Sargent 11G37-LC T-Zone Grade ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,110.04
$571.60
Sargent 11G37-LC T-Zone Grade 1 Classroom Cylindrical Lock Less Cylinder

Sargent 11G37-LC T-Zone Grade 1 Classroom Cylindrical Lock Less Cylinder

(No reviews yet) Write a Review

Model: 28-11G37-LL-26D-LC
From the 11 Line Series Collection
$1,110.04
$571.60
Selected Finish is
Selected Roses is
Selected Lever is

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

$1,110.04
$571.60
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 11G37-LC Grade 1 Classroom Cylindrical Lock Less Cylinder

Professional Grade 1 Classroom Security Solution

The Sargent T-Zone 11G37-LC Grade 1 Classroom Cylindrical Lock delivers exceptional durability and flexibility for educational facilities. This modular design lock accommodates 1 3/4" to 2 1/2" door thickness with standard 2 3/4" backset and fits standard 161 door prep. Independently verified at 7.6 million cycles through UL testing, this non-handed lock integrates with multiple key systems including Sargent Degree and Signature systems, SFIC, and Schlage LFIC cylinders.

Professional Features & Benefits

  • Exceptional Durability: UL cycle testing verified at 7.6 million cycles (Verification ID: V584148) for lifetime facility performance and reliability.
  • Universal Door Compatibility: Accommodates door thickness from 1 3/4" to 2 1/2" with standard 161 door prep and non-handed design for versatile installation.
  • Modular Field-Changeable Design: Easy function changes in the field reduce maintenance complexity and inventory requirements for facility management.
  • Multi-Key System Integration: Accepts Sargent key systems including Degree and Signature, plus SFIC and Schlage and Medeco LFIC for existing facility compatibility.
  • T-Zone Torque-Resistant Construction: Prevents lock twisting and eliminates through bolts or surface screws for enhanced security and proper installation integrity.
  • Comprehensive Fire Rating: UL-cUL fire-rated up to 3 hours with NFPA 80 compliance for life safety applications.
  • Sustainable Construction: Made from 68% post-consumer recycled content meeting LEED MR credit 4 requirements for green building projects.
  • 10-Year Limited Warranty: Comprehensive coverage provides long-term protection and confidence in demanding commercial applications.

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

  • Educational Facilities and Classrooms
  • Commercial Office Buildings
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities
  • Retail Establishments

Anti-Microbial Option

Microshield coating available as an option to supplement cleaning protocols for healthier environments in high-touch applications where hygiene is a priority.

Why Choose Sargent Quality?

Sargent T-Zone cylindrical locks deliver professional-grade reliability with torque-resistant construction independently verified at 7.6 million cycles for exceptional longevity. Comprehensive 10-year limited warranty coverage and Grade 1 ANSI/BHMA certification ensure dependable performance in demanding commercial applications. Engineered with modular design and multi-key system compatibility where reliable security and flexible facility management 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:
Classroom
Product Type:
Leversets
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Cylindrical Locks
Product Function:
Classroom
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Collection:
11 Line Series
Backset(Distance):
2-3/4"
Door Strike:
ANSI – 4-7/8" Strike, 1-1/4" Lip
Department:
Door Hardware

