Sargent 8203 Grade 1 Classroom...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$804.57
$543.89
Sargent 8203 Grade 1 Classroom Deadlock Mortise Deadbolt with Single Cylinder

Sargent 8203 Grade 1 Classroom Deadlock Mortise Deadbolt with Single Cylinder

(No reviews yet) Write a Review

Model: SGT-8203 03
Selected Finish is

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

$804.57
$543.89
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 Grade 1 Classroom Deadlock Mortise Deadbolt with 2 3/4" Backset and Single Cylinder

Professional-Grade Classroom Security Solution

The Sargent Grade 1 Classroom Deadlock Mortise Deadbolt delivers maximum security and durability for educational and commercial applications. This robust deadbolt-only unit features a 2 3/4" backset, 1 3/4" door thickness compatibility, and non-handed design for versatile installation. Built with a one-piece hardened steel deadbolt and UL/ULC listed construction, this industry benchmark provides reliable classroom security with key outside operation and thumbturn inside retraction only.

Professional Features & Benefits

  • Door Compatibility: Designed for 1 3/4" door thickness with 2 3/4" backset for standard commercial door applications.
  • Heavy-Duty Construction: One-piece hardened steel deadbolt provides exceptional durability and security for high-traffic classroom environments.
  • Classroom Function: Key outside retracts and projects deadbolt while thumbturn inside retracts deadbolt only for enhanced classroom security protocols.
  • Universal Installation: Non-handed design allows flexible installation on left or right-hand doors without modification.
  • Key System Compatibility: Available with all Sargent key systems including Degree, Signature, KESO, and XC for integrated access control.
  • UL/ULC Certification: UL and ULC listed construction meets stringent safety and performance standards for commercial applications.
  • Manufacturer Warranty: 10-year limited warranty provides long-term protection and confidence in product reliability.
  • Grade 1 Performance: ANSI/BHMA A156.13 Series 1000 compliance ensures maximum security rating for demanding applications.

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

  • Educational Facilities and Classrooms
  • Commercial Office Buildings
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities
  • Retail Establishments

Why Choose Sargent Quality?

Sargent mortise deadbolt products deliver professional-grade reliability with hardened steel construction and Grade 1 ANSI/BHMA certification for maximum security performance. The 10-year limited warranty demonstrates confidence in long-term durability and performance. Engineered for demanding commercial applications where dependable classroom security and robust construction 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:
Classroom
Keyed Function:
Deadbolt
Lock Type:
Deadbolt
Product Model:
8203
Product Function:
Classroom
Product Category:
Mechanical Locks
Department:
Door Hardware

