Sargent 8224-ET Heavy Duty Sin...
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$1,848.69
$1,392.34
Sargent Sargent 8200 Series - (8224) Room Door Function Escutcheon Trim, Heavy Duty Single Cylinder with Deadbolt Mortise Lock, Grade 1 SGT-8224-ET

Sargent 8224-ET Heavy Duty Single Cylinder Mortise Lock with Deadbolt and Room Door Function

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Model: 8224 LE1A 26D
From the 8200 Series Collection
$1,848.69
$1,392.34
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,848.69
$1,392.34
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Sargent 8200 Series Heavy Duty Single Cylinder Mortise Lock with Deadbolt and Room Door Function

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8200 Series mortise lock represents the industry benchmark for commercial-grade security hardware, featuring a multi-functional lock body with heavy-duty construction and Grade 1 operational rating. This room door function model includes single cylinder operation with deadbolt security, 2 3/4" backset depth, and 1 3/4" door thickness compatibility. The lock integrates with all SARGENT key systems including Degree, Signature, KESO, and XC, while meeting ANSI/BHMA A156.13 Series 1000 standards with UL 10C fire rating up to 3 hours.

Professional Features & Benefits

  • Door Compatibility: 2 3/4" backset depth and 1 3/4" door thickness compatibility for standard commercial door applications.
  • Heavy-Duty Durability: Exceeds independently verified testing with completion of UL Cycle Above and Beyond test at 16 million cycles for exceptional durability in high-traffic commercial applications.
  • EcoFlex Power Options: Electromechanical versions operate from 12 to 24VDC with EcoFlex technology reducing power consumption up to 96% for energy-efficient operation.
  • Heavy-Duty Construction: Multi-functional lock body with 3/4" latchbolt throw and curved lip strike for maximum security performance.
  • Universal Key System Compatibility: Compatible with all SARGENT key systems including Degree, Signature, KESO, and XC for flexible master keying and security management options.
  • Fire-Rated Certification: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for critical life safety applications.
  • Grade 1 Security Rating: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification for maximum security performance.
  • Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.

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 for electromechanical functions) 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 field-reversible handing and any configurable options per application requirements.
  6. Restore power and test all functions including normal operation, deadbolt security, 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

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

Why Choose Sargent Quality?

Sargent 8200 Series mortise locks deliver professional-grade reliability with heavy-duty construction rated for 16 million cycles in independently verified testing. The 10-year limited warranty with 2-year electrical component coverage provides comprehensive protection for demanding commercial applications. Engineered with patented design and construction, these locks represent the strongest and most durable mortise lock solution in the industry where dependable performance is essential.

