Sargent 11G50-LC T-Zone Grade ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,204.42
$658.79
Sargent 11G50-LC T-Zone Grade 1 Hotel Function Cylindrical Lock Less Cylinder

Sargent 11G50-LC T-Zone Grade 1 Hotel Function Cylindrical Lock Less Cylinder

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Model: 28-11G50-LL-10B-LC
From the 11 Line Series Collection
$1,204.42
$658.79
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,204.42
$658.79
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Sargent T-Zone Grade 1 Hotel Function Cylindrical Lock with 7.6 Million Cycle Rating

Professional Grade 1 Cylindrical Lock for Commercial Hotel Applications

The Sargent T-Zone 11 Line Series Grade 1 Hotel Function Cylindrical Lock delivers exceptional durability and security for commercial hospitality applications. This modular design lock accommodates door thicknesses from 1-3/4" to 2-1/2" with standard 2-3/4" backset and fits standard 161 door preparation. Independently verified to exceed 7.6 million cycles (UL Verification ID: V584148) with T-Zone construction that prevents twisting and maintains secure operation throughout its service life.

Professional Features & Benefits

  • Door Thickness Compatibility: Accommodates 1-3/4" to 2-1/2" door thickness range with standard 2-3/4" backset for versatile installation options.
  • Exceptional Durability: UL Cycle Above and Beyond test completed at 7.6 million cycles (Verification ID: V584148) for proven long-term reliability in high-traffic commercial applications.
  • T-Zone Construction: Torque-resistant design prevents lock twisting and eliminates through bolts or surface screws for enhanced security and proper installation integrity.
  • Modular Design Flexibility: Easy field function changes and integrates with multiple key systems including SARGENT Degree and Signature, SFIC, Schlage, and Medeco LFIC for versatile facility management.
  • Standard Door Compatibility: Fits standard 161 door preparation with non-handed design for simplified installation.
  • Grade 1 Performance: ANSI/BHMA A156.2 Series 4000 Grade 1 certification ensures commercial-grade performance and reliability standards.
  • Fire Safety Compliance: UL-cUL Fire-Rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Manufacturer Warranty: 10-year limited warranty provides long-term protection and confidence in product performance.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness range of 1-3/4" to 2-1/2" and standard 161 door prep compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper alignment.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for the non-handed design.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications, utilizing the T-Zone construction design.
  5. Adjust operational components for proper alignment, latching, and smooth operation with the 1/2" latchbolt throw 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

  • Hotel and Hospitality Properties
  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities

Anti-Microbial Option

Microshield coating available to supplement cleaning protocols for a healthier environment in healthcare, hospitality, and other high-touch applications where enhanced hygiene is essential.

Why Choose Sargent Quality?

Sargent T-Zone 11 Line cylindrical locks deliver professional-grade reliability with torque-resistant T-Zone construction independently verified to exceed 7.6 million cycles. The 10-year limited warranty and Grade 1 certification demonstrate Sargent's commitment to long-term performance. Engineered for demanding commercial applications where dependable security and durability are essential for facility operations.

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:
Hotel
Product Type:
Leversets
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Faculty/Hotel/Restroom
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
11 Line Series
Backset(Direction):
2-3/4"
Door Strike:
ANSI – 4-7/8" Strike, 1-1/4" Lip
Department:
Door Hardware

