Sargent 8220 Grade 1 Mortise D...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$701.61
$31.30
Sargent 8220 Series - Grade 1 Deadlock Mortise Deadbolt Only, Single Cylinder, Not Handed, Conventional Cylinder, Flat Strike

Sargent 8220 Grade 1 Mortise Deadlock with Single Cylinder and 2 3/4" Backset

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Model: SGT-8220 04
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$701.61
$31.30
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Sargent 8220 Grade 1 Mortise Deadlock with Single Cylinder and 2-3/4" Backset

Professional Grade 1 Mortise Deadlock Solution

The Sargent 8220 Series mortise deadlock delivers maximum security and durability with Grade 1 construction designed for demanding commercial applications. This robust deadlock features a one-piece hardened steel deadbolt with 2-3/4" backset and 1-3/4" door thickness compatibility. UL and ULC listed for fire safety compliance, this non-handed deadlock provides key-operated deadbolt projection and retraction from the outside with no inside operation capability.

Professional Features & Benefits

  • Door Compatibility: Standard 1-3/4" door thickness with 2-3/4" backset for consistent commercial door applications.
  • Heavy-Duty Construction: One-piece hardened steel deadbolt provides exceptional strength and tamper resistance for high-security applications.
  • Grade 1 Performance: ANSI/BHMA A156.13 Series 1000 certification ensures maximum durability and operational reliability in commercial environments.
  • Universal Installation: Non-handed design simplifies inventory management and installation planning for any door swing configuration.
  • Key System Compatibility: Available with all Sargent key systems including Degree, Signature, KESO, and XC for flexible master keying options.
  • Fire Safety Compliance: UL and ULC listed for use in fire-rated door assemblies and life safety applications.
  • Complete Package: Includes 2 keys and curved lip strike for immediate installation readiness.
  • Manufacturer Warranty: 10-year limited warranty provides long-term protection and confidence in product reliability.

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 deadlock products deliver professional-grade reliability with hardened steel construction and Grade 1 ANSI/BHMA certification for demanding commercial applications. UL and ULC fire safety listings ensure code compliance in critical life safety installations. Engineered for maximum security with a 10-year limited warranty, this deadlock provides dependable performance where security and durability are essential.

Product Specs

Series:
8200 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:
Deadlock
Keyed Function:
Single Cylinder
Lock Type:
Deadbolt
Product Model:
8220
Product Function:
Deadlock
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent SGT-8220 04 – Frequently Asked Questions

