Sargent 11G50 T-Zone Grade 1 H...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,162.00
$647.57
SGT-11G50

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

(No reviews yet) Write a Review

Model: 28-11G50 LB 26D
From the 11 Line Series Collection
$1,162.00
$647.57
Selected Finish is
Selected Lever is
Selected Roses is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,162.00
$647.57
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

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 Hotel Function Single Cylinder Cylindrical Lock delivers Grade 1 performance with modular design flexibility for commercial hospitality applications. This lock accommodates door thickness from 1-3/4" to 2-1/2" with standard 2-3/4" backset and features T-Zone construction that prevents lock twisting. UL cycle testing verified performance at 7.6 million cycles (Verification ID: V584148), and the lock integrates with multiple key systems including SARGENT Degree and Signature systems.

Professional Features & Benefits

  • Door Thickness Compatibility: Accommodates door thickness from 1-3/4" to 2-1/2" with backset options from 2-3/4" to 5" maximum for versatile installation requirements.
  • Exceptional Durability: UL cycle testing completed at 7.6 million cycles (Verification ID: V584148) for lifetime facility performance and reliability.
  • T-Zone Construction: Torque-resistant design prevents lock twisting and eliminates through bolts or surface screws for enhanced security and durability.
  • Universal Key System Integration: Accepts SARGENT key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC for existing facility compatibility.
  • Grade 1 Certified Performance: ANSI/BHMA A156.2 Series 4000 Grade 1 certification with UL-cUL fire rating up to 3 hours for demanding commercial applications.
  • Modular Field Service: Easy function changes in the field with simple cylinder removal and one lockbody design for multiple functions, reducing maintenance complexity.
  • Sustainable Construction: Made from 68% post-consumer recycled content per LEED MR credit 4 requirements for green building compliance.
  • Comprehensive 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 from 1-3/4" to 2-1/2", standard 161 door prep, and non-handed installation compatibility.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper backset alignment.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for T-Zone construction.
  4. Install all mounting hardware and secure the cylindrical lock to door per manufacturer torque specifications, ensuring T-Zone alignment prevents twisting.
  5. Install cylinder component and configure for hotel function operation with proper key system integration as specified.
  6. Test lock operation to verify proper function including latchbolt throw of 1/2" and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Hotel and Hospitality Guest Rooms
  • Commercial Office Buildings
  • Educational Facility Dormitories
  • Healthcare Institution Patient Rooms
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings
  • Industrial Facility Administrative Areas

Microshield Anti-Microbial Option

Microshield coating available as an option to supplement cleaning protocols for healthier environments in healthcare, hospitality, and high-traffic commercial applications where enhanced hygiene protection is beneficial.

Why Choose Sargent Quality?

Sargent T-Zone cylindrical locks deliver professional-grade reliability with T-Zone construction and independently verified 7.6 million cycle performance for demanding commercial applications. The 10-year limited warranty and Grade 1 certification ensure long-term dependability, while the modular design and universal key system compatibility reduce maintenance complexity and total cost of ownership. Engineered with 68% post-consumer recycled content and comprehensive certifications including UL fire rating up to 3 hours for facilities where security and sustainability 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:
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
Department:
Door Hardware

