Sargent 8247 Heavy Duty Single...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,937.25
$1,364.13
Sargent Sargent 8200 Series - (8247) Front Door or Apartment Corridor Rose Trim, Heavy Duty Single Cylinder with Deadbolt Mortise Lock, Grade 1 SGT-8247

Sargent 8247 Heavy Duty Single Cylinder Mortise Lock with Deadbolt - Grade 1 Commercial Security

(No reviews yet) Write a Review

Model: 8247 EA 26D
From the 8200 Series Collection
$1,937.25
$1,364.13
Selected Finish is
Selected Rose is
Selected Lever is

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

$1,937.25
$1,364.13
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 8247 Heavy Duty Single Cylinder Mortise Lock with Deadbolt and EcoFlex Technology - Grade 1 Commercial

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8247 mortise lock represents the industry benchmark for commercial security hardware, delivering maximum security, performance, and durability with high-quality components. This heavy duty single cylinder mortise lock features a multi-functional lock body with 2 3/4" backset depth, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw for reliable operation. The lock operates from 12 to 24VDC with EcoFlex technology that reduces power consumption up to 96%, and has been UL cycle tested at 16 million cycles for exceptional durability.

Professional Features & Benefits

  • Precision Construction: 2 3/4" backset depth with 3/4" latchbolt throw and 1 3/4" door thickness compatibility for versatile installation requirements.
  • Heavy-Duty Durability: UL Cycle tested at 16 million cycles (Verification ID: V584148) for long-term reliability in high-traffic commercial applications.
  • EcoFlex Energy Efficiency: Advanced technology on all electromechanical functions creates up to 89% energy savings while maintaining reliable 12 to 24VDC operation.
  • Grade 1 Security Rating: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification with multiple security features providing resistance against vandalism and unauthorized entry.
  • Universal Key System Integration: Integrates with all SARGENT key systems including Degree, Signature, KESO, and XC for comprehensive access control flexibility.
  • Fire-Rated Performance: UL 10C Fire-Rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Comprehensive Function Options: Available in 56 different functions including electromechanical, security and monitoring configurations for diverse application needs.
  • 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) 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

  • 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 mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in independent UL testing. The 10-year limited warranty with 2-year electrical component coverage demonstrates the manufacturer's confidence in long-term performance. Engineered for demanding commercial applications where dependable security and operational reliability are essential.