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

Sargent 8224 LE1A 26D – Frequently Asked Questions

1) Will the Sargent 8224 mortise lock fit a 1-3/4 inch commercial door?
Yes. The 8224 room door mortise lock is built for 1-3/4 inch door thickness with a 2-3/4 inch backset, which is the standard commercial prep. If your doors are thicker or thinner than 1-3/4 inches, this is the wrong part for that opening.
2) What does the room door function on a Sargent 8224 actually do?
Room door function means the lever and a separate deadbolt work together on one door. The key retracts the deadbolt from outside, the inside lever or thumbturn side gives egress, and the 3/4 inch latchbolt holds the door closed day to day. It's a single cylinder lock, so keyed access is from the outside only. Common in offices, dorm-style rooms, and multi-tenant suites where you want a deadbolt without going to a double cylinder.
3) Will the Sargent 8224 latch into my existing ANSI strike?
The 8224 throws a 3/4 inch latchbolt and ships with a curved lip strike. A 3/4 inch throw is deep enough for a standard commercial frame strike pocket, but if you're reusing an existing strike, check that the lip projection clears your frame stop and that the pocket is deep enough for both the latch and the deadbolt.
4) Is the Sargent 8200 Series mortise lock fire rated for a 3 hour opening?
Yes. The 8200 Series carries UL 10C positive pressure fire rating up to 3 hours and complies with NFPA 80. That covers stairwell, corridor, and tenant separation doors in most commercial fire-rated assemblies.
5) Is the Sargent 8224 Grade 1, and how many cycles is it rated for?
Grade 1 under ANSI/BHMA A156.13 Series 1000 operational, and Sargent has taken it through the UL Cycle Above and Beyond test at 16 million cycles. For a facility standardizing on one lock across high-traffic openings, that cycle count is the number to put in the spec.
6) What do I have to specify when ordering a Sargent 8224 mortise lock?
Four decisions. Escutcheon trim: LE1, LS, LW1, or WT. Lever design: A, B, E, F, J, L, P, or W. Finish, from 16 choices including 26D satin chrome, 32D satin stainless, 10B oil rubbed bronze, and BSP black or WSP white suede powder coat. Then the cylinder: standard cylinder, less cylinder, 70 for small format interchangeable core prep less core, or 60 for large format IC prep less core, plus keying (keyed different, keyed alike, or to a key code). Pick less cylinder or an IC prep only if you're supplying your own cores.
7) Can I get the Sargent 8224 prepped for our small format interchangeable core system?
Yes. Order the 70 prep for small format interchangeable core or the 60 prep for large format, both supplied less core so you install your own. If you want Sargent to key it, choose the standard cylinder and specify keyed different, keyed alike, or a key code. The 8200 body works with all Sargent key systems, including Degree, Signature, KESO, and XC, which matters if you're extending an existing masterkey system rather than starting one.
8) My doors are 1-5/8 to 1-7/8 inches thick. Can I still use a Sargent 8200 mortise lock?
No. The 8200 is specified for 1-3/4 inch doors, so anything outside that thickness is a mismatch. For a thicker range, the Hager 3800 Series mortise locks cover 1-3/4 to 2-1/2 inches, and the Alarm Lock Trilogy DL2700 and DL3500 electronic mortise locks cover 1-5/8 to 1-7/8 inches. Measure the door edge before you order.
9) What is the closest Grade 1 mortise lock to the Sargent 8224 if I need a storeroom function instead of room door?
The Sargent 8224 is a Grade 1 mortise lock built for room door function, so it is not the part for an opening that has to stay locked from the outside at all times. Two Grade 1 mortise storeroom options cover that: the Accentra 8805FL storeroom mortise lock from the 8800 Series, and the Cal-Royal NM8080 heavy duty Grade 1 storeroom mortise lockset, which is offered with an interchangeable core option and fits a 1-3/4 inch door. The Sargent 8224 stays the choice where you want the room door function with its deadbolt.
10) I need a Grade 1 mortise lock for a classroom door, not a room door. What should I order?
Room door function is what the Sargent 8224 does, and classroom function is a different lock. For a mechanical Grade 1 classroom mortise lock, the Corbin Russwin ML2003 from the ML2000 Series and the Cal-Royal NM8070 with auxiliary deadlatch both carry classroom function and fit a 1-3/4 inch door. The Sargent 8224 also fits 1-3/4 inch doors, so the door prep and thickness are the same across all three - the difference is how the outside lever behaves when the room is secured.
11) Can I use the Sargent 8224 on a restroom or bedroom door for privacy?
The Sargent 8224 is a keyed single cylinder room door lock, which is not the same as a privacy function. For a bath, bedroom, or restroom, the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S 3800 Series is a Grade 1 privacy mortise lock with a 2-3/4 inch backset. Both are privacy/bed/bath function, where the inside occupant controls the lock rather than a key holder.
12) I need the outside lever to unlock electrically from the access control panel - can the Sargent 8224 do that?
