Sargent 8248-ET Store Door Fun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,975.38
$1,498.20
Sargent Sargent 8200 Series - (8248) Store Door Function Escutcheon Trim, Heavy Duty Double Cylinder with Deadbolt Mortise Lock, Grade 1 SGT-8248-ET

Sargent 8248-ET Store Door Function Heavy Duty Double Cylinder Mortise Lock with Deadbolt - Grade 1

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Model: 8248 LE1A BSP
From the 8200 Series Collection
$1,975.38
$1,498.20
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Selected Lever is
Selected Escutcheon is

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

$1,975.38
$1,498.20
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Sargent 8200 Series Grade 1 Heavy Duty Double Cylinder Mortise Lock with Deadbolt

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8200 Series mortise lock represents the industry benchmark for commercial mortise locks, delivering maximum security, performance, and durability with high-quality components. This Grade 1 heavy duty double cylinder lock features a 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw for robust commercial applications. The multi-functional lock body integrates with all SARGENT key systems including Degree, Signature, KESO, and XC, while exceeding independently verified testing with UL cycle testing completed at 16 million cycles.

Professional Features & Benefits

  • Precise Door Specifications: Standard 2 3/4" backset depth with 1 3/4" door thickness and 3/4" latchbolt throw for reliable operation and secure latching.
  • Exceptional Durability Testing: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched reliability in high-traffic commercial applications.
  • Grade 1 Heavy-Duty Construction: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification with patented design and construction for maximum strength and security.
  • Universal Key System Integration: Integrates with all SARGENT key systems (Degree, Signature, KESO, and XC) with 6 pin or 7 pin cylinder options for flexible security management.
  • Fire-Rated Performance: UL 10C Fire-Rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Field-Reversible Handing: Field reversible design allows on-site configuration changes, reducing inventory requirements and installation complexity.
  • Multi-Functional Versatility: Available in 56 different functions including electromechanical, security and monitoring options with multifunctional lockbody for easy function switching.
  • Comprehensive Warranty Coverage: 10-year limited warranty with 2-year coverage on electrical components for long-term protection and confidence.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including 1 3/4" door thickness, 2 3/4" backset, and handing as applicable to this mortise lock.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper mortise preparation.
  3. Prepare door and frame by drilling required holes and routing mortise cavity as specified in manufacturer instructions.
  4. Install all mounting hardware including strike plate with curved lip configuration and secure the lock body to door per manufacturer torque specifications.
  5. Adjust operational components including latchbolt throw and deadbolt for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function of both latchbolt and deadbolt mechanisms and make final adjustments as needed. Refer to manufacturer documentation for complete installation details 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 patented design and construction rated for 16 million cycles in UL testing. The 10-year limited warranty with 2-year electrical component coverage provides comprehensive protection for demanding commercial applications. Engineered as the industry benchmark with Grade 1 certification and fire-rated performance up to 3 hours, this lock ensures dependable security where reliable performance is essential.

Product Specs

Series:
8200 Series
Grade:
Grade 1
Keyed Function:
Double Cylinder
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Storeroom
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Storeroom
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent 8248 LE1A BSP – Frequently Asked Questions