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

Sargent 8247 EA 26D – Frequently Asked Questions

1) Will the Sargent 8247 mortise lock fit a 1-3/4 inch commercial door with a 2-3/4 inch backset prep?
That is exactly the prep the 8247 is built for. The lock body uses a 2-3/4 inch backset and is set up for 1-3/4 inch door thickness, which is the standard commercial door. If your existing mortise pocket was cut for a 2-3/8 inch backset, or the door is thicker or thinner than 1-3/4 inches, this is the wrong body for that opening.
2) Will the 8247 latch throw and deadbolt work with a standard existing mortise strike?
The 8247 latchbolt throws 3/4 inch, which is the normal throw for a heavy duty commercial mortise latch, so it engages a standard ANSI mortise strike lip and keeper. The body also carries a deadbolt, so the frame needs the deadbolt keeper cut as well. If the frame you are working on was prepped for a latch-only mortise lock, that pocket has to be opened up for the bolt before this one will secure.
3) What do I have to specify when ordering a Sargent 8247 mortise lock?
Four things beyond the function. Cylinder: standard cylinder, less cylinder, 70 prep for small format interchangeable core less core, or 60 prep for large format interchangeable core less core. Keying: keyed different, keyed alike, or to a key code (pick none if you took the less cylinder route). Lever: A, B, E, F, J, L, P or W. Rose: E at 3-1/16 inch, L at 3-1/2 inch, LN at 2 inch, or O at 2-3/4 inch. Then the finish. Miss the cylinder or keying line and the order cannot be built.
4) Can I order the Sargent 8247 to work on my building's existing Sargent master key system?
It integrates with every SARGENT key system, including Degree, Signature, KESO and XC, so it drops into an existing Sargent masterkey hierarchy. If your keyway is already set, order keyed alike or supply the key code. If you are running interchangeable cores from your own stock instead, order the 70 prep for small format or the 60 prep for large format, both less core, and stuff your own.
5) Is the Sargent 8247 an electronic lock, or does it need power run to the door?
Mechanical, keyed, no power required. The 8247 is a key and lever mortise lock, so there is no wiring, no transfer hinge and no power supply to spec. If you need an electrified corridor lock, the Schlage L9092EU with electric lock/unlock outside lever and request-to-exit at 12/24VDC is a corridor function that does take power, and the BEST 45HW wired electromechanical mortise body runs 12V/24V as well.
6) Which mortise locks besides the Sargent 8247 carry a 3 hour fire rating for a rated corridor opening?
The Sargent 8247 is UL 10C fire-rated up to 3 hours with NFPA 80 compliance. Among the peers, the Schlage Electronics LEMD-GRW carries a 3 hour fire rating as a Grade 1 ENGAGE Series wireless mortise lock, and the Schlage Electronics LEBMB-ADD carries a 3 hour fire rating as a Grade 2 mortise lock for 1-3/4 inch doors. The Falcon MA101 is a Grade 1 heavy duty mortise passage lock listed as fire rated. Grade and function differ across the three, so confirm the door schedule calls for the function you are buying, not just the rating.
7) What is the closest cross-brand equivalent to a Sargent 8247 mortise lock for a keyed apartment corridor door?
The Sargent 8247 is a Grade 1 mortise lock built for the front door or apartment corridor function with a single cylinder and deadbolt. The nearest cross-brand match on function is the Baldwin 6301LS, a lever by lever entry/apartment mortise lock body with a 2-1/2 inch backset for doors 1-3/4 inch and over. The Cal-Royal NM8050 is a heavy duty Grade 1 entrance/office mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors, which covers a keyed entrance opening with a different function designation. Note the backset difference: the Sargent 8247 uses a 2-3/4 inch backset, while the Baldwin 6301LS is a 2-1/2 inch backset, so the pocket and face prep are not the same.
8) Which mortise lock should be used instead of the Sargent 8247 on a classroom door?
The Sargent 8247 is set up as a front door or apartment corridor function, not a classroom function. For a classroom opening, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series for 1-3/4 inch doors, and the Cal-Royal NM8070 is a heavy duty Grade 1 classroom mortise lockset with an auxiliary deadlatch, also for 1-3/4 inch doors. Both hold the same Grade 1 rating as the 8247 while changing the function to classroom.
9) What is the difference between the Sargent 8247 and a storeroom function mortise lock like the Accentra 8805FL?
The Sargent 8247 carries a front door or apartment corridor function with a single cylinder and a deadbolt, so the occupant has a throwable bolt at the unit door. The Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset offered with an interchangeable core option. Storeroom function suits a door that stays locked from the outside and is entered by key, such as a mechanical or supply room, rather than an apartment entry where a deadbolt is thrown from inside.