The Sargent 8224 as ordered is a mechanical keyed lock. For an opening wired to an access control panel, the Schlage L9092EU 03A is an electric lock/unlock outside lever mortise lock, keyed outside, with request to exit and 12/24VDC operation on a 1-3/4 inch door, and the Command Access ML190 Series is a heavy-duty motorized mortise lock with field selectable fail safe or fail secure operation on 24VDC. The BEST 45HW Series is a wired electromechanical heavy duty mortise lock running 12V or 24V. All three take a power run to the door; the 8224 does not.
13) My door is 1-5/8 inch thick - the Sargent 8224 lists 1-3/4 inch. What fits?
The Sargent 8224 is built for 1-3/4 inch door thickness. For a thinner leaf, the Alarm Lock Trilogy DL2700CR and DL3500CR are Grade 1 classroom function electronic mortise locks covering 1-5/8 inch to 1-7/8 inch, and the DL4500 Series is a Grade 1 electronic mortise deadbolt over the same 1-5/8 to 1-7/8 inch range. The Baldwin 6310 entry/storeroom mortise lock body covers 1-3/8 inch and over with a 2-1/2 inch backset - note that backset differs from the 2-3/4 inch the Sargent 8224 uses, so the door prep is not the same.
14) I need a mortise lock for a behavioral health or ligature-resistant opening. Is the Sargent 8224 suitable?
The Sargent 8224 uses a standard lever, offered in A, B, E, F, J, L, P and W styles, which is not an anti-ligature trim. For those openings, the TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel and the MRX-A-01 is a ligature resistant arch trim mortise lockset in satin stainless, both passage function on 1-3/4 inch doors. 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.
15) Can I put the Sargent 8224 on an aluminum storefront door?
The Sargent 8224 is built around a 2-3/4 inch backset and 1-3/4 inch door thickness with escutcheon trim, which is a hollow metal and wood door package rather than a narrow stile aluminum one. For storefront, the Alarm Lock DL1300NW Trilogy Networx wireless electronic mortise lock is made for Adams Rite deadlatches, and the Dormakaba E-Plex 2066 Series electronic pushbutton keyless mortise lock is a wide stile unit. The Kaba Ilco BR Series is a bottom rail lock for glass doors.
16) Do I need to order the Sargent 8224 handed, left or right?
No separate handed part number is needed. Handing is field reversible on the 8200 mortise lock, so the same lock covers a left hand or right hand opening and you set it during install. That's useful for a property manager stocking spares across a building with doors swinging both ways.
17) Should I use a mortise lock like the Sargent 8224 or a cylindrical lockset?
A mortise lock needs a rectangular pocket cut into the door edge, which is why it can carry both a latchbolt and a deadbolt in one body, as the 8224 does. A cylindrical lock only needs a bored hole and is faster to install and to retrofit, but the deadbolt is a separate device. If your doors already have a mortise pocket, stay mortise. If they're bored, a cylindrical Grade 1 like the Schlage PC Series passage lock is the matching prep, and you'd add a deadbolt separately for security.
18) What are the alternatives to a Sargent 8224 if I want a Grade 1 mortise lock with a deadbolt?
Closest mechanical equivalent with a deadbolt is the Cal-Royal NM8440, a Grade 1 heavy duty privacy mortise lockset with deadbolt for 1-3/4 inch doors, though it's a privacy function rather than keyed room door. If you want keyed entry without the deadbolt, the Corbin Russwin ML2003 Grade 1 classroom mortise lockset and the Accentra 8805FL Grade 1 storeroom mortise lock both fit that brief. The Sargent stays the pick when you need the deadbolt and single cylinder keyed operation on one 2-3/4 inch backset body.
19) Does the Sargent 8224 come with escutcheon trim or do I order the plates separately?
Trim is part of the order. The 8224-ET is the escutcheon trim version, and you pick the plate style at order time from LE1, LS, LW1, or WT along with the lever design and finish. Sectional rose trim is a different configuration of the 8200 body, so specify escutcheon if that's the look you're matching on the rest of the building.
20) Is the Sargent 8200 mortise lock suitable for a school or hospital corridor door?
It's rated for it. Grade 1 heavy duty, 16 million cycles of tested durability, and UL 10C fire rating to 3 hours cover the traffic and life safety demands of educational and healthcare corridors. Note the room door function keys from the outside only and carries a deadbolt, which many facilities restrict on classroom doors. If a classroom-specific function is required, the Cal-Royal NM8070 Grade 1 classroom mortise lockset or the Corbin Russwin ML2003 are the function-correct picks.
21) What is the difference between the Sargent 8224 and an electronic mortise lock like the Schlage CO-100 or TownSteel FME-2000?
The Sargent 8224 is a mechanical lock - it is keyed and non-electronic, so it needs no power, no credentials, and no programming. The Schlage CO-100 is a standalone electronic mortise lock with a keypad reader, Grade 1, privacy function, for 1-3/4 inch doors. The TownSteel FME-2000 Series is a Grade 1 heavy duty classroom mortise lockset with RFID, also 1-3/4 inch. All three fit the same door thickness; the electronic units add credential management and the audit and access control that comes with it, while the 8224 is keyed access only.
22) The door does not need a key - is there a simpler mortise lock than the Sargent 8224?
