Sargent 8257-ET Institutional ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,829.01
$1,387.18
Sargent Sargent 8200 Series - (8257) Institutional Privacy Lock Function Escutcheon Trim, Heavy Duty Single Cylinder Mortise Lock, Grade 1 SGT-8257-ET

Sargent 8257-ET Institutional Privacy Lock Heavy Duty Grade 1 Mortise Lock with Escutcheon Trim

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Model: 8257 LE1A 26
From the 8200 Series Collection
$1,829.01
$1,387.18
Selected Finish is
Selected Lever is
Selected Escutcheon is

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

$1,829.01
$1,387.18
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Sargent 8257-ET Institutional Privacy Lock Escutcheon Trim for 8200 Series Mortise Locks

Professional Escutcheon Trim Component for Grade 1 Mortise Lock Systems

The Sargent 8257-ET escutcheon trim is designed for use with Sargent 8200 Series institutional privacy mortise locks, providing professional-grade finishing for commercial security applications. This trim component integrates with Grade 1 mortise locks featuring 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw. Compatible with UL 10C fire-rated systems up to 3 hours and ANSI/BHMA A156.13 Series 1000 certified locks for demanding institutional applications.

Professional Features & Benefits

  • Grade 1 System Compatibility: Designed for use with ANSI/BHMA A156.13 Series 1000 certified mortise locks providing maximum security performance.
  • Universal Door Integration: Compatible with standard 2 3/4" backset and 1 3/4" door thickness installations with field reversible handing capability.
  • Fire-Rated System Support: Integrates with UL 10C positive pressure fire-rated mortise locks up to 3 hours for life safety compliance.
  • Heavy-Duty Performance: Supports mortise lock systems tested to 16 million cycles for exceptional longevity in high-traffic applications.
  • Multi-Function Compatibility: Works with 56 different mortise lock functions including electromechanical, security and monitoring configurations.
  • Key System Integration: Compatible with all SARGENT key systems including Degree, Signature, KESO, and XC for comprehensive access control.
  • Professional Installation: Field reversible design allows adaptation to various door configurations and handing requirements.
  • Manufacturer Warranty: Backed by Sargent’s 10-year limited warranty with 2-year electrical component coverage for added confidence.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

This escutcheon trim component is designed for use with compatible Sargent 8200 Series mortise locks. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Healthcare Institutions and Behavioral Health Facilities
  • Educational Facilities and Institutional Buildings
  • Commercial Office Buildings
  • Government and Municipal Buildings
  • Multi-Tenant Residential Properties
  • Industrial and Warehouse Facilities
  • High-Security Applications Requiring Grade 1 Performance

Why Choose Sargent Quality?

Sargent 8200 Series components deliver professional-grade reliability with patented design and construction rated for 16 million cycles in independently verified testing. The 10-year limited warranty with 2-year electrical component coverage demonstrates the manufacturer’s confidence in long-term performance. Engineered for demanding commercial applications where dependable security and code compliance are essential.

