Sargent 11U15 T-Zone Grade 1 P...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$770.00
$490.27
SGT-11U15

Sargent 11U15 T-Zone Grade 1 Passage Cylindrical Lock with Modular Design

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Model: 28-11U15 LB 26D
From the 11 Line Series Collection
$770.00
$490.27
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$770.00
$490.27
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Sargent T-Zone Grade 1 Passage Cylindrical Lock with Modular Design and 7.6 Million Cycle Rating

Professional Grade 1 Cylindrical Lock Solution

The Sargent T-Zone 11 Line Series Grade 1 Passage Cylindrical Lock delivers commercial-grade security with modular design flexibility. This non-keyed passage function lock features standard 161 door prep compatibility, fits door thickness from 1-3/4" to 2-1/2", and includes 2-3/4" standard backset with adjustability up to 5". UL cycle testing verified performance at 7.6 million cycles, while ANSI/BHMA A156.2 Series 4000 Grade 1 certification ensures professional reliability.

Professional Features & Benefits

  • Ultra-High Cycle Rating: Independently verified at 7.6 million cycles (Verification ID: V584148) for exceptional durability in high-traffic commercial applications.
  • Door Compatibility: Fits door thickness from 1-3/4" to 2-1/2" with standard 161 door prep for universal installation flexibility.
  • Adjustable Backset: 2-3/4" standard backset adjustable up to 5" maximum for various door configurations and retrofit applications.
  • Modular Field-Changeable Design: Easy function changes in the field with one lockbody supporting multiple functions, simplifying facility maintenance and reducing inventory requirements.
  • Universal Key System Integration: Accepts SARGENT key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC for maximum compatibility.
  • T-Zone Torque-Resistant Construction: Prevents lock twisting and eliminates through bolts or surface screws for superior installation integrity and tamper resistance.
  • ANSI/BHMA Grade 1 Certification: ANSI/BHMA A156.2 Series 4000 Grade 1 rating ensures professional-grade performance and code compliance.
  • Fire Rating Compliance: UL-cUL Fire-Rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Sustainable Construction: Made from 68% post-consumer recycled content meeting LEED MR credit 4 requirements for green building projects.
  • Manufacturer Warranty: 10-year limited warranty provides long-term protection and confidence in 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 (1-3/4" to 2-1/2"), standard 161 prep, and backset requirements (2-3/4" standard, adjustable to 5" maximum).
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper alignment.
  3. Prepare door by drilling required holes per standard 161 preparation specifications and route as needed for latchbolt and strike installation.
  4. Install lockbody, latchbolt assembly, and T-Strike curved lip strike using manufacturer torque specifications for secure mounting.
  5. Adjust latchbolt throw (1/2") and 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

Sustainable Design Features

The T-Zone 11 Line Series incorporates 68% post-consumer recycled content meeting LEED MR credit 4 requirements for sustainable building projects. The ultra-high 7.6 million cycle rating reduces lock replacements over facility lifetime, contributing to reduced waste and lower environmental impact while supporting green building initiatives.

Why Choose Sargent Quality?

Sargent T-Zone cylindrical locks deliver professional-grade reliability with independently verified 7.6 million cycle performance and Grade 1 ANSI/BHMA certification. The torque-resistant T-Zone construction and modular design provide exceptional durability for demanding commercial applications. 10-year limited warranty ensures long-term protection and confidence in high-traffic installations where dependable performance is essential.

Product Specs

Series:
11 Line Series
Grade:
Grade 1
Keyed Function:
Non-Keyed
ANSI/BHMA:
F75
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Leversets
Subcategory:
Bored Locksets
Keyed:
No
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Lock Function:
Passage
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Passage/Hall/Closet
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
11 Line Series
Department:
Door Hardware