The Sargent 8224 is a keyed single cylinder lock, so on a hall or closet door most of what you are buying goes unused. Non-keyed Grade 1 mortise options include the Schlage PM010 passage latch mortise lock, the Falcon MA101 heavy-duty mortise passage lock with field reversible operation, and the Hager 3810E 3800 Series passage mortise lock, which comes with an escutcheon and a 2-3/4 inch backset - the same backset the Sargent 8224 uses, so the door prep carries over.
23) Will an Emtek 3102 Memphis or Schlage L0170 work in place of the Sargent 8224?
No - those are dummy trim, not working locks. The Emtek 3102 Memphis and Emtek 3104 Hamilton mortise entrance locksets are dummy function, and the Schlage L0170 is half dummy trim, a Grade 1 mortise non-keyed lever. They mount on an inactive leaf or a false door and have no latch that operates. The Sargent 8224 is a keyed single cylinder lock with a deadbolt, so a dummy is only correct on the leaf that never opens.
24) Is a mortise lock body like the BEST 45HCA the same thing as the Sargent 8224?
They are not ordered the same way. The BEST 45H Series public entrance and the 45HCA intruder function items are heavy duty mortise lock bodies - the chassis alone. The Sargent 8224 is supplied with escutcheon trim and a lever, with escutcheon choices LE1, LS, LW1 and WT and levers A, B, E, F, J, L, P and W. If you are replacing a failed chassis behind trim you are keeping, a lock body is the right call; if you are trimming out a bare door, you need the lever and escutcheon too.
25) I only need a deadbolt on this door, not a latch and lever. What replaces the Sargent 8224?
The Sargent 8224 carries both a latchbolt and a deadbolt with lever trim. If the opening only needs the bolt, the Kaba Ilco 185 Series is a deadbolt function mortise lock supplied with no handing, and the Alarm Lock DL4500 Series is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad for 1-5/8 to 1-7/8 inch doors. Neither gives you the lever operation the 8224 provides for a room that people pass through.
26) Which mortise locks besides the Sargent 8224 are Grade 1 with a 3-hour fire rating?
The Sargent 8224 is Grade 1 and UL 10C positive pressure fire rated up to 3 hours with NFPA 80 compliance. Among comparable mortise units, the Schlage Electronics LEMD-GRW ENGAGE Series wireless mortise lock is Grade 1 with a 3 hour fire rating and a 125kHz proximity reader. The Falcon MA101 Grade 1 heavy-duty mortise passage lock is also fire rated. Verify the door and frame label before specifying any of them.
27) How does the Sargent 8224 compare to the Schlage LE Series mobile-enabled mortise lock for an apartment door?
The Schlage Electronics LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with push button and LED covering privacy, office and apartment functions, 3 hour fire rating, for 1-3/4 inch doors. The Sargent 8224 is Grade 1, mechanical and keyed, on the same 1-3/4 inch door thickness. The LE unit brings mobile credentials to the opening; the 8224 gives the higher operational grade and runs on keys with no battery or enrollment.
28) What mortise lock should I use for a main entrance or office door instead of the Sargent 8224 room door function?
Room door function is what the Sargent 8224 does. For a front entrance or office opening, the Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with auxiliary deadlatch on a 1-3/4 inch door, and the Hager 3850E 3800 Series is a Grade 1 office mortise lock with lever and escutcheon on a 2-3/4 inch backset, non-keyed, for 1-3/4 to 2-1/2 inch doors. The Baldwin 6301LS is an entry/apartment lever by lever mortise lock body on a 2-1/2 inch backset for doors 1-3/4 inch and over.
29) Is a cylindrical lock like the Schlage PC10 an alternative to the Sargent 8224?
They prep the door differently. The Sargent 8224 is a mortise lock, which needs a rectangular pocket cut into the door edge. The Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with rose, for 1-3/4 inch doors, and it goes into bored holes. A cylindrical unit will not drop into a mortise pocket, and swapping the other direction means filling and re-prepping the door edge.
30) Can I match the Sargent 8224 to the satin chrome or oil rubbed bronze hardware already in my building?
Sixteen finishes are available, so most existing schedules can be matched: 26D satin chrome and 32D satin stainless for typical commercial interiors, 10B dark oxidized satin bronze oil rubbed and 10BE or 10BL for bronze schedules, 03 bright brass and 04 satin brass, 09 and 10 bronze, 14 and 15 nickel, 20D dark statuary bronze, 26 bright chrome, 32 bright stainless, plus BSP black and WSP white suede powder coat. Match the BHMA finish code on your existing hardware rather than the description.
31) Is there an installation template for prepping doors for the Sargent 7800 and 8200 mortise lock?
Sargent publishes a door prep template covering the 7800 and 8200 Series with all sectional rose trims and escutcheon trims, plus a full 7800/8200 mortise lock catalog. Use the template to lay out the mortise pocket, the 2-3/4 inch backset spindle and cylinder holes, and the trim through-bolt locations before you cut.
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Does the Sargent 8224 LE1A 26D come with a warranty?
Absolutely. The Sargent 8224 LE1A 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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