1) Will the Sargent 8248 mortise lock fit a 1-3/4 inch commercial door?
Yes. The Sargent 8200 Series 8248 is built for 1-3/4 inch door thickness with a 2-3/4 inch backset, which is the standard commercial mortise prep. Route the mortise pocket and bore the trim holes from the 7800/8200 Series installation template before you cut anything, since the escutcheon trim footprint changes the face holes.
2) What does the 8248 store door function actually do?
It is a double cylinder storeroom (store door) function with a deadbolt. Key operates from both sides, so the deadbolt is thrown and retracted by key inside and out, and the outside lever stays locked. That is the setup for a retail back-of-house or stockroom door where you do not want anyone throwing or releasing the bolt without a key. If your opening needs free egress by turning the inside lever at all times, this is the wrong function for it.
3) Will the 8248 latch into my existing ANSI mortise strike?
The latchbolt throws 3/4 inch and the lock uses a 2-3/4 inch backset, so it drops into a standard commercial mortise frame prep. The lock ships with a curved lip strike; if your frame lip projection is different from what is there now, plan on swapping the strike rather than shimming the lock.
4) Can this Sargent mortise lock go on a fire rated door?
Yes. The 8200 Series is UL 10C fire rated up to 3 hours and complies with NFPA 80, so it is usable on rated stair, corridor, and tenant separation openings. It also carries ANSI/BHMA A156.13 Series 1000 Operational Grade 1.
5) What do I have to specify when ordering the Sargent 8248-ET mortise lock?
Four things beyond the function. Escutcheon trim style (LE1, LS, LW1, or WT), lever design (A, B, E, F, J, L, P, or W), finish, and the cylinder and keying. Cylinder choice is standard cylinder, less cylinder, 70 prep for small format interchangeable core less core, or 60 prep for large format IC less core. Keying is keyed different, keyed alike, or to a supplied key code; pick none if you are ordering less cylinder. Remember it is a double cylinder function, so it takes two cylinders per door.
6) Can I key this Sargent lock into my existing building master key system?
The 8200 Series lock body works with all Sargent key systems, including Degree, Signature, KESO, and XC, with 6 pin or 7 pin cylinder options. If the building already runs a Sargent system, order less cylinder or with the 60 or 70 interchangeable core prep and have your locksmith install cores off your existing keyway.
7) What is the closest Grade 1 storeroom mortise lock alternative to the Sargent 8248-ET?
The Accentra 8805FL is the nearest match in function and grade: it is a Grade 1 storeroom mortise lock in the 8800 Series, supplied with the Arcadia lever. The Cal-Royal NM8080 is also a Grade 1 storeroom mortise lockset and offers an interchangeable core option, fitted to 1-3/4 inch doors. The difference to weigh is the deadbolt: the Sargent 8248-ET is a double cylinder storeroom lock with a deadbolt in the same body, while the 8805FL and NM8080 are storeroom latch functions without one.
8) Will the Sargent 8248-ET work on a narrow stile aluminum storefront door?
No - the Sargent 8248-ET is built for 1-3/4 inch doors with a 2-3/4 inch backset and escutcheon trim, which is standard commercial door prep rather than storefront stile prep. For aluminum storefront, the Alarm Lock DL1300NW is a Trilogy Networx wireless electronic mortise lock with keypad made for Adams Rite deadlatches, and the Kaba Ilco BR Series is a glass door bottom rail lock. The Dormakaba E-Plex 2066 electronic pushbutton keyless mortise lock is a wide stile product.
9) Do I have to order the Sargent 8248 handed?
No. The 8200 Series lock body is field reversible, so one lock covers left and right hand openings and you can flip it on site. That is why facilities standardizing across a building can stock a single part instead of two.
10) Is this lock heavy duty enough for a high traffic entrance?
Grade 1, heavy duty, and UL cycle tested at 16 million cycles under the Above and Beyond program (Verification ID V584148). For a school corridor, hospital wing, or retail entry that sees constant use, that cycle number is the figure to quote in a submittal.
11) Is the Sargent 8248 an electronic or access control lock?
No, it is a purely mechanical keyed mortise lock. If you want credential or keypad control at the same opening, we carry electronic mortise options such as the Dormakaba E-Plex E5086 Grade 1 pushbutton/card back to back mortise lock, the TownSteel FME-2000 Grade 1 RFID mortise lockset for 1-3/4 inch doors, and the BEST 45HW wired electromechanical mortise lock running 12V or 24V.
12) Can I put this on a classroom or a privacy door instead?
Not with this function. The 8248 is a double cylinder store door lock, which means key control on both faces, and that is not what a classroom or restroom opening calls for. For classroom, look at the Corbin Russwin ML2003 Grade 1 mortise classroom lockset or the Cal-Royal NM8070, both for 1-3/4 inch doors. For privacy, the Cal-Royal NM8440 Grade 1 privacy mortise lockset with deadbolt or the Hager 3840S.
13) My doors are thicker than 1-3/4 inches. Is there a mortise lock that handles that?
The 8248 is specified at 1-3/4 inch door thickness. For thicker leaves, the Hager 3800 Series covers 1-3/4 to 2-1/2 inches on the 3810E escutcheon passage and 3850E office models, and the Baldwin 6310 mortise body is listed at 1-3/8 inch and over on a 2-1/2 inch backset. Note those are different functions, so match the function to your opening before ordering.
14) I need a mortise lock with a deadbolt but not a store door function - what else is there?