Sargent 28-11G50-LL-10B-LC – Frequently Asked Questions

1) What does hotel function mean on the Sargent 11G50 lock, and how does it work day to day?
Hotel function is the guest room setup: the outside lever stays locked at all times and is released only by a key, while the inside lever always retracts the latch for free egress. Sargent lists the 11G50 as a Hotel function, single cylinder keyed cylindrical lock with a lever handle. It suits guest rooms, and the same 11 Line family covers faculty and restroom applications.
2) Does the Sargent 11G50-LC come with a cylinder, and which key systems will it take?
LC means less cylinder, so no cylinder or keys ship with it and you supply your own. The 11 Line accepts SARGENT Degree and Signature, SFIC, Schlage, and Medeco LFIC, so it can be brought into an existing master key system rather than forcing a rekey of the property.
3) Will this Sargent 11 Line lock fit a standard 161 prep door, and what door thickness does it handle?
It drops into standard 161 door prep with a 2-3/4 inch backset, and covers door thicknesses from 1-3/4 inches up to 2-1/2 inches. That upper range is wider than most cylindrical locks, so it works on thick fire doors and heavy guest room doors where a typical 1-3/8 to 1-3/4 inch lock will not reach.
4) What strike does the Sargent 11 Line hotel lock use, and will it land in my existing frame cutout?
It ships to the ANSI standard: a 4-7/8 inch strike with a 1-1/4 inch lip, and the latchbolt has a 1/2 inch throw. If the frame is already prepped for ANSI 4-7/8 strike (which most commercial hollow metal frames are), no frame rework is needed. Frames cut for a smaller T-strike will need to be modified.
5) Is the Sargent 11G50 approved for a fire rated guest room door?
Yes. The 11 Line is UL-cUL fire rated up to 3 hours and compliant with NFPA 80, which covers typical 60 and 90 minute guest room and corridor door assemblies.
6) My guest room doors are 2 inches thick. Which cylindrical locks will actually fit?
The Sargent 11 Line covers 1-3/4 to 2-1/2 inches, so 2 inch doors are within range with room to spare. Among other Grade 1 cylindrical levers, the Corbin Russwin CL3110 is listed 1-3/4 to 2 inches and the Falcon K101 1-3/8 to 2-1/4 inches, both of which reach 2 inches but no further. Grade 2 and Grade 3 levers like the Hager 2525 and Kwikset 200BRNL top out at 2 inches or 1-3/4 inches respectively.
7) What Grade 1 cylindrical lever lock works for a classroom door instead of the Sargent 11G50-LC hotel function?
The Sargent 11G50-LC is a hotel function lock, which shuts out the guest key when the inside turn is set. For a classroom opening, the Dexter C1000 series classroom cylindrical lever lock is Grade 1 and fits doors 1-3/8 inch to 1-3/4 inch thick, and the Dexter C1000 classroom security version is also Grade 1 for the same thickness range where the inside also needs key control. Cal-Royal AG03 is a classroom lever with a 6-pin Schlage C keyway and 2-3/4 inch backset, matching the 2-3/4 inch backset of the 11G50-LC.
8) What should I use instead of the Sargent 11G50-LC if the guest room door needs electronic or keypad access?
The Sargent 11G50-LC is a mechanical keyed cylindrical lever lock supplied less cylinder. For coded access on the same style of opening, the Delaney LP250 is a Grade 2 electronic keypad leverlock, the Lockey 1150 is a heavy duty mechanical keypad lever set with double combination for doors 1-1/8 inch to 2 inch thick, and the Emtek Classic keypad leverset is a residential-style option. For electrified access control tied to a card system, the Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever in 12VAC/DC for 1-3/4 inch to 2 inch doors.
9) Do I need to specify handing when ordering the Sargent 11G50?
No. The 11G50 is non-handed, so one part number covers left and right hand openings. That simplifies stocking for a property carrying spares across a building.
10) How durable is the Sargent T-Zone lock for a high traffic hotel corridor?
It is ANSI/BHMA A156.2 Series 4000 Grade 1, heavy duty, and completed UL's Cycle Above and Beyond test at 7.6 million cycles (Verification ID V584148). The T-Zone construction resists torque on the lever, so the chassis will not twist in the door and no through bolts or surface screws are required.
11) We run Schlage keyways across the property. Can we still standardize on Sargent 11 Line locks?
Yes. Because the 11G50-LC ships less cylinder and the 11 Line integrates with Schlage as well as SARGENT Degree and Signature, SFIC, and Medeco LFIC, you can order the chassis and install cylinders on your existing Schlage key system. That keeps one lock platform across guest rooms without changing the master key hierarchy.
12) Which lock should I use for a hotel guest bathroom or public restroom door rather than the Sargent 11G50-LC?
The Sargent 11G50-LC is a keyed single-cylinder hotel function lock for the guest room entry itself. Inside the room, a privacy set is the usual choice: the Hager 2540 is a Grade 2 privacy cylindrical lock with a Withnell lever for doors 1-3/8 inch to 2 inch thick, and the Kwikset 300BRNL Breton is a Grade 3 privacy lever for 1-3/8 inch to 1-3/4 inch doors. For a public toilet or apartment exit function in Yale-prepped hardware, the Accentra 107S is a Grade 1 item in that function group.
13) What is a lower-cost alternative to the Sargent 11G50-LC for a storeroom or office door in the same building?
The Sargent 11G50-LC is a heavy duty Grade 1 hotel function lever. Where the opening only needs a locked-at-all-times storeroom, the Cal-Royal AG05 is a Grade 2 storeroom lever with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors, and the Hager 2580 is a Grade 2 storeroom lever for 1-3/8 inch to 2 inch doors. For entry/office, the Falcon B511CP6D is a Grade 2 medium duty cylindrical lever and the Hager 2525 is a Grade 2 entry lever. Step down in grade only where traffic allows it.
14) Can I use a dummy lever or passage set in place of the Sargent 11G50-LC?
No. The Sargent 11G50-LC is a keyed cylindrical lock with a latchbolt and an ANSI 4-7/8 inch strike with 1-1/4 inch lip. Dummy trims such as the BEST 9K 1DT Grade 1 non-keyed single dummy or the Accentra 455LN Augusta Grade 1 single dummy have no latch at all and are surface-mounted trim only. Passage sets like the Design Hardware X75 Grade 1 flat lever latch but never lock. Neither will hold a guest room door.
15) What lever and rose options does the Sargent 11G50 come in?
Two lever styles, the L lever and the B lever, both on the L rose at 3-1/8 inches, finished in 10BE dark oxidized satin bronze. Pick the lever style that matches the rest of the property's trim, since the rose and finish are common to both.
16) Can I change the function of this Sargent lock later if the room use changes?
The 11 Line uses a modular design that allows field function changes, so a chassis installed as hotel function can be reworked rather than replaced if the opening later needs a different function. There is also a Microshield antimicrobial coating option for high touch healthcare and hospitality doors.
17) For a residential-style opening, what lever set is the alternative to the Sargent 11G50-LC?
The Sargent 11G50-LC is a commercial heavy duty Grade 1 lever built for high-traffic openings. On residential or light-duty interior doors, the Kwikset 200BRNL Breton is a Grade 3 passage lever for 1-3/8 inch to 1-3/4 inch doors, the Callan Artino and Bennett are Grade 3 entrance leversets, and the Deltana 6201 Manchester and 6411 Morant are entry levers for 1-3/8 inch to 2 inch doors. Baldwin Estate 5103 is offered in passage, privacy and half dummy for decorative interiors.
How fast can I get the Sargent 28-11G50-LL-10B-LC 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 28-11G50-LL-10B-LC come with a warranty?
Absolutely. The Sargent 28-11G50-LL-10B-LC 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 28-11G50-LL-10B-LC?
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 28-11G50-LL-10B-LC from ZenSupply?
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