Sargent 8237 Classroom Lock Fu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,683.87
$588.16
Sargent Sargent 8200 Series - (8237) Classroom Lock Function Rose Trim, Heavy Duty Single Cylinder Mortise Lock, Grade 1 SGT-8237

Sargent 8237 Classroom Lock Function Heavy Duty Single Cylinder Mortise Lock with Rose Trim

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Model: 8237 EA 26D
From the 8200 Series Collection
$1,683.87
$588.16
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,683.87
$588.16
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Sargent 8237 Classroom Function Heavy Duty Mortise Lock with Rose Trim and EcoFlex Technology

Industry Benchmark Grade 1 Mortise Lock with Maximum Security and Performance

The Sargent 8237 represents the industry benchmark for classroom function mortise locks, delivering maximum security, performance, and durability with high-quality components. This heavy-duty single cylinder design with rose trim is engineered for 1-3/4" door thickness and 2-3/4" backset depth, featuring advanced EcoFlex technology that operates from 12 to 24VDC while reducing power consumption up to 96%. The multi-functional lock body integrates with all Sargent key systems including Degree, Signature, KESO, and XC, while meeting ANSI/BHMA A156.13 Series 1000 Grade 1 operational standards.

Professional Features & Benefits

  • Ultra-High Cycle Rating: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for exceptional long-term reliability in high-traffic educational environments.
  • EcoFlex Technology: Advanced electromechanical operation from 12 to 24VDC with EcoFlex technology reducing power consumption up to 96% for energy-efficient performance.
  • Door Compatibility: Designed for 1-3/4" door thickness with 2-3/4" backset depth for standard commercial door applications.
  • Heavy-Duty Construction: Grade 1 operational rating with patented design exceeding independently verified testing for maximum strength and durability in commercial applications.
  • Universal Key System Integration: Compatible with all Sargent key systems (Degree, Signature, KESO, and XC) providing flexible master keying options for comprehensive access control.
  • Fire-Rated Performance: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.
  • Status Indicator Option: Redesigned status indicator with large viewing window available for visual operational assurance and monitoring capabilities.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm voltage (12 to 24VDC) and current capacity before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including any configurable options per application requirements.
  6. Restore power and test all functions including normal operation, alarm/alert functions, and integration with connected systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

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

Why Choose Sargent Quality?

Sargent 8237 mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in UL testing. The 10-year limited warranty with 2-year electrical component coverage demonstrates Sargent's commitment to quality and performance. Engineered for demanding commercial applications where dependable security and operational excellence are essential, this industry benchmark lock provides the strength, flexibility, and advanced features required for professional installations.

Manufacturer Resources

SARGENT Full Line Catalog

Product Specs

Series:
8200 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:
Mortise
Lock Function:
Classroom
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Handle Type:
Lever
Segment:
Door Hardware
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Classroom
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent 8237 EA 26D – Frequently Asked Questions