Sargent 28-11U15 LB 26D – Frequently Asked Questions

1) Is the Sargent 11U15 handed? I have doors swinging both ways in the same building.
Non-handed. One 11U15 works on a left or right hand door, so a property manager or maintenance shop can stock a single part number for every opening instead of splitting inventory by swing.
2) Can I use the Sargent 11U15 on a fire-rated door?
Yes. The 11 Line is UL-cUL fire rated up to 3 hours and NFPA 80 compliant. As a passage function it is non-keyed and always free to operate from both sides, which is what you want on a corridor or stair-side fire door where the leaf has to latch but never lock.
3) What exactly does the passage function on the Sargent 11U15 do? Can it ever be locked?
No locking at all. Passage (ANSI F75) means both levers retract the latch at all times, with no cylinder, no key and no inside pushbutton or turn. It is a latching set for hall, closet and corridor doors where you want the door to stay shut but never secured. If you need to keep people out, you want a storeroom, entry or classroom function instead.
4) Which strike should I order with the Sargent 11U15 to match my existing frame?
Strike is a required selection, and there are four. Three are ANSI 4-7/8 inch strikes differing only in lip length (1-1/8, 1-1/4 and 1-3/8 inch), which is what you pick on a hollow metal frame already cut for ANSI prep. The fourth is the T-Strike with a 1-1/4 inch curved lip, used where the frame is not ANSI prepped. Choose lip length so the lip clears the casing or stop and guides the 1/2 inch latchbolt in cleanly.
5) Which passage lever should I use if the door is 1-3/8 inch thick?
The Sargent 11U15 starts at 1-3/4 inch and runs to 2-1/2 inch. For a 1-3/8 inch door, the Falcon K101 Grade 1 passage lever covers 1-3/8 inch to 2-1/4 inch, the Dexter C1000 passage covers 1-3/8 inch to 1-3/4 inch at Grade 1, and the Hager 2510 Grade 2 passage covers 1-3/8 inch to 2 inch. The Kwikset 200BRNL Breton passage is a Grade 3 residential option for 1-3/8 inch to 1-3/4 inch doors.
6) What is the closest Grade 1 passage lever lock to the Sargent 11U15 from another manufacturer?
The Falcon K101 is the nearest straight equivalent. Both are non-keyed Grade 1 heavy duty cylindrical passage lever locks; the K101 is listed fire rated with a door thickness range of 1-3/8 inch to 2-1/4 inch, while the Sargent 11U15 covers 1-3/4 inch to 2-1/2 inch doors with a 2-3/4 inch backset adjustable to 5 inch. The Corbin Russwin CL3110 is another Grade 1 passage cylindrical lever, fire rated, for 1-3/4 inch to 2 inch doors. If the opening is thicker than 2-1/4 inch, the 11U15 is the one that still fits.
7) I need a locking function on the same door prep - what do I order instead of the Sargent 11U15?
The 11U15 is passage only and non-keyed, so it never locks. For a keyed opening, the Dexter C1000 Series is offered in classroom, classroom security and asylum functions at Grade 1, and Corbin Russwin lists the CL33903 Grade 1 electrified fail safe lever for access control openings. In Grade 2, Hager offers the 2580 storeroom and 2525 entrance levers and Cal-Royal the AG05 storeroom. Pick the function first, then match backset and strike.
8) Is the Sargent 11U15 durable enough for a high-traffic school or hospital corridor?
That is the application it is built for. It is a heavy duty commercial lock carrying ANSI/BHMA A156.2 Series 4000 Grade 1 certification, with UL cycle testing verified at 7.6 million cycles. The T-Zone construction resists twisting of the lock in the door, which is the usual failure mode on abused corridor openings.
9) If I buy the 11U15 as a passage set now, can I change it to a locking function later?
Yes, that is the point of the 11 Line modular design. One lockbody supports multiple functions and the function can be changed in the field, so a facility can carry fewer lock bodies and convert an opening from passage to a locking function without pulling and replacing the whole set.
10) What lever styles, roses and finishes does the Sargent 11U15 come in so I can match the rest of the building?
Four lever designs (B, J, L and P) and four rose options: B and O at 2-3/4 inch, L at 3-1/8 inch and E at 3-1/2 inch. The larger E rose is the one to use when you need to cover scarring from previous trim. Finishes run to fourteen, including 26D satin chrome, 10B oil rubbed bronze, 15 satin nickel, 04 satin brass, 20D dark statuary bronze, plus BSP black and WSP white suede powder coat for a painted look.
11) Do I really need a Grade 1 passage lock, or is a Grade 2 lever enough for interior office doors?
On low-traffic interior or tenant doors a Grade 2 passage set such as the Accentra 5301LN Augusta, the Falcon B101 or the Hager 2510 will do the job at a lighter duty level. Go to the Sargent 11U15 where the opening is fire rated, high cycle, or abused: it is Grade 1 heavy duty, tested to 7.6 million cycles, and fits doors up to 2-1/2 inches, which the Grade 2 sets generally do not.
12) I only need a lever on one side that does not turn. Is the 11U15 the right part?
No. The 11U15 is an operating passage set, both levers retract the latch. For a non-functioning lever on a closet or inactive leaf you want a dummy trim, such as the BEST 9K Series 1DT Grade 1 single dummy or the Grade 2 BEST 7KC 1DT. A dummy has no latch, so you will also need a separate catch or ball catch to hold the door closed.
13) Can I use a dummy lever in place of the Sargent 11U15?
Only where the door does not need to latch. The 11U15 is a passage lock with a working latchbolt that retracts when the lever is turned. A dummy such as the BEST 9K Series 1DT Grade 1 single dummy trim, the Accentra 455LN Augusta Grade 1 single dummy, or the BEST 7KC Grade 2 single dummy trim is fixed trim with no latch at all, used on inactive leaves and pull-side-only applications. If the door has to stay closed, order the 11U15.
14) Does a privacy lever work as a substitute for the Sargent 11U15 on a restroom door?
No, they are different functions. The 11U15 is passage only with no locking at all. For a restroom you want a privacy function such as the Hager 2540 Withnell privacy lever, the Baldwin Estate 5103 privacy lever, or the Kwikset 300BRNL Breton privacy lever. The 11U15 belongs on halls, closets and corridor doors that only need latching.
15) Does the Sargent 11U15 contribute to LEED on a green building project?
The 11 Line is made from 68 percent post-consumer recycled content, which meets LEED MR credit 4 requirements. For a sustainability-focused spec, that plus the 7.6 million cycle life is the documentation an architect or owner usually asks for.
16) For a decorative residential-look passage lever instead of the Sargent 11U15, what are the options?
The Baldwin Estate 5103 passage lever with 5048 rose is a decorative brass passage set, and Bravura offers passage leversets in the Atlanta, Orlando and Miramar round trim styles and the Tampa square trim style at Grade 2. Callan lists the Asheville Grade 3 passage lever in satin nickel. The Sargent 11U15 is a commercial Grade 1 heavy duty lever and is the choice where cycle life and code compliance drive the spec.
How fast can I get the Sargent 28-11U15 LB 26D 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 Sargent 28-11U15 LB 26D come with a warranty?
Absolutely. The Sargent 28-11U15 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 28-11U15 LB 26D?
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 Sargent 28-11U15 LB 26D from ZenSupply?
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