Sargent 11G17 T-Zone Grade 1 C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,213.00
$647.57
SGT-11G17

Sargent 11G17 T-Zone Grade 1 Classroom Utility Double Cylinder Cylindrical Lock

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Model: 28-11G17 LB 26D
From the 11 Line Series Collection
$1,213.00
$647.57
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,213.00
$647.57
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Sargent T-Zone Grade 1 Classroom Utility Double Cylinder Lock with 7.6 Million Cycle Rating

Professional Grade 1 Cylindrical Lock for Institutional Applications

The Sargent T-Zone 11 Line Series delivers Grade 1 performance with modular design flexibility for classroom utility, asylum, and institutional applications. This double cylinder cylindrical lock features T-Zone construction that prevents twisting, fits standard 161 door prep, and accommodates door thickness from 1-3/4" to 2-1/2" with 2-3/4" standard backset. Independently verified at 7.6 million cycles and constructed from 68% post-consumer recycled content, this lock integrates with SARGENT key systems including Degree and Signature, plus SFIC, Schlage, and Medeco LFIC systems.

Professional Features & Benefits

  • Exceptional Durability: UL Cycle Above and Beyond test completed at 7.6 million cycles (Verification ID: V584148) for lifetime facility performance.
  • Door Compatibility: Accommodates door thickness from 1-3/4" to 2-1/2" with 2-3/4" standard backset and fits standard 161 door prep for versatile installation.
  • T-Zone Construction: Torque-resistant design prevents lock twisting and eliminates through bolts or surface screws for superior installation integrity.
  • Modular Design Flexibility: Easy field function changes 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, Schlage, and Medeco LFIC for seamless facility integration.
  • Sustainable Construction: Made from 68% post-consumer recycled content meeting LEED MR credit 4 requirements for green building initiatives.
  • Comprehensive Certifications: ANSI/BHMA A156.2 Series 4000 Grade 1, UL-cUL Fire-Rated up to 3 hours, ADA compliant, and Florida Building Code approved.
  • Manufacturer Warranty: 10-year limited warranty for long-term 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 from 1-3/4" to 2-1/2", standard 161 prep, and 2-3/4" standard backset dimensions.
  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 T-Zone construction system.
  4. Install all mounting hardware and secure the cylindrical lock to door per manufacturer torque specifications, ensuring T-Zone components are properly seated.
  5. Install cylinders and configure for desired function, utilizing the modular design for easy field changes as needed.
  6. Test lock operation to verify proper function of both cylinders, latchbolt throw, and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Educational Facilities and Classrooms
  • Healthcare and Institutional Buildings
  • Government and Municipal Facilities
  • Commercial Office Buildings
  • Multi-Tenant Residential Properties
  • Asylum and Correctional Facilities
  • High-Security Commercial Applications

Why Choose Sargent Quality?

Sargent T-Zone 11 Line Series locks deliver professional-grade reliability with independently verified 7.6 million cycle testing and Grade 1 ANSI/BHMA certification. The 10-year limited warranty and sustainable construction from 68% post-consumer recycled content demonstrate Sargent's commitment to both performance and environmental responsibility. Engineered for demanding institutional applications where dependable security and long-term durability are essential.