Product Specs

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

Sargent 8257 LE1A 26 – Frequently Asked Questions

1) What is the Sargent 8257 institutional privacy function and where is it used?
The Sargent 8257 is the institutional privacy (asylum/utility) function in the 8200 Series mortise line. Both levers are locked at all times, and a key is required on either side to operate. That is what makes it the choice for behavioral health rooms, seclusion areas, and utility spaces where free egress is deliberately not wanted. It is a single cylinder keyed function with lever trim on a heavy duty Grade 1 mortise body.
2) Will the Sargent 8257 mortise lock fit my door? What backset and door thickness does it need?
It is built for a 2-3/4 inch backset in a 1-3/4 inch thick door, which is the standard commercial prep. The mortise pocket has to be cut for the 8200 body, so this is not a drop-in for a bored (cylindrical) prep. Handing is field reversible, so you do not have to specify left or right hand.
3) Will the Sargent 8257 latch into the strike already in my frame?
The 8257 uses a 3/4 inch latchbolt throw off a standard 2-3/4 inch backset mortise body. If your existing frame is prepped for an ANSI mortise strike at that backset, it will engage. If you are coming off a cylindrical lockset, the frame prep is different and you will need the mortise strike and a frame cut.
4) Can I use the Sargent 8257 on a fire rated opening?
Yes. The 8200 Series mortise locks are UL 10C positive pressure fire rated up to 3 hours and carry ANSI/BHMA A156.13 Series 1000 certification, so the 8257 can go on a rated door assembly within that limit.
5) What do I have to specify when ordering a Sargent 8257-ET besides the finish?
Four choices. Escutcheon style: LE1, LS, LW1, or WT. Lever design: A, B, E, F, J, L, P, or W. Cylinder: standard cylinder, less cylinder, 70 prep for small format interchangeable core less core, or 60 prep for large format IC less core. And keying: keyed different, keyed alike, or a specific key code (pick the none option if you ordered less cylinder). Finish runs 16 options from 03 bright brass through 32D satin stainless and the BSP/WSP suede powder coats.
6) Can I order the Sargent 8257 to work on my building's existing key system?
Yes. The 8200 Series takes all SARGENT key systems, including Degree, Signature, KESO, and XC. If your facility runs interchangeable cores, order the 60 prep for large format or the 70 prep for small format and supply your own cores. Keyed alike or a specific key code can be requested at order.
7) I need privacy on a bathroom, not institutional privacy. Is the 8257 the right lock?
No. The 8257 keeps both levers locked and requires a key from either side, which is wrong for a restroom or bedroom where the occupant needs to lock and free-egress from inside. For standard bed and bath privacy in a 1-3/4 inch door, look at the Cal-Royal NM8440 Grade 1 privacy mortise lockset with deadbolt or the Hager 3840S Grade 1 privacy mortise lock on a 2-3/4 inch backset.
8) For a behavioral health opening, is the Sargent 8257 or a ligature-resistant mortise lockset the right choice?
The Sargent 8257 is a Grade 1 institutional privacy mortise lock with conventional lever trim in A, B, E, F, J, L, P and W lever styles. Where the opening requires anti-ligature trim, TownSteel offers the MRX-L-01, a Grade 1 heavy duty anti-ligature lever mortise lockset in passage function, and the MRX-A-01 with ligature-resistant arch trim in satin stainless steel. Marks USA also lists the 5PDN, a Grade 1 hospital passage push/pull paddleset described as ligature resistant and ADA compliant. Note those three are passage function, so they do not lock; the 8257 is the keyed choice when the room must secure.
9) What is the closest Grade 1 mortise privacy lock to the Sargent 8257 if I need a deadbolt instead of institutional privacy?
The Sargent 8257 is an institutional privacy function Grade 1 mortise lock, keyed single cylinder with lever trim. If the opening calls for a privacy bed/bath function with a deadbolt instead, the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock with 2-3/4 inch backset. Institutional privacy differs in that it keeps an outside key override for staff access, which a standard bed/bath privacy function does not provide.
10) What looks like a substitute for the Sargent 8257 but will not work on a commercial institutional door?
Several mortise locks are not interchangeable with the Sargent 8257, a Grade 1 commercial institutional privacy lock for 1-3/4 inch doors. The Baldwin 6301 and 6310 mortise lock bodies use a 2-1/2 inch backset rather than the 2-3/4 inch the 8257 trim is built around. The Marks USA 21AC and 22AC ornamental iron mortise locks are specified for 1 inch doors. The Emtek 3102 Memphis and 3104 Hamilton mortise entrance locksets are dummy function, meaning no latching or locking at all. The Schlage L0170 is likewise a half dummy trim.
11) What is the difference between ordering escutcheon trim and sectional rose trim on a Sargent 8200 mortise lock?
Escutcheon trim is a single long plate that covers the lever and cylinder together, which is what the ET designation on the 8257-ET means. Sectional rose trim uses separate small roses for the lever and the cylinder. Escutcheon hides more of the door face, so it is the usual pick on retrofits where the old prep left marks, and it gives a heavier institutional look. The 7800/8200 installation template covers both trim styles.
12) How durable is the Sargent 8200 mortise lock for a high traffic institutional corridor?
