Sargent 8248 Storeroom Functio...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,890.51
$1,433.82
Sargent Sargent 8200 Series - (8248) Storeroom Function Rose Trim, Heavy Duty Double Cylinder with Deadbolt Mortise Lock, Grade 1 SGT-8248

Sargent 8248 Storeroom Function Heavy Duty Double Cylinder Mortise Lock with Deadbolt - Grade 1

(No reviews yet) Write a Review

Model: 8248 EA 26D
From the 8200 Series Collection
$1,890.51
$1,433.82
Selected Finish is
Selected Rose is
Selected Lever is

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

$1,890.51
$1,433.82
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 8248 Grade 1 Heavy Duty Double Cylinder Mortise Lock with Deadbolt - Storeroom Function

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8248 represents the industry benchmark for maximum security, performance, and durability in commercial mortise locks. This Grade 1 storeroom function lock features heavy-duty construction with 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw. The multi-functional lock body integrates with all SARGENT key systems including Degree, Signature, KESO, and XC, while offering field-reversible handing for installation flexibility. UL 10C fire-rated up to 3 hours with comprehensive ANSI/BHMA A156.13 Series 1000 certification ensures code compliance in demanding applications.

Professional Features & Benefits

  • Exceptional Durability Testing: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched longevity in high-traffic commercial environments.
  • Heavy-Duty Construction: Grade 1 operational rating with robust lever-style design engineered to far exceed independently verified testing standards.
  • Universal Key System Integration: Compatible with all SARGENT key systems including Degree, Signature, KESO, and XC for seamless integration with existing security infrastructure.
  • Precision Dimensions: 2 3/4" backset with 1 3/4" door thickness compatibility and 3/4" latchbolt throw for reliable operation in standard commercial door preparations.
  • EcoFlex Energy Technology: Advanced electromechanical functions utilize EcoFlex technology creating up to 89% energy savings and 96% power consumption reduction on 12-24VDC operation.
  • Comprehensive Fire Rating: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Field-Reversible Configuration: Handing can be changed on-site with curved lip strike for installation flexibility across various door configurations.
  • Manufacturer Warranty: 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. Verify electrical requirements match available power supply. Confirm 12-24VDC voltage and current capacity before proceeding with electromechanical functions.
  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, electromechanical 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
  • Government and Municipal Buildings
  • Industrial Facility Access Points
  • Multi-Tenant Residential Properties
  • Retail Establishments

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 with multiple security features and comprehensive certifications including ANSI/BHMA A156.13 Series 1000 Grade 1, this lock provides the strength, reliability, and flexibility essential for critical access control installations.

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 EA 26D – Frequently Asked Questions