1) Will the Sargent 8220 mortise deadlock fit a 1-3/4 inch commercial door?
Yes. The Sargent 8220 is built for a standard 1-3/4 inch door thickness with a 2-3/4 inch backset, which is the usual commercial mortise prep. If your doors are thicker or the existing mortise pocket is cut to a 2-3/8 inch backset, this is not the right body.
2) Does the Sargent 8220 have to be ordered handed?
No handing to specify. The 8220 is a non-handed deadlock, so one part number covers left and right swings, which is why it is easy to stock across a building.
3) Can you retract the Sargent 8220 deadbolt from inside the room without a key?
No. The 8220 is a single cylinder deadlock, key operated from the outside only, with no inside thumbturn or lever operation. On any opening that needs free egress, that matters, so it is normally used on storage rooms, closets and secondary doors rather than a required exit. If you need keyed function with inside egress, a lever mortise lockset such as the Cal-Royal NM8080 storeroom function is the direction to go.
4) Is the Sargent 8220 deadlock approved for a fire rated door?
The 8220 is UL and ULC listed for use in fire rated door assemblies. It also carries ANSI/BHMA A156.13 Series 1000 Grade 1 certification, which is the highest durability grade for mortise locks and the level most institutional specs call out.
5) Can the Sargent 8220 be master keyed into our existing Sargent system?
Yes. The 8220 accepts all Sargent key systems, including Degree, Signature, KESO and XC, so it can be brought into an existing Sargent masterkey hierarchy rather than run as a standalone key.
6) Is there a keypad version of a mortise deadbolt if I want to stop issuing keys?
The Sargent 8220 is purely mechanical and key operated. For a keyless deadbolt on a mortise prep, the Alarm Lock DL4500 Series is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad, rated for doors 1-5/8 inch to 1-7/8 inch thick. It covers the same bolt-only security role while managing access by code instead of by cylinder.
7) What is the closest mechanical alternative to the Sargent 8220 mortise deadlock if I need a keyed deadbolt with no lever trim?
The Sargent 8220 is a deadlock only - a single cylinder, non-handed mortise deadbolt body with no inside operation. The closest mechanical counterpart is the Kaba Ilco 185 Series mortise lock, which is also a non-handed deadbolt function mortise lock. Both give you bolt-only security without lever or knob trim, so they suit a door where a separate latching device or pull handles the day-to-day operation.
8) I need keyed entry plus a latch in one mortise lock instead of a deadbolt only - what should I order?
The Sargent 8220 projects and retracts a deadbolt by key from the outside only, so it does not latch a door on its own. If the opening needs a latching, keyed lockset, the Accentra 8805FL is a Grade 1 storeroom mortise lock with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option. Both give keyed outside access with a latchbolt, which the 8220 does not provide.
9) Will the Sargent 8220 work on a classroom door that needs lockdown?
The Sargent 8220 is a deadlock with key operation from the outside only and no inside control, so it is not a classroom security solution. For classroom lockdown, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors, the Cal-Royal NM8070 is a Grade 1 classroom mortise lockset with auxiliary deadlatch, and the Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors.
10) For a restroom or bedroom door, is the Sargent 8220 the right mortise lock?
No - the Sargent 8220 has no inside operation, so an occupant cannot secure or release it from within the room. For privacy openings use a lock built for it: the Hager 3840S is a Grade 1 privacy mortise lock with 2-3/4 inch backset for 1-3/4 inch to 2 inch doors, and the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors.
11) What comes in the box with the Sargent 8220 deadlock?
Two keys and a curved lip strike ship with the deadlock. The orderable strike option is the 4-7/8 inch no lip strike (78-0034) as standard, which is the flat ANSI style face most hollow metal frames are prepped for.
12) How is a mortise deadlock different from a mortise lockset, and which do I need?
The Sargent 8220 is a deadbolt only. There is no latchbolt, no knob and no lever, so the door has to be held closed by something else, typically a separate latch, closer or a lockset on the same leaf. A mortise lockset such as the Corbin Russwin ML2003 classroom or the Cal-Royal NM8050 office/entrance combines latch and trim in one body. Use the deadlock when you want to add a hardened keyed bolt to an opening that already latches.
13) What makes the Sargent 8220 bolt more secure than a standard deadbolt?
The bolt is one-piece hardened steel, which resists sawing and prying better than a cast or two-piece bolt, and the whole body is mortised into the door edge rather than surface mounted. That combination is why it is specified on high security storage, mechanical and tenant doors.
14) Can I substitute a passage mortise lock for the Sargent 8220?
They do opposite jobs. The Sargent 8220 is a keyed deadlock providing bolt security; passage products such as the Schlage PM010 Grade 1 passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 Grade 1 heavy duty mortise passage lock, and the Hager 3810S Grade 1 passage mortise lock with 2-3/4 inch backset are non-keyed and only hold the door closed. Pair a passage lock with the 8220 if you want free operation plus a separate keyed bolt.
15) What mortise option gives me credential or card access instead of the Sargent 8220's cylinder?
The Sargent 8220 is keyed only and supports Sargent key systems for master keying. If the facility is moving to credentials, the TownSteel FME-2000 is a Grade 1 heavy duty mortise lockset with RFID technology for 1-3/4 inch doors, the Schlage LEMD-GRW is a Grade 1 ENGAGE wireless mortise lock with a 125kHz proximity reader and mobile enabled deadbolt, and the Dormakaba E-Plex E5086 is a Grade 1 pushbutton and card mortise lock. These manage access electronically rather than by key.
16) The Sargent 8220 fits a 1-3/4 inch door - what mortise locks cover thicker doors?
The Sargent 8220 is built for standard 1-3/4 inch commercial doors with a 2-3/4 inch backset. If the door is thicker, the Hager 3810E and 3850E cover 1-3/4 inch through 2-1/2 inch, and the Baldwin 6301 mortise lock body covers 1-3/4 inch and over. Confirm backset as well, since the Baldwin bodies use a 2-1/2 inch backset rather than 2-3/4 inch.
17) Which mortise lock should I use instead of the Sargent 8220 on an electrified opening tied to access control?
The Sargent 8220 is a mechanical deadlock with no electrical option. For an opening that must release from an access control panel, the Command Access ML190 is a heavy duty motorized mortise lock with field selectable EL/EU operation on 24VDC in a storeroom function, the BEST 45HW is a heavy duty wired electromechanical mortise lock for 12V or 24V, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock mortise lock with request to exit on 12/24VDC.
18) Does a dummy mortise lockset work as a lower cost stand-in for the Sargent 8220?
No. Dummy products such as the Emtek 3102 Memphis, the Emtek 3104 Hamilton, and the Schlage L0170 half dummy trim are non-keyed trim with no working bolt, so they secure nothing. The Sargent 8220 is a keyed deadlock with a one-piece hardened steel deadbolt. Use a dummy only on the inactive leaf of a pair where no locking is required.
19) Is there a mortise deadbolt option for an aluminum storefront or glass door instead of the Sargent 8220?
The Sargent 8220 is prepped for standard 1-3/4 inch commercial doors. Narrow and glass door openings take different hardware: the Alarm Lock DL1300NW is an electronic mortise lock with keypad made for Adams Rite deadlatches, the Dormakaba E-Plex 2066 is a wide stile mortise lock, and the Kaba Ilco BR Series is a glass door bottom rail lock.
20) For a behavioral health or patient room, is the Sargent 8220 an acceptable choice?
The Sargent 8220 is a commercial deadlock and carries no anti-ligature design. Openings with ligature requirements are better served by the TownSteel MRX-A-01 or MRX-L-01, both Grade 1 heavy duty ligature resistant passage mortise locksets for 1-3/4 inch doors, or the Marks USA 5PDN Grade 1 hospital passage push/pull paddleset, which is ligature resistant and ADA compliant in satin stainless steel.
21) What finishes does the Sargent 8220 deadlock come in to match the rest of my doors?
Twelve finishes: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized satin bronze, 10BE, 10BL, 20D dark statuary bronze, 32 bright stainless, 32D satin stainless, plus BSP black and WSP white suede powder coat. 32D is the usual match for commercial stainless trim.
22) We standardize on Grade 1 mortise hardware across the building - which other mortise locks match the 8220's grade?
The Sargent 8220 is certified to ANSI/BHMA A156.13 Series 1000 Grade 1. Grade 1 mortise peers for other functions in the same building include the Accentra 8805FL storeroom, the Cal-Royal NM8050 office/entrance for 1-3/4 inch doors, the Corbin Russwin ML2003 classroom, and the Falcon MA101 heavy duty passage. That lets you hold one grade standard while varying function door to door.
How fast can I get the Sargent SGT-8220 04 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-8220 04 come with a warranty?
Absolutely. The Sargent SGT-8220 04 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-8220 04?
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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