10) What mortise lock matches the 12 to 24VDC operation of the Sargent 8247 for an access control tie-in?
The Sargent 8247 operates from 12 to 24VDC with EcoFlex technology on its electromechanical functions. On the peer side, the BEST 45HW is a heavy duty wired electromechanical mortise lock with 12V/24V operation, and the Schlage L9092EU 03A is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit and 12/24VDC on 1-3/4 inch doors. The Schlage carries a corridor function, the same function family as the 8247. The Command Access ML190 is a heavy-duty motorized mortise lock with field selectable EL/EU operation on 24VDC in a storeroom function.
11) Is a Schlage L0170 dummy trim or an Emtek 3102 a substitute for a Sargent 8247?
No. The Sargent 8247 is a keyed working mortise lock with a deadbolt. The Schlage L0170 is half dummy trim, a Grade 1 mortise non-keyed lever lock in a dummy function for 1-3/4 inch doors, and the Emtek 3102 Memphis is a mortise entrance lockset in a dummy function. Dummy trim is fixed and does not latch or lock; it dresses an inactive leaf. Ordering one against an 8247 line item leaves the opening with no latching hardware.
12) Will a Sargent 8247 work on a 1-5/8 inch door, and what fits if it does not?
The Sargent 8247 is built for 1-3/4 inch door thickness. For a thinner door, the Alarm Lock DL2700CR Trilogy T2 covers 1-5/8 inch to 1-7/8 inch as a Grade 1 classroom function electronic mortise lock with a weatherproof design, and the DL3500CR covers the same 1-5/8 inch to 1-7/8 inch range as a Grade 1 classroom electronic mortise lock with 300 user codes. For a thicker door, the Hager 3810E takes 1-3/4 inch to 2-1/2 inch in a passage function with escutcheon and a 2-3/4 inch backset.
13) What should be specified instead of a Sargent 8247 on a behavioral health or ligature resistant opening?
The Sargent 8247 uses a lever handle with rose trim in E, L, LN, and O rose sizes, which is standard commercial trim rather than anti-ligature trim. For a ligature resistant opening, the TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in a 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. All three are passage function, so the keyed control the 8247 provides is not carried over.
14) Is a Kaba Ilco 185 mortise deadbolt an alternative to the Sargent 8247 with deadbolt?
They do different jobs. The Sargent 8247 is a single cylinder mortise lock that combines a latch operated by the lever with a deadbolt in one body, with a 3/4 inch latchbolt throw. The Kaba Ilco 185 Series is a deadbolt function mortise lock with no handing, and the Alarm Lock DL4500 is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad for doors 1-5/8 inch to 1-7/8 inch. A deadbolt-only unit gives no latching, so the door needs separate latching hardware to stay closed, whereas the 8247 handles both from one mortise pocket.
15) Can a Schlage PC10 cylindrical lock go where a Sargent 8247 was removed?
No. The Sargent 8247 is a mortise lock, which sits in a rectangular pocket routed 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 a cylindrical lock installs through a round cross bore instead. Swapping from mortise to cylindrical means the mortise pocket has to be filled or the door replaced. If the door is already prepped for mortise, stay with a mortise body such as the Schlage PM010 passage latch mortise lock or the Hager 3810S.
16) I need to match the other doors in the building. What finishes and roses does the 8247 come in?
Sixteen finishes, from 26D satin chrome and 32D satin stainless (the two you will find on most commercial corridors) through 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B, 10BE and 10BL dark oxidized bronze, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze, 26 bright chrome, 32 bright stainless, plus BSP black and WSP white suede powder coat. Rose size is a separate choice, so a small LN rose at 2 inch will cover a different footprint than the 3-1/2 inch L rose if you are hiding old prep marks.
17) Should I use a mortise lock like the Sargent 8247 or a cylindrical lockset on my corridor doors?
A mortise body goes into a pocket routed into the door edge and carries both a latchbolt and a deadbolt in one case, which is why it is the standard for apartment and hotel corridor doors that need bolt security. A cylindrical lockset like the Schlage PC10 bores through the face instead and has no deadbolt. If your doors are already mortise prepped, stay mortise: converting a mortise pocket to a bored prep, or the reverse, means new doors or filler plates.
18) Is the Sargent 8247 heavy duty enough for a high traffic apartment or student housing corridor?