1) What does storeroom function mean on the Sargent 8248, and who is it for?
Storeroom function means the outside lever is always locked. Entry is by key only, and the inside lever always retracts the latch for free egress, so the door cannot be left unsecured by accident. That is why it gets used on mechanical rooms, supply closets, IT rooms, and tenant storage. The 8248 adds a deadbolt and is double cylinder, so it is keyed on both sides for the bolt.
2) Is the Sargent 8248 fire rated for a 3 hour opening?
Yes. The 8248 is UL 10C positive pressure fire rated up to 3 hours and meets NFPA 80. It also carries ANSI/BHMA A156.13 Series 1000 Grade 1 certification. One caution for fire doors: a double cylinder deadbolt is key operated on both sides, so confirm your local authority permits it on that specific opening.
3) Will the 8248 latch into the strike that is already in my frame?
The latchbolt throws 3/4 inch and ships with a curved lip strike. On an existing ANSI mortise frame prep with a standard 2-3/4 inch backset lock body, it drops in. If your current frame carries a non-standard or older strike cutout, plan on replacing the strike, and remember the 8248 also needs a deadbolt pocket in the frame since it is a deadbolt lock.
4) What do I have to choose when ordering a Sargent 8248 besides the finish?
Four choices. Lever style (A, B, E, F, J, L, P or W), rose style (E rose 3-1/16 inch, L rose 3-1/2 inch, LN rose 2 inch, or O rose 2-3/4 inch), cylinder (standard cylinder, less cylinder, 70 for small format interchangeable core prep less core, or 60 for large format IC prep less core), and keying (keyed different, keyed alike, or to a supplied key code). If you pick less cylinder, select None for keying.
5) Can the Sargent 8248 be keyed into my existing Sargent master key system?
Yes. The 8248 lock body works with all Sargent key systems, including Degree, Signature, KESO and XC. If you are running interchangeable core, order the 70 prep for small format or the 60 prep for large format and supply your own cores. Keyed alike, keyed different, or to an existing key code are all orderable.
6) What mortise lock works on a 1-5/8 inch thick door, since the Sargent 8248 is specified for 1-3/4 inch?
The Sargent 8248 is built for 1-3/4 inch door thickness. For thinner doors, the Alarm Lock DL2700CR and DL3500CR Trilogy electronic classroom mortise locks both cover 1-5/8 to 1-7/8 inch, as does the DL4500 electronic mortise deadbolt. The Baldwin 6310 mortise lock body covers 1-3/8 inch and over. Note the Alarm Lock units are electronic keypad locks with classroom or deadbolt function rather than mechanical storeroom locks.
7) If I need the door to unlock electrically from an access control panel, does the Sargent 8248 do that?
The 8248 is a mechanical storeroom lock, not an electrified one. For an electrically controlled mortise opening, the Command Access ML190 is a heavy-duty storeroom function motorized mortise lock with field selectable fail safe or fail secure operation on 24VDC, the BEST 45HW 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 on 12/24VDC.
8) What is the closest Grade 1 storeroom mortise lock equivalent to the Sargent 8248?
The Sargent 8248 is a Grade 1 storeroom function mortise lock in the 8200 Series. Two direct cross-brand counterparts by grade and function are the Accentra 8805FL, a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080, a Grade 1 storeroom mortise lockset with an interchangeable core option for doors 1-3/4 inch thick. The difference to weigh is the deadbolt: the 8248 is a double cylinder storeroom lock with deadbolt, while the 8805FL and NM8080 are storeroom locksets without a deadbolt called out.
9) I need a classroom function mortise lock instead of a storeroom lock - what should I order?
The Sargent 8248 is built as a storeroom function lock, so for a classroom opening look at a Grade 1 classroom mortise lock: the Corbin Russwin ML2003 in the ML2000 Series for 1-3/4 inch doors, or the Cal-Royal NM8070 heavy duty Grade 1 classroom mortise lockset with auxiliary deadlatch, also for 1-3/4 inch doors. The Marks USA LA318GJ is a classroom security indicator mortise lockset with an ANSI strike and steel escutcheon if you want visual status indication at the door.
10) What is the electronic or credential-based alternative to the Sargent 8248 mortise lock?
The Sargent 8248 is a mechanical, non-electronic lock. If the opening needs access control at the door instead of a key, the Accentra nexTouch NTM623-NR is a Grade 1 mortise lock with a capacitive touchscreen keypad and cylinder override, the Schlage LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and a 3 hour fire rating, and the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID technology for 1-3/4 inch doors. The BEST 45HZ EZ Series is an electronic keypad mortise lock with key override.
11) Can I use the Sargent 8248 on an aluminum storefront or narrow stile glass door?
The 8248 is a 2-3/4 inch backset mortise lock for 1-3/4 inch doors and is not a narrow stile part. For aluminum and glass openings, the Alarm Lock DL1300NW is a Trilogy Networx wireless electronic mortise lock with keypad built for Adams Rite deadlatches, the Dormakaba E-Plex 2066 is a pushbutton keyless mortise lock in a wide stile configuration, and the Kaba Ilco BR Series is a glass door bottom rail lock.
12) Do I have to specify handing when ordering the Sargent 8248 mortise lock?
No. The 8248 lock body is field reversible, so the handing can be changed on site. That is useful for a property manager stocking spares across a building, since one lock covers left and right hand openings.
13) What is the difference between the Sargent 8248 and a plain storeroom mortise lock without a deadbolt?
The 8248 carries a deadbolt in addition to the latch, and it is double cylinder, so the bolt is thrown and retracted by key from both sides. A straight storeroom mortise lock like the Cal-Royal NM8080 or the Accentra 8805FL locks the outside lever only, with no separate bolt. Choose the 8248 when you want a second point of security on a storage or tenant door after hours; choose a latch-only storeroom lock when free inside egress without any key must be guaranteed at all times.
14) How durable is the Sargent 8200 mortise lock in a high traffic building?
It completed UL's Cycle Above and Beyond test at 16 million cycles, verification ID V584148, and carries a Grade 1 operational rating under ANSI/BHMA A156.13 Series 1000. That is the heavy duty tier, which is what you want on school corridors, hospital service doors, and high turnover multi-family openings.
15) If the 8248 will not work on my door thickness, what mortise lock should I look at instead?