Sargent 28-11G37-LL-26D-LC – Frequently Asked Questions

1) Does the Sargent 11G37-LC classroom lock come with a cylinder?
No. The 11G37-LC is supplied less cylinder, so you order the cylinder separately and key it into your system. It takes Sargent key systems including Degree and Signature, plus SFIC, and Schlage and Medeco LFIC cores. That is the point of the LC suffix: schools already running a master system can drop their own core in rather than rekey a factory cylinder. It is a single-cylinder keyed function, outside key only.
2) Do I need to specify handing on the Sargent 11 Line classroom lever?
No handing to specify. The 11G37 is non-handed, so one lock covers left and right hand openings. That also means a school can stock a single part number for every classroom door instead of splitting inventory by hand. You do still choose lever style (B or L) and rose size.
3) Can I use the Sargent 11G37 on a fire rated classroom door?
Yes. The 11G37 is UL-cUL fire rated up to 3 hours and NFPA 80 compliant, and it is ANSI/BHMA Grade 1, which is the heavy duty commercial grade. Those are the two things an AHJ will ask about on a rated corridor or stairwell door.
4) How does classroom function actually operate on a Sargent 11G37?
Classroom function means the outside lever is locked and unlocked by key from the corridor side. The inside lever always retracts the latch for free egress, and there is no inside button or thumbturn. If your district wants staff to be able to lock the door from inside the room during a lockdown, classroom function will not do that, you want a classroom security function instead, such as the Dexter C1000 classroom security lock.
5) What is a Grade 1 classroom cylindrical lever alternative to the Sargent 11G37-LC?
The Dexter C1000 classroom lever lock is also a Grade 1 cylindrical classroom-function leverset, with a clutching lever and a door thickness range of 1-3/8 inch to 1-3/4 inch. The Sargent 11G37-LC is Grade 1 classroom function as well, non-handed, with a 2-3/4 inch backset and an ANSI 4-7/8 inch strike with 1-1/4 inch lip. The Sargent ships less cylinder, so a cylinder is supplied separately; the Dexter C1000 classroom is listed as keyed.
6) If the classroom door needs to be lockable from inside during a lockdown, what should be used instead of the 11G37-LC?
Look at the Dexter C1000 classroom security lever lock, which is a Grade 1 clutching keyed cylindrical lock in classroom security function, meaning the door can be secured from the secure side rather than only from the corridor. The Sargent 11G37-LC is standard classroom function, keyed with a single cylinder, so it is locked and unlocked from the outside key only.
7) For a door with a thick 2-1/2 inch leaf, which cylindrical lever covers it?
The Sargent 11G37-LC accommodates door thickness from 1-3/4 inch to 2-1/2 inch on standard 161 prep. Among comparable cylindrical levers, the Falcon K101 covers 1-3/8 inch to 2-1/4 inch and the Corbin Russwin CL3110 covers 1-3/4 inch to 2 inch, so for a full 2-1/2 inch leaf the Sargent is the one that reaches it.
8) What lever and rose choices do I have to pick when ordering the Sargent 11G37?
Two decisions besides finish. Lever style is B or L, and rose size is either L at 3-1/8 inch or O at 2-3/4 inch. Finish is 26D satin chromium over nickel or 10BE dark oxidized satin bronze. If you are adding to existing openings, match the rose diameter so the new trim covers the same footprint as what came off the door.
9) How durable is the Sargent T-Zone 11 Line for a high traffic school corridor?
Cycle life is verified at 7.6 million cycles under UL testing (verification ID V584148), against a Grade 1 heavy duty classification. The T-Zone construction resists twisting of the lock in the door and uses no through bolts or surface screws, which is the usual failure point on abused classroom doors.
10) Is there a Grade 2 classroom lever that is a lighter-duty option than the Sargent 11G37-LC?
The Cal-Royal AG03 is a classroom lever in the AG Series, Grade 2, with a 2-3/4 inch backset and a 6-pin Schlage C keyway keyed different. It shares the 2-3/4 inch backset with the Sargent 11G37-LC, but the Sargent is Grade 1 heavy duty and ships less cylinder so you can fit Sargent, SFIC, or Schlage LFIC cylinders to an existing key system.
11) What is the closest Grade 1 cylindrical lever for a door that only needs free passage, not a classroom function?
For a non-keyed opening, the Falcon K101 is a Grade 1 heavy duty passage cylindrical lock with non-handed levers, fire rated, covering 1-3/8 inch to 2-1/4 inch door thickness; the Corbin Russwin CL3110 is a Grade 1 vandal-resistant passage lever for 1-3/4 inch to 2 inch doors. The Sargent 11G37-LC is keyed classroom function and needs a cylinder ordered with it.
12) Will the Corbin Russwin CL33903 work in place of the Sargent 11G37-LC?
No. The CL33903 is a Grade 1 electrified fail safe cylindrical lever running on 12VAC/DC for 1-3/4 inch to 2 inch doors, so it requires power and door wiring. The Sargent 11G37-LC is a mechanical classroom cylindrical lock with a single cylinder and no electrical connection.
13) Which Grade 1 cylindrical levers fit a storeroom or utility door rather than a classroom door?
The Dexter C1000 asylum lock is a Grade 1 cylindrical lock in asylum, institution and utility function for 1-3/8 inch to 2 inch doors, where both sides stay key-operated. The Hager 2580 is a Grade 2 storeroom cylindrical lock with a Withnell lever for 1-3/8 inch to 2 inch doors. The Sargent 11G37-LC is classroom function, keyed outside with a single cylinder.
14) Can I change the function later without buying a whole new lock?
The 11 Line is a modular design and functions can be changed in the field, so a classroom lock can be converted rather than replaced when a room changes use. For a maintenance shop that means fewer complete locksets sitting on the shelf.
15) Is there a Sargent 11G37 option for healthcare or other high-touch areas?
Microshield antimicrobial coating is available as an option on the 11 Line, intended to supplement cleaning in high-touch applications. It is specified as an option, not standard on the base lock.
16) Does the Sargent 11 Line count toward LEED on a school project?
It is built from 68% post-consumer recycled content, which the manufacturer states meets LEED MR credit 4 requirements. Useful documentation if you are submitting materials for a green building project.
17) Is a keypad leverset like the Delaney LP250 an alternative to the Sargent 11G37-LC classroom lock?
They solve different problems. The Delaney LP250 is a Grade 2 electronic keypad leverlock and the Lockey 1150 is a mechanical keypad lever set in passage function for 1-1/8 inch to 2 inch doors, both credential-based rather than keyed. The Sargent 11G37-LC is a Grade 1 keyed classroom lock with a single cylinder that can be pinned into a Sargent, SFIC, or Schlage LFIC master key system.
18) I need a matching lever with no latch for a pair of classroom doors. What goes with the Sargent 11G37-LC?
A dummy trim gives you the lever appearance without a latch: the BEST 9K Series 1DT is a Grade 1 non-keyed heavy duty single dummy trim cylindrical lever, and the Accentra 455LN Augusta is a Grade 1 heavy duty single dummy cylindrical lever in the 5400 Series. The Sargent 11G37-LC itself is a keyed classroom lock and is not offered as a dummy.
How fast can I get the Sargent 28-11G37-LL-26D-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 28-11G37-LL-26D-LC come with a warranty?
Absolutely. The Sargent 28-11G37-LL-26D-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 28-11G37-LL-26D-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 28-11G37-LL-26D-LC 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.
!