Product Specs

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

Sargent 28-11G17 LB 26D – Frequently Asked Questions

1) What does the Sargent 11G17 double cylinder function actually do on the door?
The 11G17 is the asylum/institution/utility function: there is a keyed cylinder on both sides, so the lever is always locked and a key is required from either direction to retract the latch. Nobody passes without a key, which is why it lands in detention, psychiatric, mechanical and utility rooms rather than on a normal classroom corridor door. If you want a door that stays free-egress from the inside, this is the wrong function.
2) Is the Sargent 11 Line lock rated for a fire door, and what grade is it?
ANSI/BHMA A156.2 Series 4000 Grade 1, UL-cUL fire rated up to 3 hours, ADA compliant and Florida Building Code approved. It also carries a UL Cycle Above and Beyond result of 7.6 million cycles under verification ID V584148, which is the number to quote when a spec calls for documented cycle life.
3) We key our building on Schlage C. Does that push us away from the Sargent 11G17?
Not necessarily. The Sargent 11 Line accepts SARGENT key systems including Degree and Signature plus SFIC, Schlage, and Medeco LFIC systems, and the cylinder can be ordered as a 6-pin standard, Sargent large format interchangeable, or Sargent small format interchangeable core. If you would rather stay with a factory Schlage C keyway lock, the Cal-Royal AG00 entrance lever and AG03 classroom lever ship with 6-pin Schlage C keyed different cylinders, and the Arrow MK33-BD-CS asylum lock uses a conventional Schlage C cylinder.
4) What is the closest Grade 1 equivalent to the Sargent 11G17 asylum lock from another manufacturer?
The Dexter C1000 Series asylum lock (F87) is the nearest match in function and grade: it is a Grade 1 cylindrical lock with an Asylum/Institution/Utility function, the same function family as the Sargent 11G17. The Dexter lists a door thickness range of 1-3/8 inch to 2 inch, while the Sargent 11 Line covers 1-3/4 inch to 2-1/2 inch, so verify the leaf thickness before swapping. The Sargent is a lever design; confirm the trim style you need on the Dexter.
5) Can a storeroom lever be used in place of the Sargent 11G17?
Only if the opening does not need key control from both sides. A storeroom lock such as the Cal-Royal AG05, Grade 2 with a deadlocking latchbolt for 1-3/8 inch to 1-3/4 inch doors, or the Hager 2580 Grade 2 storeroom lock with Withnell lever for 1-3/8 inch to 2 inch doors, keeps the outside lever locked at all times with free egress inside. The Sargent 11G17 is a double cylinder asylum/institution/utility lock, meaning both levers are controlled by key, so it is not an egress-free function.
6) Our doors are 2-1/4 inch thick. Which comparable locks will actually fit?
The Sargent 11 Line covers 1-3/4 inch through 2-1/2 inch doors, so it handles 2-1/4 inch directly. Among the comparables, the Falcon K101 is the only one rated to 2-1/4 inch, at 1-3/8 inch to 2-1/4 inch, and it is a non-keyed passage function. The Dexter C1000 asylum stops at 2 inch, and the Corbin Russwin CL3110 stops at 2 inch, so neither covers a 2-1/4 inch leaf.
7) Do I need to specify handing when ordering the Sargent 11G17?
No handing to specify. The 11 Line cylindrical lock is non-handed, so one part covers left and right hand doors and you can stock a single lock for a whole building. You do still specify lever style (B, J, L or P), rose (B or O at 2-3/4 inches, L at 3-1/8, E at 3-1/2) and finish.
8) Can I change the Sargent 11 Line lock to a different function later without buying a new lock?
The 11 Line uses one modular lockbody that supports multiple functions, so a maintenance crew can make field function changes instead of stocking a separate lock for every opening. For a facility standardizing on one platform that cuts the parts you have to carry.
9) What is a cheaper alternative to the Sargent 11G17 for an asylum function lock?
Two other asylum-function cylindrical locks worth looking at: the Dexter C1000 Series asylum (F87), a Grade 1 lock rated for 1-3/8 to 2 inch doors, and the Arrow MK33-BD-CS, a Grade 2 heavy duty asylum lock with a ball knob and conventional cylinder in the Schlage C keyway. The Dexter suits thinner doors than the Sargent covers; the Arrow is knob trim rather than lever, so it is not an ADA lever solution.
10) Will the Sargent 11G17 hold up on a high-traffic institutional door?
Heavy duty Grade 1 with T-Zone torque-resistant construction that keeps the lock from twisting in the door under abuse, and a documented 7.6 million cycle UL result. On corridor and utility doors that get pulled on hard all day, the torque resistance matters more than the cycle number, because twisting is what loosens a cylindrical lock first.
11) What Grade 1 lever lock should go on the non-keyed doors alongside the Sargent 11G17?
For passage openings in the same corridor, Grade 1 non-keyed lever options include the Falcon K101, a heavy duty Grade 1 fire rated passage lock covering 1-3/8 inch to 2-1/4 inch doors, the Falcon T101 heavy duty Grade 1 passage lever, the Corbin Russwin CL3110 Grade 1 vandal resistant passage lock for 1-3/4 inch to 2 inch doors, and the Design Hardware X75 Grade 1 passage lever for 1-3/4 inch doors. The Sargent 11G17 itself is keyed with cylinders on both sides.
12) Which comparable locks look like substitutes for the Sargent 11G17 but are not?
Dummy and passage trims are the common mix-up. The BEST 9K Series 1DT is a Grade 1 single dummy trim with no latch at all, and the Accentra 455LN Augusta is a Grade 1 single dummy lever - both are pull trim only. Residential-duty levers such as the Kwikset 200BRNL Breton passage set are Grade 3. None of these provide the keyed double cylinder control of the Sargent 11G17, which is a Grade 1 heavy duty keyed cylindrical lock.
13) Is there a Grade 1 electrified cylindrical lever if the institutional opening needs access control instead of the Sargent 11G17?
Yes. The Corbin Russwin CL33903 is a Grade 1 fail safe electrified cylindrical lever running on 12VAC/DC for 1-3/4 inch to 2 inch doors, available with NZ lever and D rose. It releases on power loss, which suits openings tied to a fire alarm or card system. The Sargent 11G17 is a purely mechanical double cylinder lock keyed from both faces with no electrical connection.
14) What finishes does the Sargent 11 Line lever lock come in so I can match other doors in the building?
Fourteen finishes: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized bronze, 10BE and 10BL dark oxidized bronze variants, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 26 bright chrome, 26D satin chrome, plus BSP black and WSP white suede powder coat. 26D and 10B are the two most commonly specified on institutional openings.
15) Does the Sargent 11 Line lock help with LEED points?
It is built from 68 percent post-consumer recycled content, which counts toward LEED MR credit 4. That is the figure to hand to a sustainability consultant or a green-building submittal package.
How fast can I get the Sargent 28-11G17 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 28-11G17 LB 26D come with a warranty?
Absolutely. The Sargent 28-11G17 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 28-11G17 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
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