The 8248 is a 1-3/4 inch door lock. For thicker doors, the Hager 3800 Series mortise locks cover 1-3/4 inch through 2-1/2 inch, and the Baldwin 6310 mortise lock body is listed for 1-3/8 inch and over with a 2-1/2 inch backset. Note those two are different functions, so match the function to your opening as well as the thickness.
16) Is there a non-keyed mortise lock option if the opening does not need a cylinder?
The Sargent 8248 is a keyed double cylinder lock, so it is not the part for a free-swinging or privacy opening. For passage, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, and the Hager 3810S is a 3800 Series passage mortise lock with rose and 2-3/4 inch backset. For privacy, the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt and the Hager 3840S is a 3800 Series privacy mortise lock with 2-3/4 inch backset.
17) Can I buy just a mortise lock body without trim, like the Sargent 8248?
The Sargent 8248 ships as a complete lever lock with a selectable lever and rose. If you already have trim on the door and need only the chassis, the BEST 45H Series is a heavy duty mortise lock body with public entrance function and field reversible operation, and the BEST 45HCA Series is a heavy duty mortise lockbody with intruder function. Confirm your existing trim matches the lock body before ordering, since function differs from the 8248 storeroom configuration.
18) Will a Baldwin 6310 mortise lock substitute for the Sargent 8248?
Not as a like-for-like swap. The Baldwin 6310 entry/storeroom mortise lock body uses a 2-1/2 inch backset and is offered knob by knob, with a lever by lever version as the 6310190RRLS in right hand reverse, covering doors 1-3/8 inch and over. The Sargent 8248 uses a 2-3/4 inch backset with field reversible handing, so the door mortise and cross-bore prep are not interchangeable between them.
19) Is a deadbolt-only mortise lock an alternative to the Sargent 8248 double cylinder lock?
They solve different problems. The 8248 combines a keyed storeroom latch with a deadbolt in one lock body. A deadbolt-only option is the Kaba Ilco 185 Series mortise deadbolt, which requires no handing, or the Alarm Lock DL4500 Grade 1 electronic mortise deadbolt with 2,000 user codes for doors 1-5/8 to 1-7/8 inch. Choose a deadbolt-only body only if separate latching hardware is already on the door.
20) What mortise lockset should I use on a behavioral health door instead of a lever lock like the Sargent 8248?
The Sargent 8248 uses a standard lever trim, which is a ligature concern in behavioral health settings. For those openings the TownSteel MRX-A-01 is a Grade 1 heavy duty ligature resistant arch trim mortise lockset in satin stainless steel, the MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in stainless steel, both for 1-3/4 inch doors, and the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant. Note these named versions are passage function, not keyed storeroom.
21) Are the Emtek mortise entrance locksets a substitute for the Sargent 8248?
No. The Emtek Brisbane 3019, Memphis 3102, Hamilton 3104 and Manhattan 3106 mortise entrance locksets are dummy function, meaning they are non-operating trim with no latch or bolt action. The Sargent 8248 is a keyed Grade 1 commercial storeroom lock with a deadbolt. The Schlage L0170 is likewise a Grade 1 half dummy trim. Use a dummy only on an inactive leaf.
22) I need an office or entrance function mortise lock rather than storeroom - what is comparable?
The Sargent 8248 locks the lever at all times and is released only by key, which is storeroom behavior. If you want the outside lever to be lockable and unlockable at the door, the Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, the Hager 3850E is a 3800 Series Grade 1 office mortise lock with lever and escutcheon, non-keyed, on a 2-3/4 inch backset, and the Baldwin 6301LS is an entry/apartment lever by lever mortise lock body on a 2-1/2 inch backset.
23) Which mortise lock should I pick for a dormitory or multi-tenant door where I want keypad plus card credentials?
The Sargent 8248 is a mechanical keyed lock, so credential variety comes from the key system rather than the lock. For dual-credential openings, the Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card back-to-back mortise lock, the Dormakaba Saffire LX-I-M002 is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2, and the Schlage LE Series LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with push button and LED offering privacy, office and apartment functions on 1-3/4 inch doors with a 3 hour fire rating.
24) What is the difference between the Sargent 8248 and a lockdown or intruder function mortise lock?
The 8248 is a storeroom function lock: the outside lever stays locked and is released by key, with a deadbolt available from the inside cylinder. A lockdown-oriented alternative is the BEST 45HCA heavy duty mortise lockbody with intruder function, or the TownSteel FME-4000, a Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID for 1-3/4 inch doors. Intruder function is intended for securing a room from inside without stepping into the corridor.
25) Which finish should I order to match the rest of the hardware in my building?
The 8248 trim comes in 16 finishes: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized 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, BSP black suede powder coat and WSP white suede powder coat. For most commercial interiors, 26D satin chrome and 32D satin stainless are the two that match existing Grade 1 trim.
26) Is there an installation template for prepping the door for a Sargent 8200 mortise lock?
Yes. Sargent publishes a 7800 and 8200 Series mortise lock installation template covering all sectional rose trims and escutcheon trims, and the 7800/8200 mortise lock catalog carries the full function and trim detail. Pull the template before you cut the door, since the mortise pocket, cross bore and trim hole pattern all have to be laid out together.
27) Is there a cylindrical lock alternative if my door is not prepped for a mortise pocket?
The Sargent 8248 requires a mortise pocket in the door edge. If the door has a standard bored cross-bore instead, the Schlage PC10 is a Grade 1 non-keyed cylindrical passage lock with rose for 1-3/4 inch doors. Bear in mind that swapping from mortise to cylindrical changes the door prep entirely and the PC10 is passage function, not keyed storeroom, so it is a fit for openings that do not need to lock.
How fast can I get the Sargent 8248 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 8248 EA 26D come with a warranty?
Absolutely. The Sargent 8248 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 8248 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 8248 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.
!