Sargent 4874 Double Cylinder M...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$639.62
$434.12
Sargent 4874 Series - Double Cylinder Mortise Deadbolt

Sargent 4874 Double Cylinder Mortise Deadbolt with 2-3/4" Backset

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Model: SGT-4874 10BE
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$639.62
$434.12
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Sargent 4874 Series Double Cylinder Mortise Deadbolt with 2-3/4" Backset

Professional Mortise Deadbolt Security Solution

The Sargent 4874 Series Double Cylinder Mortise Deadbolt delivers maximum security with laminated stacked steel deadbolt construction and 2-3/4" backset depth for 1-3/4" door thickness applications. This UL Listed mortise lock features key operation from either side and includes 2 keys for comprehensive access control. Engineered for high-traffic facilities like schools and hospitals where reliable security performance is essential.

Professional Features & Benefits

  • Door Compatibility: Designed for 1-3/4" door thickness with 2-3/4" backset depth for standard commercial door applications.
  • Heavy-Duty Construction: Laminated stacked steel deadbolt provides maximum security and durability for demanding commercial environments.
  • Double Cylinder Operation: Key from either side operates deadbolt for enhanced security control and flexible access management.
  • Non-Handed Design: Universal installation eliminates handing requirements for simplified inventory and installation.
  • UL Listed Certification: UL and ULC Listed for code compliance and fire safety requirements in commercial applications.
  • Complete Strike System: Includes flat strike type with 1" latchbolt throw for secure engagement and reliable operation.
  • Manufacturer Warranty: 1-year limited warranty for added confidence and protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and/or frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function 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 mortise deadbolt products deliver professional-grade reliability with laminated stacked steel construction and UL Listed certification for demanding commercial applications. The 1-year limited warranty provides added confidence for high-traffic facility installations. Engineered for demanding commercial applications where dependable security performance is essential.

Product Specs

Series:
4870 Series
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise Locks and Trim
Commercial/Residential:
Commercial
Lock Function:
Double Cylinder
Keyed Function:
Double Cylinder
Lock Type:
Deadbolt
Product Model:
4874
Product Function:
Double Cylinder
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent SGT-4874 10BE – Frequently Asked Questions