1) Will the Sargent 8237 classroom mortise lock fit a 1-3/4 inch door?
Yes, 1-3/4 inch is exactly what the 8237 is built for, with a 2-3/4 inch backset. That is the standard commercial door thickness and backset, so on a typical hollow metal or solid core commercial opening with an ANSI mortise pocket it drops in. If your doors are thicker than 1-3/4 inches, this is not the right lock body.
2) How does the classroom function on the Sargent 8237 actually work day to day?
Classroom function means the outside lever is locked and unlocked by key from the outside only, and the inside lever always retracts the latch for free egress. Teachers keep a key; there is no inside button or thumbturn to fumble with. It is a single cylinder lock, keyed outside only.
3) What do I have to specify when ordering a Sargent 8237 mortise lock?
Four things beyond finish. Lever design (A, B, E, F, J, L, P or W), rose (LN at 2 inches, O at 2-3/4 inches, E at 3-1/16 inches, or L at 3-1/2 inches), cylinder choice, and keying. Cylinder options are a standard cylinder, less cylinder, 70 prep for small format interchangeable core less core, or 60 prep for large format interchangeable core less core. Keying is keyed different, keyed alike, or a specific key code; pick None if you are ordering less cylinder.
4) I need to match the Sargent keys already used in my school. Will the 8237 key into my existing system?
It works with all Sargent key systems, including Degree, Signature, KESO and XC, so it master keys into an existing Sargent building system. Order it keyed alike or to a key code to fold it into your current bitting. If you run interchangeable cores, specify the 70 small format or 60 large format prep less core and drop your own cores in.
5) I need lockdown from inside the classroom without opening the door. Is the 8237 the right choice?
No. A standard classroom function like the 8237 locks by key from the corridor side only, so a teacher has to step into the hall to secure the door. For inside lockdown you want an intruder or classroom security function: the TownSteel FME-4000 Series is an electronic intruder classroom mortise lock, and the BEST 45HCA heavy duty mortise lock body is offered in an intruder function.
6) What is a direct cross for a Sargent 8237 classroom mortise lock from another manufacturer?
The closest straight equivalents are the Corbin Russwin ML2003, a Grade 1 mortise classroom lockset for 1-3/4 inch doors, and the Cal-Royal NM8070, a heavy duty Grade 1 classroom mortise lockset with auxiliary deadlatch also listed for 1-3/4 inch doors. All three are Grade 1 mortise locks in classroom function. The Sargent 8237 keys into Sargent's Degree, Signature, KESO and XC key systems, so if the building is already standardized on Sargent keyways the 8237 keeps that keying continuous while the Corbin Russwin or Cal-Royal bodies bring their own cylinder platform.
7) I need a classroom mortise lock with a keypad instead of a key. What should I use?
Move to an electronic classroom mortise lock. The Alarm Lock DL3500CR is a Grade 1 Trilogy classroom-function electronic mortise lock with 300 user codes for 1-5/8 to 1-7/8 inch doors, and the DL2700CR is the Trilogy T2 classroom-function mortise lock with a weatherproof design over the same door thickness range. The TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset using RFID credentials on 1-3/4 inch doors. The Sargent 8237 is a mechanical keyed lock with lever trim, so it stays on key control rather than codes or cards.
8) Can I use a Baldwin 6310 mortise body in place of the Sargent 8237?
Check the backset before you do. The Baldwin 6310 entry/storeroom mortise lock body is built on a 2-1/2 inch backset and is listed for doors 1-3/8 inch and over, and the 6301 entry/apartment body is also 2-1/2 inch backset. The Sargent 8237 uses a 2-3/4 inch backset on a 1-3/4 inch door, which is the common commercial mortise pocket. A 2-1/2 inch backset body will not land in a pocket prepped for 2-3/4 inch without new door prep.
9) Which rose size should I order for the Sargent 8237 on a narrow stile aluminum door?
The LN rose at 2 inches (51mm) is the smallest of the four and the one to use where stile width is tight. The O rose is 2-3/4 inches, the E rose 3-1/16 inches, and the L rose 3-1/2 inches. Measure your available stile face before picking; a 3-1/2 inch L rose needs real room around the lock.
10) Is the Sargent 8237 an electronic lock, and what is the 12 to 24VDC EcoFlex part about?
The 8237 itself is a mechanical, keyed Grade 1 mortise lock, not an access control device. The 8200 platform offers electrified lock bodies running 12 to 24VDC with EcoFlex, which cuts power draw up to 96 percent for tie-in to access control. If you want a full standalone electronic classroom lock instead, the TownSteel FME-2000 Series is a Grade 1 heavy duty classroom mortise lockset with RFID, and the Alarm Lock DL3500CR is a Grade 1 keypad classroom mortise lock.
11) Is the Sargent 8237 tough enough for a high traffic school corridor?
Heavy duty, Grade 1 to ANSI/BHMA A156.13 Series 1000, and it completed UL's Cycle Above and Beyond test at 16 million cycles (Verification ID V584148). For a classroom or corridor door cycled hundreds of times a day, that is the top operational tier available in a mortise lock.
