sargent 11G04 is a keyed Grade 1 storeroom/closet lock with a single cylinder, which is what you want if the stockroom has to fall under an existing master key system.
18) Which lock should I use on a patient room or detention-type door rather than a storeroom lock?
Those openings usually call for an asylum or institutional function, keyed on both sides with no free egress lever. The Dexter C1000 asylum (F87) is Grade 1 for doors 1-3/8 inch to 2 inch thick, and the Arrow MK33-BD-CS is a Grade 2 asylum lock with a ball knob and a conventional cylinder in the Schlage C keyway. The Sargent 11G04 is storeroom/closet function with a lever handle.
19) Does the Sargent 11 Line contribute to LEED on a green building project?
It does. The 11 Line is made from 68 percent post-consumer recycled content per LEED MR credit 4 and has a published Environmental Product Declaration, so it can be documented in a materials submittal.
20) What finishes does the Sargent 11G04 come in for matching existing building hardware?
Fourteen finishes are offered: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized satin bronze, 10BE, 10BL, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze lacquered, 26 bright chrome, 26D satin chrome, plus BSP black suede and WSP white suede powder coat. 26D is the usual commercial standard for matching existing closers, hinges and exit devices.
21) Is the Corbin Russwin CL3300 lock lever a substitute for the Sargent 11G04?
No. The Corbin Russwin 585F715 is a Grade 1 lock lever for the ED8000 pushpad exit device and the CL3300 cylindrical lock series, rated for doors 1-3/4 inch to 2 inch, so it is trim that mounts to an existing device or lock body. The Sargent 11G04 is a complete cylindrical storeroom/closet lock with latch, strike, and cylinder selected at order.
How fast can I get the Sargent 28-11G04 LB 26D 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 Sargent 28-11G04 LB 26D come with a warranty?
Absolutely. The Sargent 28-11G04 LB 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 28-11G04 LB 26D?
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