For a privacy opening, the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with a deadbolt for 1-3/4 inch doors. If you want the deadbolt on its own with electronic access, 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 to 1-7/8 inch thick. The Sargent 8248-ET differs from both in being a keyed double cylinder store door function, so the deadbolt is thrown and retracted by key from either side.
15) Is there a non-keyed mortise lock option if the opening does not need to lock?
Yes. 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 that is fire rated and field reversible. Hager's 3810E is a Grade 1 passage mortise lock with escutcheon and a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch thick, which matches the 2-3/4 inch backset the Sargent 8248-ET uses. The 8248-ET itself is a keyed lock, so a passage body is the route when no locking is wanted.
16) What mortise lock replaces the Sargent 8248-ET when the building wants keypad or credential access?
Several electronic mortise locks cover that. The Schlage 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. The TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors, and the BEST 45HZ EZ Series is an electronic keypad mortise lock with key override. The Sargent 8248-ET is a non-electronic mechanical lock, so switching to any of these changes how the door is credentialed and powered.
17) Which mortise locks look like a substitute for the Sargent 8248-ET but will not lock a door?
The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton, and 3106 Manhattan mortise entrance locksets are all dummy function, and the Schlage L0170 is a Grade 1 heavy duty mortise half dummy lever trim for 1-3/4 inch doors. They carry mortise entrance styling but have no working latch or bolt. The Sargent 8248-ET is a keyed double cylinder lock with a deadbolt, so a dummy trim is only appropriate on an inactive leaf.
18) Can I order just a mortise lock body instead of a complete lockset like the Sargent 8248-ET?
Yes. The BEST 45H Series is a heavy duty mortise lock body with public entrance function and field reversible operation, and the 45HCA Series is a heavy duty mortise lockbody with intruder function. Baldwin's 6310 is an entry/storeroom knob by knob mortise lock body with a 2-1/2 inch backset for doors 1-3/8 inch and over, with the 6310190RRLS the right hand reverse lever by lever version. Note the backset difference against the Sargent 8248-ET, which uses a 2-3/4 inch backset, and that the 8248-ET ships as a complete lockset with escutcheon trim and lever.
19) What is the alternative to the Sargent 8248-ET for a behavioral health or anti-ligature opening?
The TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel with passage function for 1-3/4 inch doors, and the MRX-A-01 is the satin stainless steel ligature resistant arch trim version, also passage. For a push/pull opening, 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, unlike the keyed store door function of the Sargent 8248-ET.
20) Is there an electrified mortise lock that matches the storeroom function of the Sargent 8248-ET?
The Command Access ML190 Series is a heavy-duty motorized mortise lock with storeroom function, field selectable EL/EU operation and 24VDC power. The BEST 45HW Series is a heavy duty wired electromechanical mortise lock with 12V/24V operation, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit and 12/24VDC. The Sargent 8248-ET is a mechanical lock with no electrical components, so any of these will require power transfer to the door.
21) What mortise lock should I look at for an office or entrance door rather than a storeroom door?
The Cal-Royal NM8050 is a Grade 1 heavy duty office/entrance mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors, and the Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon, non-keyed, on a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch thick. Baldwin's 6301LS is an entry/apartment lever by lever mortise lock body with a 2-1/2 inch backset for doors 1-3/4 inch and over. These differ from the Sargent 8248-ET, which is a storeroom function where the outside lever stays locked.
22) How does the Sargent 8248-ET compare to the Dormakaba E-Plex 5086 for a double cylinder opening?
The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card lock configured back to back, meaning credentials are presented on both sides. The Sargent 8248-ET achieves two-sided control mechanically as a Grade 1 double cylinder store door function with a deadbolt, keyed from both sides, with no power or programming required. Choose on whether the facility wants audit and code management or straight key control.
23) What finishes does the Sargent 8200 mortise lock come in to match the rest of my doors?
Sixteen finishes, from the common commercial ones (26D satin chrome, 32D satin stainless, 10B oil rubbed bronze, 15 satin nickel) through bright options (03 bright brass, 09 bright bronze, 14 bright nickel, 26 bright chrome, 32 bright stainless) and 04 satin brass, 10 satin bronze, 10BE, 10BL, 20D dark statuary bronze, plus BSP black and WSP white suede powder coat. Powder coat is worth a look if you are matching painted storefront hardware.
24) Does the 8248 come with lever trim or do I order that separately?
Lever trim is part of the order. The ET configuration is escutcheon trim, and you pick the escutcheon plate style (LE1, LS, LW1, WT) along with one of eight lever designs in the finish you need. Handle type is a lever, not a knob.
How fast can I get the Sargent 8248 LE1A BSP 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 8248 LE1A BSP come with a warranty?
Absolutely. The Sargent 8248 LE1A BSP 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 8248 LE1A BSP?
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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