Sargent 28-11G50 LB 26D – Frequently Asked Questions

1) What does the hotel function on the Sargent 11G50 actually do at the door?
The 11G50 is Sargent's hotel function in the 11 Line cylindrical family: a keyed single-cylinder lockset with a lever, used on guest room doors where the outside lever stays locked and entry is by key. It's the same function group Sargent lists as Faculty/Hotel/Restroom, so it also gets specified on dorm rooms, patient rooms and multi-tenant residential doors where occupants control access.
2) Is the Sargent 11G50 approved for a fire rated guest room door?
Fire rated, and UL-cUL rated up to 3 hours. It also carries ANSI/BHMA A156.2 Series 4000 Grade 1 certification, which is the top commercial grade for bored locksets. That combination is what an institutional spec on a rated corridor or guest room door normally calls for.
3) Do I have to specify handing for the Sargent 11 Line hotel lock?
No handing to call out. The 11G50 is non-handed, so one part number works on a left or right hand door. That matters for a hotel or dorm with mixed swings: you can stock one lock rather than two.
4) Will the Sargent 11G50 latch into the strike already in my frame?
Depends which strike is in the frame. The lock ships with a strike you select, and four choices are offered: 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. If your frames are prepped for the standard ANSI 4-7/8 strike, order that and match the lip length to how far the frame stop sits off the door face. The latchbolt throws 1/2 inch.
5) What is the closest Grade 1 cylindrical lever lock to the Sargent 11G50 for a storeroom or classroom door instead of a hotel door?
The Sargent 11G50 is a Grade 1 cylindrical lever lock in the hotel function, which is specific to guest room doors. For a classroom opening at the same Grade 1 level, the Dexter C1000 Series classroom cylindrical lever lock is a keyed clutching lever lock covering doors 1-3/8 inch to 1-3/4 inch thick, and the Dexter C1000 classroom security version adds a second keyed side. If the requirement is a storeroom function, the Cal-Royal AG05 is a Grade 2 storeroom lever lockset with a deadlocking latchbolt for doors 1-3/8 inch to 1-3/4 inch thick. Both differ from the 11G50 in function and in door thickness range, since the Sargent covers 1-3/4 inch to 2-1/2 inch.
6) Can a Grade 2 entrance lever be used in place of the Sargent 11G50 on hotel guest rooms?
An entrance or entry/office lever is a different function from the 11G50 hotel function, which locks the outside lever and can be overridden only by the guest key or a higher-level key. Grade 2 entrance levers such as the Hager 2525 for doors 1-3/8 inch to 2 inch, the Falcon B511CP6D entry/office lever, and the Cal-Royal AG00 entrance lever with a 6-pin Schlage C keyway and 2-3/8 inch backset use pushbutton or turn-button locking from the inside rather than hotel shutout logic. They also sit at Grade 2 against the 11G50 Grade 1 rating.
7) How durable is the Sargent T-Zone lock for a high traffic hotel corridor?
UL cycle testing was completed at 7.6 million cycles (Verification ID V584148), against a Grade 1 requirement. The T-Zone construction is torque resistant and eliminates through bolts or surface screws, which is the joint that usually loosens first when guests hang on a lever. Heavy duty classification.
8) Can I change the function later without buying a new lock?
Yes. The 11 Line uses one lockbody design across multiple functions, and function changes are made in the field with simple cylinder removal. For a property manager that means a room converted from guest use to staff or storage use doesn't necessarily need a new lockset, and it cuts how many spare bodies you carry.
9) What lever styles, roses and finishes can I get so the 11G50 matches the rest of my doors?
Four lever designs (B, J, L and P) and four roses: B at 2-3/4 inches, O at 2-3/4 inches, L at 3-1/8 inches and E at 3-1/2 inches. Finishes run to fourteen, including 26D satin chrome, 26 bright chrome, 15 satin nickel, 14 bright nickel, 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed bronze, 10BE and 10BL dark oxidized bronze, 20D dark statuary bronze, plus BSP black and WSP white suede powder coat. The larger E rose is useful when you need to cover an oversized or previously bored hole.
10) I need a keyed commercial lever but my doors are thinner than 1-3/4 inches. What works instead of the 11G50?
The 11 Line hotel lock starts at 1-3/4 inches, so it won't suit a thinner leaf. For keyed cylindrical levers rated down to 1-3/8 inches, look at the Dexter C1000 classroom or classroom security versions (1-3/8 to 1-3/4 inch, Grade 1), the Hager 2525 entry or 2580 storeroom (Grade 2, 1-3/8 to 2 inch), or Cal-Royal AG05 storeroom (Grade 2, 1-3/8 to 1-3/4 inch). Functions differ from hotel function, so match the access behavior you actually need.
11) What door prep does the Sargent 11 Line hotel lock need?
Standard 161 door prep, the normal cylindrical bore for commercial bored locksets, with the backset matched to what you order. Installation is templated and Sargent publishes the 11 Line all-functions installation instructions and a parts manual for the series, which is what you want in hand for drilling and for later part replacement.
12) Our doors are keyed to Schlage. Do we need a different lock than the Sargent 11G50?