12) The door does not need to be lockable from inside for a lockdown - I just need a keyed exterior. What instead of the 8237?
That is storeroom function rather than classroom. The Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option, and the Accentra 8805FL is a Grade 1 storeroom mortise lock with Arcadia lever in the 8800 Series. Storeroom keeps the outside lever locked at all times with key entry; the Sargent 8237 classroom function lets a key lock and unlock the outside lever so staff can secure the room during a lockdown.
13) What do I use for a classroom door that also needs a lockdown function operated from inside the room?
Look at intruder-function hardware. The BEST 45HCA heavy duty mortise lockbody is offered in an intruder function, and the TownSteel FME-4000 is a Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID technology for 1-3/4 inch doors. The Sargent 8237 is classroom function keyed from the outside single cylinder, so securing the door means keying the outside lever from the corridor side.
14) Is the Schlage L9092EU an equivalent to the Sargent 8237 for an access control tie-in?
They are not the same function. The Schlage 03A L9092EU is a heavy duty corridor-function mortise lock, electrically locked/unlocked on the outside lever, keyed outside, with request to exit and 12/24VDC operation on 1-3/4 inch doors. The Sargent 8237 is the mechanical classroom function with lever and rose trim. If the opening is being wired to a card reader, the Schlage corridor unit is the electrified answer; if the door is staying on keys, the 8237 is the match.
15) Will a Schlage L0170 work as a substitute for the Sargent 8237?
No. The Schlage L0170 is a Grade 1 heavy duty non-keyed half dummy trim for mortise applications on 1-3/4 inch doors - it has no latch and no cylinder, and is used on inactive leaves. The Sargent 8237 is a keyed single cylinder classroom mortise lock. They can look alike on the door face but only the 8237 latches and locks.
16) I need a Grade 1 mortise lock for a behavioral health unit, not a standard classroom. What changes?
Anti-ligature trim changes. The TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, the MRX-A-01 is the same passage function with satin stainless ligature resistant arch trim, and the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel. The Sargent 8237 uses conventional lever trim in A, B, E, F, J, L, P and W lever styles, which is not a ligature resistant profile.
17) Is there an electrified mortise lock that runs on the same 12 to 24VDC as the Sargent 8237 EcoFlex option?
Yes. The BEST 45HW is a heavy duty wired electromechanical mortise lock with 12V/24V operation, and the Command Access ML190 is a heavy duty motorized mortise lock in storeroom function with field selectable EL/EU operation at 24VDC. The Sargent 8237 with EcoFlex operates from 12 to 24VDC and reduces power consumption up to 96 percent, and it is the one of the three carried in classroom function.
18) Can I get the Sargent 8237 in a finish that matches the rest of my building hardware?
Sixteen finishes cover most standardization jobs: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark bronze, 10BE, 10BL, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 26 bright chrome, 26D satin chrome, 32 bright stainless, 32D satin stainless, plus BSP black and WSP white suede powder coat. 26D and 32D are the usual institutional picks.
19) Does the Sargent 8237 use levers or knobs, and is it ADA friendly?
Lever trim, in eight designs (A, B, E, F, J, L, P, W). Levers are what you want on classroom and corridor doors for accessible operation, since they need no tight grasping or twisting. If you specifically need knob trim on a mortise body, look at the Baldwin 6310 knob by knob mortise lock body instead.
20) What mortise lock fits a restroom or office off the classroom corridor rather than the classroom itself?
For a restroom, the Cal-Royal NM8440 is a heavy duty Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock with 2-3/4 inch backset for 1-3/4 to 2 inch doors. For an office, the Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with auxiliary deadlatch, and the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon, non-keyed, 2-3/4 inch backset. The Sargent 8237 stays on the classroom doors where the key needs to control the outside lever.
21) What is the difference between the Sargent 8237 and the Dormakaba E-Plex 5086 for a classroom door?
The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock in a back-to-back configuration, so credentials are read on both sides. The Sargent 8237 is the mechanical classroom function, single cylinder, with rose trim and a lever. Choose the E5086 when the room needs coded or card entry logged on both faces; choose the 8237 when key control and a 16 million cycle mechanical body are what the spec calls for.
How fast can I get the Sargent 8237 EA 26D delivered?
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Can I return it if it doesn’t work for me?
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Does the Sargent 8237 EA 26D come with a warranty?
Absolutely. The Sargent 8237 EA 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 8237 EA 26D?
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