1) Does the Sargent 4874 deadbolt need a key on both sides?
Yes, it is a double cylinder deadbolt, so it takes a key from either side to throw or retract the bolt. There is no thumbturn. That is the right choice where you do not want anyone exiting by reaching through glass, but many jurisdictions restrict double cylinder deadbolts on required egress doors. If you need free egress from the inside, order a single cylinder or thumbturn function instead.
2) Can I use the Sargent 4874 on an aluminum storefront door?
No. The 4874 is a 2-3/4 inch backset mortise deadbolt for 1-3/4 inch doors, which is a wide stile prep an aluminum storefront stile will not accept. For narrow stile glass doors, look at a deadlock built for that stile, or for a glass door bottom rail the Kaba Ilco BR Series bottom rail lock.
3) What is a comparable mechanical mortise deadbolt to the Sargent 4874 if I want a non-handed deadbolt lock body from another brand?
The Kaba Ilco 185 Series mortise lock is also a deadbolt function and is offered with no handing, which puts it in the same family of use as the Sargent 4874 double cylinder mortise deadbolt, itself a non-handed mortise deadbolt keyed from either side. Both are purely mechanical deadbolts rather than latching locksets, so neither provides a retracting latchbolt for normal passage - you would pair either with separate passage hardware if the opening also needs a handle.
4) I need key control from both sides on an ornamental iron door instead of a 1-3/4 inch commercial door - what should I use instead of the Sargent 4874?
The Sargent 4874 double cylinder mortise deadbolt is built for 1-3/4 inch door thickness. For narrow ornamental iron, the Marks USA 21AC and 22AC entrance double cylinder ornamental iron mortise locks are both listed for 1 inch door thickness and also use double cylinder keying. The Marks units are entrance locksets with a round knob, so they latch and operate as a handle set, while the Sargent 4874 is a deadbolt only.
5) If double cylinder keying is not allowed on my egress door, what mortise hardware should I specify instead of the Sargent 4874?
The Sargent 4874 requires a key from either side, which some egress paths do not permit. For a keyed mortise lockset that still allows free egress by handle, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors, and the Cal-Royal NM8050 is a Grade 1 office/entrance mortise lockset with auxiliary deadlatch, also for 1-3/4 inch doors. Both give secured outside access with lever operation from inside.
6) Do I have to specify handing when ordering the Sargent 4874?
No. The 4874 deadbolt is non-handed, so one part number covers left and right hand openings. For a property manager stocking spares across a building, that means a single line item on the shelf instead of two.
7) Is the Sargent 4874 deadbolt UL Listed for fire doors?
The 4874 is UL and ULC Listed. That listing is what an inspector looks for on a commercial opening, so it suits schools, hospitals and government buildings where the hardware schedule calls out listed product.
8) Are cylinders included with the Sargent 4874 mortise deadbolt?
The 4874 ships with 2 keys. Order the mortise cylinders to match the keyway and keying system already in the building, and specify a cylinder length that suits your door thickness and any wrap or escutcheon behind it. A locksmith keying a property to one system will want both cylinders on the existing keyway rather than the factory default.
9) Is there a keypad or electronic version of a mortise deadbolt if I do not want to carry keys?
The Sargent 4874 is mechanical and key operated on both sides. If you want code access on a deadbolt function instead, the Alarm Lock DL4500 Series is a Grade 1 electronic mortise deadbolt with 2,000 user codes, for doors 1-5/8 to 1-7/8 inches thick. That is a different door prep and a different budget, but it eliminates rekeying when tenants turn over.
10) What is the difference between the Sargent 4874 mortise deadbolt and a mortise lockset like the Cal-Royal NM8080?
The Sargent 4874 is a double cylinder mortise deadbolt - it throws a laminated stacked steel bolt with a 1 inch throw and is keyed from both sides, with no lever or knob. The Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset for 1-3/4 inch doors with an interchangeable core option, meaning it carries the trim and a latch for day-to-day entry. Openings that need both secure locking and normal handle operation typically take a lockset like the NM8080; the 4874 is the choice when a separate deadbolt is being added or replaced.
11) Is there an electronic alternative to the Sargent 4874 mortise deadbolt for keypad access?
The Alarm Lock DL4500 Series is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad, fitting doors 1-5/8 inch to 1-7/8 inch thick. It handles the same deadbolt duty as the Sargent 4874 but through codes rather than keys; the Sargent 4874 is mechanical and keyed from both sides, which suits facilities standardizing on an existing key system rather than managing user codes.
12) Will a Schlage PM010 work as a substitute for the Sargent 4874?
No. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors - it has no key cylinder and provides no locking at all. The Sargent 4874 is a double cylinder mortise deadbolt keyed from both sides. They share mortise prep as a category but not function; the PM010 is used on openings that need latching only.
13) For a classroom or hospital opening, is the Sargent 4874 the right mortise choice or is there something better suited?
The Sargent 4874 double cylinder mortise deadbolt is used in schools and hospitals where a keyed bolt is wanted on both sides. If the opening needs lockdown from inside the room, the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors, and the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors with an ANSI strike. Those give classroom function and visual status; the 4874 gives a deadbolt with key control on each face.
14) I need a mortise deadbolt that ties into an access control system - what replaces the Sargent 4874?
The Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile-enabled deadbolt with LED, carrying a 3 hour fire rating. It covers deadbolt duty under credential control, where the Sargent 4874 is a mechanical double cylinder deadbolt operated only by key and carries UL and ULC listing.
15) What finishes does the Sargent 4874 deadbolt come in?
Twelve finishes, all shipped with the standard 480 flat strike: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B dark oxidized satin bronze oil rubbed, 10BE dark oxidized satin bronze, 10BL dark oxidized satin bronze clear coated, 20D dark statuary bronze lacquered, 32 bright stainless, 32D satin stainless, BSP black suede powder coat and WSP white suede powder coat. For matching an existing building standard, 32D satin stainless is the usual commercial default and 10B the common decorative one.
16) What is a simpler alternative to the Sargent 4874 if the door only needs privacy rather than key control?
The Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 inch to 2 inch thick, and the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors. Both match the 2-3/4 inch backset class the Sargent 4874 uses and cover bed/bath type openings, where the 4874's double cylinder keying on both faces would be more control than the opening calls for.
How fast can I get the Sargent SGT-4874 10BE 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 SGT-4874 10BE come with a warranty?
Absolutely. The Sargent SGT-4874 10BE 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 SGT-4874 10BE?
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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