The 8200 Series is tested to 16 million cycles and rated heavy duty Grade 1 for commercial use. For schools, hospitals, and government buildings where the same doors get worked hundreds of times a day, that cycle count is the number that matters more than the grade alone.
13) I want to standardize one mortise platform across a whole facility with different functions per door. Does the Sargent 8200 do that?
That is the case for the 8200 Series. It covers 56 different mortise functions off the same body and prep, including electromechanical, security, and monitoring configurations, so classroom, storeroom, office, and institutional privacy openings all take the same door cut, the same trim families, and the same key system. You change the function code, not the prep.
14) Does the Sargent 8257 come with a cylinder, and what if I supply my own cores?
It depends how you order it. Standard cylinder ships with a Sargent conventional cylinder installed. Less cylinder ships with no cylinder for you to fit your own. The 70 option comes prepped for a small format interchangeable core and the 60 for a large format interchangeable core, both less core, so facilities keying their own cores order those and install cores on site. If you pick less cylinder, select none on the keying option.
15) Can the Sargent 8257 be used as a classroom or storeroom lock instead?
No. The 8257 is fixed at the institutional privacy function, keyed both sides. For a classroom opening use the Corbin Russwin ML2003 Grade 1 mortise classroom lockset or the Cal-Royal NM8070, both for 1-3/4 inch doors. For storeroom, the Accentra 8805FL Grade 1 or the Cal-Royal NM8080, which offers an interchangeable core option. Or order a different function number within the Sargent 8200 Series and keep the same door prep.
16) Will the Sargent 8257 escutcheon trim match the other 8200 locks already installed in my building?
It will if you order the same escutcheon style, lever design, and finish as the existing openings. The 8257-ET uses the same four escutcheon plates (LE1, LS, LW1, WT) and the same eight lever designs (A, B, E, F, J, L, P, W) as the rest of the 8200 line, so a building standardized on, say, an LW1 escutcheon with a B lever in 26D satin chrome carries straight through to this function.
17) What other Grade 1 mortise locks can I standardize a facility on alongside the Sargent 8257?
The Sargent 8257 is a Grade 1 heavy duty mortise lock from the 8200 Series in institutional privacy function. Other Grade 1 mortise functions that round out a facility standard include the Accentra 8805FL storeroom from the 8800 Series, the Corbin Russwin ML2003 classroom from the ML2000 Series for 1-3/4 inch doors, the Cal-Royal NM8080 storeroom and NM8050 office/entrance, and the Falcon MA101 heavy duty passage from the MA Series. Keep in mind that mixing manufacturers means separate keyways and trim profiles, so most institutions hold to a single series where keying continuity matters.
18) Can I use an electronic mortise lock in place of the Sargent 8257 for a privacy application?
The Sargent 8257 is a mechanical lock with no electronics, keyed single cylinder. For a credential-managed privacy opening, the Schlage CO-100 is a Grade 1 heavy duty standalone electronic mortise lock in privacy function with a keypad reader for 1-3/4 inch doors. Schlage Electronics also lists the LEBMB-ADD mobile-enabled mortise lock covering privacy, office and apartment functions at Grade 2 with a 3 hour fire rating. Electronic locks add audit and code management but bring battery or power requirements the mechanical 8257 does not have.
19) If the door does not need to lock at all, what is the simpler alternative to the Sargent 8257?
The Sargent 8257 is a keyed single cylinder institutional privacy mortise lock, which means you are buying a cylinder and a keying decision with it. For an opening that only needs latching, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, and the Hager 3810E is a passage mortise lock with escutcheon trim and 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors. The Hager 3810E is the closest trim match if you want escutcheon plates on the passage doors to visually align with the 8257 escutcheon trim.
20) Is a rose trim mortise lock an alternative to the Sargent 8257 escutcheon trim?
The Sargent 8257 uses escutcheon trim, offered in LE1, LS, LW1 and WT designs across finishes from 03 bright brass through 32D satin stainless and BSP black suede powder coat. Rose trim is a different look and a different door prep footprint. Hager offers the same passage function both ways for comparison: the 3810E with escutcheon and the 3810S with rose, both 2-3/4 inch backset. Escutcheon trim covers more of the door face, which is why it is often chosen when replacing older hardware that left marks or holes.
21) I need an intruder or lockdown function mortise lock, not the Sargent 8257 institutional privacy. What are my options?
The Sargent 8257 is an institutional privacy function and is not a lockdown lock. For intruder function, the BEST 45HCAINL 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 technology for 1-3/4 inch doors. The BEST 45HCA option is a lock body, so trim is ordered separately.
How fast can I get the Sargent 8257 LE1A 26 delivered?
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Can I return it if it doesn’t work for me?
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Does the Sargent 8257 LE1A 26 come with a warranty?
Absolutely. The Sargent 8257 LE1A 26 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 8257 LE1A 26?
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