Heavy duty, commercial, and UL cycle tested at 16 million cycles, which is well beyond what a residential-grade body is built for. It carries ANSI/BHMA A156.13 Series 1000 Operational Grade 1, the top operational grade for mortise locks, so it holds up in student housing, healthcare and multi-tenant residential where the same door gets used hundreds of times a day.
19) Can I order the Sargent 8247 without a cylinder so I can install my own cores?
Yes, and there are three ways to do it. Less cylinder ships the lock bare for your own mortise cylinder. The 70 option is prepped for a small format interchangeable core, less core. The 60 option is prepped for a large format interchangeable core, less core. On any of those, set keying to none. Facilities standardizing on one core platform across a building usually take 70 or 60 and pin from their own stock.
20) Can an electronic mortise lock replace a Sargent 8247 on an apartment corridor door?
The Sargent 8247 is a mechanical, non-electronic keyed mortise lock with a lever handle. Electronic mortise locks change how the door is credentialed rather than how it is prepped. The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock in a back to back configuration, and the Schlage Electronics LEBMB-ADD is a mobile-enabled Grade 2 mortise lock with push button and LED covering privacy, office, and apartment functions on 1-3/4 inch doors with a 3 hour fire rating. The Accentra NTM623-NR nexTouch Generation 3 is a Grade 1 mortise lock with a capacitive touchscreen keypad, no deadbolt, with cylinder override, so it drops the deadbolt the 8247 includes.
21) What is a simpler alternative to the Sargent 8247 for a door that does not need to be keyed?
The Sargent 8247 is a keyed single cylinder mortise lock. If the opening is a non-keyed hall, closet, or passage door, the Schlage PM010 is a Grade 1 passage latch mortise lock, non-keyed, for 1-3/4 inch doors, and the Falcon MA101 is a Grade 1 heavy duty mortise passage lock in the MA Series with field reversible operation and a fire rating. Hager also builds the 3810S, a Grade 1 passage mortise lock with rose and a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch, which matches the 8247 backset of 2-3/4 inch. For a bed or bath door, the Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset.
22) How does the Sargent 8247 compare with a mortise lock body sold without trim, like the BEST 45H?
The Sargent 8247 is supplied as a complete lockset with lever and rose trim, offered in A, B, E, F, J, L, P, and W levers and E, L, LN, and O roses. The BEST 45H is a heavy duty mortise lock body in a public entrance function with field reversible operation, and the 45HCA is a heavy duty mortise lockbody with an intruder function, both sold as lock bodies that need trim selected separately. The Baldwin 6310 is likewise a mortise lock body, knob by knob, in an entrance/storeroom function with a 2-1/2 inch backset for doors 1-3/8 inch and over. If the existing trim is being reused, a body-only peer is the closer buy; if the whole opening is being redone, the 8247 arrives with its lever and rose.
23) For a standardized apartment building where every unit door needs the same lock, does the Sargent 8247 or a Cal-Royal NM8440 fit better?
The Sargent 8247 is a commercial heavy duty Grade 1 keyed mortise lock in the front door or apartment corridor function, keyed different, keyed alike, or to a key code, and it integrates with the Sargent Degree, Signature, KESO, and XC key systems, which is what carries a master key plan across a building. The Cal-Royal NM8440 is a heavy duty Grade 1 privacy mortise lockset with a deadbolt for 1-3/4 inch doors; privacy function has no keyed outside control, so it suits a bath or interior unit door rather than the unit entry. For unit entries where a key plan matters, the keyed 8247 or the Cal-Royal NM8050 entrance/office lockset are the functional matches.
24) What mortise lock adds credential-based access to a corridor door if the Sargent 8247 is mechanical only?
The Sargent 8247 is a mechanical keyed lock and is not an electronic product. For RFID or wireless credentials on a similar heavy duty opening, the TownSteel FME-2000 is a Grade 1 heavy duty mortise lockset with RFID technology in a classroom function for 1-3/4 inch doors, and the FME-4000 adds an electronic intruder classroom function with RFID. The Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and a mobile enabled deadbolt with LED in Greenwich trim, right hand, with a 3 hour fire rating, which is the peer that keeps a deadbolt like the 8247 does.
How fast can I get the Sargent 8247 EA 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 8247 EA 26D come with a warranty?
Absolutely. The Sargent 8247 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 8247 EA 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 8247 EA 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.
!