Sargent SGT-8203 03 – Frequently Asked Questions

1) Does the Sargent 8203 classroom deadlock have a latch, or is it deadbolt only?
Deadbolt only. The Sargent 8203 is a mortise deadlock, so there is no latchbolt and no knob or lever function. The key outside both projects and retracts the deadbolt, and the inside thumbturn retracts it only. If the opening needs a latch for normal day-to-day operation, pair it with a separate latch or use a full classroom lockset such as the Corbin Russwin ML2003.
2) Can the Sargent 8203 be keyed into our existing Sargent master key system?
It works with all Sargent key systems, including Degree, Signature, KESO, and XC, so it can be brought into an existing Sargent keying hierarchy. It takes a single cylinder outside, with a thumbturn inside instead of a second cylinder.
3) Is the Sargent 8203 deadlock Grade 1 and fire door rated?
It meets ANSI/BHMA A156.13 Series 1000, Grade 1, and the construction is UL and ULC Listed. The deadbolt itself is one-piece hardened steel.
4) What is the closest cross-brand equivalent to the Sargent 8203 classroom mortise deadbolt if I need a keyed mortise deadbolt lock body without a lever?
The Sargent 8203 is a deadbolt-only mortise unit with a classroom function, so the nearest cross-brand match is another deadbolt-function mortise body rather than a lockset with trim. The Kaba Ilco 185 Series mortise lock is listed as a deadbolt function and is supplied non-handed, which is the same arrangement as the 8203's non-handed body. Anything with a lever or knob trim - such as the Cal-Royal NM8070 classroom lockset - is a latching lockset and will not drop into a deadbolt-only mortise pocket.
5) I need a classroom opening with latching and locking in one mortise lock instead of a separate deadbolt - what should I use instead of the Sargent 8203?
The Sargent 8203 handles only the deadbolt; it has no latchbolt and no lever trim. For a single mortise lockset that latches and locks in classroom function, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors, and the Cal-Royal NM8070 is a Grade 1 classroom mortise lockset with an auxiliary deadlatch, also for 1-3/4 inch doors. Both cover the opening with one lock body where the 8203 would need a separate latching device.
6) Is there a keypad alternative to the Sargent 8203 mortise deadbolt for a door where we do not want to issue keys?
The Sargent 8203 is key-operated outside with a thumbturn inside. If the site wants code entry instead, the Alarm Lock DL4500 Series is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad, listed for doors 1-5/8 inch to 1-7/8 inch. It covers the same deadbolt function electronically, so verify the existing mortise pocket and door thickness fall in that range before switching.
7) Do I need to order a left-hand or right-hand version of the Sargent 8203?
Handing isn't a factor. The 8203 deadlock is non-handed, so the same body goes into a left- or right-hand door without modification. That makes it easier to stock one part number across a building.
8) What strike comes with the Sargent 8203 deadlock?
Every configuration ships with the 4-7/8 inch no-lip strike, part 78-0034, as standard. A deadbolt does not need a lip, so the flat strike suits a standard 4-7/8 inch ANSI frame prep.
9) Is a mechanical mortise deadbolt or an electronic classroom lock the better choice for a school?
The Sargent 8203 is the mechanical route: key outside, thumbturn inside, no power, no batteries, no audit trail. Choose it when you want the simplest possible secure-in-place hardware. If you need user codes or credential control, ZenSupply carries electronic classroom mortise options including the Alarm Lock DL3500CR with 300 user codes and the TownSteel FME-2000 with RFID, both Grade 1. Note those electronic units have their own door thickness windows, for example the DL3500CR covers 1-5/8 to 1-7/8 inch.
10) Can the Sargent 8203 be used as an auxiliary deadbolt above an existing classroom lockset?
That is exactly what a deadlock body is for. Because it is deadbolt only and non-handed, the 8203 goes into a second mortise pocket to add key-controlled deadbolt security above or below the existing lockset, as long as that door is 1-3/4 inches thick and prepped for a 2-3/4 inch backset.
11) If I need classroom function with electronic access control rather than a mechanical key, what replaces the Sargent 8203?
For a classroom opening moving to credentials or codes, the Alarm Lock DL3500CR is a Grade 1 electronic mortise lock with 300 user codes in classroom function for 1-5/8 inch to 1-7/8 inch doors, and the TownSteel FME-2000 Series is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors. Both are latching locksets, whereas the Sargent 8203 is a deadbolt-only body with a one-piece hardened steel bolt, so the door prep and the way the opening secures are different.
12) Can I use a Schlage PM010 or Falcon MA101 in place of the Sargent 8203?
No. Both look like mortise bodies but neither locks. 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 with field reversible operation. The Sargent 8203 is a keyed classroom deadbolt, so a passage function would leave the opening unsecured.
13) For a storeroom door rather than a classroom door, what mortise lock should I order instead of the Sargent 8203?
The Sargent 8203 is built for classroom function, where the key outside projects and retracts the bolt and the inside thumbturn only retracts it. For storeroom openings, 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 for 1-3/4 inch doors. Both are latching locksets that keep the outside lever always locked.
14) Our doors are thicker than 1-3/4 inch - is there a mortise option that covers a wider thickness range than the Sargent 8203?
The Sargent 8203 is specified for 1-3/4 inch door thickness. If the openings run thicker, the Hager 3810E and 3810S in the 3800 Series are listed for 1-3/4 inch to 2-1/2 inch doors with a 2-3/4 inch backset, which matches the 8203's 2-3/4 inch backset. Note those Hager units are passage function, so they suit openings that do not require keying.
15) What mortise option gives a classroom door an intruder or lockdown function that the Sargent 8203 does not?
The Sargent 8203 is retracted from inside by thumbturn and projected only by key from outside. For openings where staff need to secure from inside the room, the BEST 45HCA Series is a heavy duty mortise lockbody with intruder function, and the TownSteel FME-4000 Series is a Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID for 1-3/4 inch doors.
16) Is the Baldwin 6310 mortise lock a substitute for the Sargent 8203?
It is not a direct swap. The Baldwin 6310 is an entry/storeroom knob-by-knob mortise lock body on a 2-1/2 inch backset for doors 1-3/8 inch and over, while the Sargent 8203 uses a 2-3/4 inch backset. The different backset means the cylinder and mortise pocket locations do not line up, and the 6310 is a latching lockset rather than a deadbolt-only unit.
17) We are standardizing a campus on Grade 1 mortise hardware - which alternatives to the Sargent 8203 carry the same grade?
The Sargent 8203 meets ANSI/BHMA A156.13 Series 1000 Grade 1 and is UL/ULC listed. Grade 1 mortise peers include the Corbin Russwin ML2003 classroom lockset, the Cal-Royal NM8070 classroom lockset and NM8080 storeroom lockset, the Accentra 8805FL storeroom lock, and the TownSteel FME-2000 classroom lockset. The Schlage LE Series LEBMB-ADD mobile-enabled mortise lock is Grade 2, so exclude it if Grade 1 is a hard spec.
18) What finishes does the Sargent 8203 mortise deadbolt come in?
Twelve finishes are offered: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized satin bronze, 10BE and 10BL dark oxidized satin bronze, 20D dark statuary bronze lacquered, 32 bright stainless, 32D satin stainless, plus BSP black and WSP white suede powder coat. 32D is the usual choice for matching existing commercial stainless trim.
19) What is a non-keyed alternative if I just need a mortise deadbolt without a cylinder outside?
The 8203 is keyed outside by design and cannot be run without a cylinder. For a deadbolt-function mortise body from another line, ZenSupply carries the Kaba Ilco 185 Series, which is non-handed and catalogued with deadbolt function, and the Alarm Lock DL4500 electronic mortise deadbolt with privacy keypad if keyless operation is the goal.
20) For a bed/bath or privacy door, what takes the place of the Sargent 8203 classroom deadbolt?
The 8203 is keyed outside, which is not what a privacy opening needs. The Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S in the 3800 Series is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 inch to 2 inch, the same backset the 8203 uses.
How fast can I get the Sargent SGT-8203 03 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-8203 03 come with a warranty?
Absolutely. The Sargent SGT-8203 03 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-8203 03?
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 SGT-8203 03 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.
!