Not necessarily. The Sargent 11G50 accepts SARGENT Degree and Signature key systems plus SFIC and Schlage and Medeco LFIC, and is orderable with a 6 pin standard cylinder, Sargent large format interchangeable core, or Sargent small format interchangeable core. If the facility runs Yale hardware that needs to take a Schlage cylinder instead, the Accentra 107S is a Schlage cylinder adapter kit for Yale hardware, but that is an adapter for other locks, not a change to the 11G50.
13) Is there a Grade 1 lever lock that matches the Sargent 11G50 on a non-keyed passage door in the same corridor?
Yes. Where the 11G50 hotel function handles the keyed guest room door, adjacent non-keyed openings can take a Grade 1 passage lever such as the Falcon K101, a heavy duty fire rated Grade 1 passage cylindrical lock for doors 1-3/8 inch to 2-1/4 inch, or the Falcon T101 Grade 1 heavy duty passage lever with pressure release technology. Corbin Russwin CL3110 is another Grade 1 passage option, vandal resistant and fire rated, for doors 1-3/4 inch to 2 inch. None of these are keyed, so they will not carry the 11G50 keying.
14) Does the Corbin Russwin CL33903 electrified lever work as an alternative to the Sargent 11G50?
It solves a different problem. The Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever operating on 12VAC/DC for doors 1-3/4 inch to 2 inch, so it unlocks on power loss and requires wiring and a power supply at the opening. The Sargent 11G50 is a mechanical Grade 1 hotel function lock for doors 1-3/4 inch to 2-1/2 inch with no power requirement, non-handed, and available in 2-3/8, 2-3/4, 3-3/4, and 5 inch backsets. Choose the CL33903 only where the opening is part of an access control system.
15) We want electronic access on guest rooms instead of the keyed Sargent 11G50. What are the options?
The Sargent 11G50 is a mechanical single cylinder lock keyed to SARGENT Degree and Signature, SFIC, and Schlage and Medeco LFIC systems. For credential-free entry, the Delaney LP250 is a Grade 2 electronic keypad leverlock, the Emtek Classic keypad leverset is a residential-style keypad lever, and the Lockey 1150 is a heavy duty mechanical keypad lever set with double combination for doors 1-1/8 inch to 2 inch. All three step away from the Grade 1 rating and the master keying the 11G50 supports.
16) What should I order for the bathroom door inside the guest room if the entry door has the Sargent 11G50?
The 11G50 is the keyed hotel function lock for the entry door. Interior bath doors take a privacy function instead: the Hager 2540 is a Grade 2 privacy cylindrical lock with the Withnell lever for doors 1-3/8 inch to 2 inch, the Arrow MK02-TA is a privacy cylindrical lock with a Tudor knob and a fire rating, and the Kwikset 300BRNL Breton is a Grade 3 privacy lever for doors 1-3/8 inch to 1-3/4 inch. Privacy functions are non-keyed and use an emergency release rather than a cylinder.
17) Is a Grade 3 residential leverset an acceptable substitute for the Sargent 11G50 in a multi-tenant building?
They are built to different standards. The Sargent 11G50 is a commercial heavy duty Grade 1 cylindrical lock with UL cycle testing verified at 7.6 million cycles and a UL-cUL fire rating up to 3 hours. Grade 3 levers such as the Cal-Royal AUS00 entrance/office lever for doors 1-3/8 inch to 1-3/4 inch, the Callan Artino entrance leverset, and the Kwikset 200BRNL Breton passage lever are rated for lighter cycle duty. For tenant entry doors carrying corridor traffic, the Grade 1 rating and the fire rating of the 11G50 are the deciding specs.
18) What is a Grade 1 alternative to the Sargent 11G50 for a utility or institutional room where both sides should stay locked?
That is an asylum or institutional function, not hotel function. The Dexter C1000 Series asylum lock, function F87, is a Grade 1 cylindrical lock for doors 1-3/8 inch to 2 inch and is keyed on both sides. The Arrow MK33-BD-CS is a Grade 2 heavy duty asylum cylindrical lock with a ball knob and a conventional Schlage C keyway cylinder. The Sargent 11G50 is a single cylinder lock, so it keys from one side only and will not serve a both-sides-locked opening.
19) Does the Sargent 11G50 count toward LEED credits?
It's made from 68% post-consumer recycled content, cited to LEED MR credit 4. Useful documentation if you're a sustainable distributor or a public agency buying against a green building spec.
20) Is there an antimicrobial version for healthcare doors?
Microshield coating is offered as an option on the 11 Line. It's a supplement to cleaning protocols, not a replacement, and gets specified on healthcare, hospitality and other high touch openings.
21) I need a matching inactive leaf or closet pull to go with the Sargent 11G50 levers. What is used there?
A dummy trim is the right part for an inactive leaf, and it is not a substitute for the working 11G50 lock. Grade 1 options include the BEST 9K Series 1DT single dummy trim cylindrical lever, a heavy duty non-keyed trim, and the Accentra 455LN Augusta heavy duty Grade 1 single dummy cylindrical lever. The BEST 7KC Series single dummy trim is the Grade 2 medium duty equivalent. Dummy trim has no latch and no cylinder, so it cannot be keyed into the guest room key system the 11G50 uses.
How fast can I get the Sargent 28-11G50 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 28-11G50 LB 26D come with a warranty?
Absolutely. The Sargent 28-11G50 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 28-11G50 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 28-11G50 LB 26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!