Sargent 8291-ET All Purpose Ho...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,799.49
$1,374.36
Sargent Sargent 8200 Series - (8291) All Purpose Holdback Function Escutcheon Trim, Heavy Duty Single Cylinder Mortise Lock, Grade 1 SGT-8291-ET

Sargent 8291-ET All Purpose Holdback Function Heavy Duty Single Cylinder Mortise Lock with Escutcheon Trim

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Model: 8291 LE1A 26D
From the 8200 Series Collection
$1,799.49
$1,374.36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,799.49
$1,374.36
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Sargent 8291-ET Heavy Duty Single Cylinder Mortise Lock with All Purpose Holdback Function and Escutcheon Trim

Industry Benchmark Grade 1 Mortise Lock Solution

The Sargent 8291-ET represents the industry benchmark for maximum security, performance, and durability in commercial door hardware. This heavy-duty single cylinder mortise lock features all purpose holdback function with escutcheon trim, designed for 1-3/4" door thickness with 2-3/4" backset depth and 3/4" latchbolt throw. Built with high-quality components and patented design construction, this Grade 1 mortise lock integrates with all Sargent key systems including Degree, Signature, KESO, and XC for comprehensive security management.

Professional Features & Benefits

  • Door Specifications: Standard 1-3/4" door thickness with 2-3/4" backset depth and 3/4" latchbolt throw for consistent professional installation requirements.
  • Exceptional Durability Testing: UL Cycle Above and Beyond test completed at 16 million cycles (Verification ID: V584148) for unmatched reliability in high-traffic commercial applications.
  • Heavy-Duty Construction: Patented design construction with high-quality components provides exceptional durability for demanding commercial environments.
  • Universal Key System Integration: Compatible with all Sargent key systems including Degree, Signature, KESO, and XC for flexible security management across facilities.
  • Multi-Functional Design: Available in 56 different functions including electromechanical, security and monitoring options with field reversible handing capability.
  • Comprehensive Fire Rating: UL 10C Fire-Rated up to 3 hours with UL-cUL listing for critical fire safety compliance in commercial applications.
  • Grade 1 Security Performance: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification exceeds industry standards for strength and security.
  • Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for long-term 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 8200 Series mortise locks deliver professional-grade reliability with patented design construction tested to 16 million cycles for exceptional durability. The 10-year limited warranty with 2-year electrical component coverage provides added confidence for demanding commercial applications. Engineered with high-quality components and comprehensive certifications including UL 10C Fire-Rating up to 3 hours, this industry benchmark mortise lock ensures dependable performance where security and reliability 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:
All Purpose Holdback
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
All Purpose Holdback
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent 8291 LE1A 26D – Frequently Asked Questions

1) What does the all purpose holdback function on the Sargent 8291 mortise lock actually do?
All purpose holdback means the latch can be held retracted so the door pushes open freely, then returned to latching when you want it secured again. It is a single cylinder keyed function with a lever handle, so one key side controls the lock. Common use is a door that needs to stay free during business hours (a stockroom, a service corridor, a loading area) and latch the rest of the time without swapping hardware.
2) Will the Sargent 8291-ET fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly what it is built for. The 8291-ET is specified for 1-3/4 inch door thickness with a 2-3/4 inch backset, which is the standard commercial mortise prep. Latchbolt throw is 3/4 inch. If your doors are thicker or thinner than 1-3/4 inches, this is not the configuration to order.
3) Will the 3/4 inch latchbolt work with my existing ANSI mortise strike?
The 8291 throws a 3/4 inch latchbolt at a 2-3/4 inch backset, which is the standard commercial mortise geometry, so it drops into an existing 8200-prepped door and standard ANSI mortise strike without reworking the frame. What you should verify is the frame strike lip and the existing mortise pocket depth, since older non-standard preps do turn up on retrofits.
4) Can the Sargent 8291 mortise lock be used on a fire rated door?
Yes. The 8200 Series lock is UL 10C fire rated up to 3 hours with UL-cUL listing, so it can go on labeled openings up to a 3 hour rating. It also carries ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification, which is what most institutional specs call for on corridor and stairwell doors.
5) Do I have to specify handing when I order this Sargent mortise lock?
The 8200 Series lock body is field reversible, so handing is set at install rather than being locked in at the order. What you do need to pick is the escutcheon (LE1, LS, LW1 or WT), the lever design (A, B, E, F, J, L, P or W), and the finish.
6) Can I order the Sargent 8291 less cylinder so it keys into my existing master key system?
Yes. The cylinder choice includes Standard Cylinder, Less Cylinder, 70 (small format interchangeable core prep, less core) and 60 (large format interchangeable core prep, less core). Pick 70 or 60 if you are dropping in your own SFIC or LFIC cores, or Less Cylinder if your locksmith is supplying the cylinder. Keying options are KD keyed different, KA keyed alike, or a specific key code, and you select None on keying when you order less cylinder. The lock works with all Sargent key systems, including Degree, Signature, KESO and XC.
7) My doors are thicker than 1-3/4 inches. Is there a mortise lock that will still work?
The 8291-ET will not suit you; it is specified at 1-3/4 inch door thickness only. Hager's 3800 Series covers a wider range: the 3810E passage with escutcheon and 2-3/4 inch backset is listed for 1-3/4 inch to 2-1/2 inch doors, as is the 3850E office lock, and the 3840S privacy covers 1-3/4 inch to 2 inch. Baldwin's 6301 and 6301LS entry/apartment mortise bodies are listed for 1-3/4 inch and over on a 2-1/2 inch backset, though note that backset differs from the 2-3/4 inch prep your Sargent doors would have.
8) What is a Grade 1 mortise storeroom lock alternative if the all purpose holdback function is not needed?
If the opening only needs a key-retracted, always-locked outside lever, the Accentra 8805FL is a Grade 1 storeroom function mortise lock in the 8800 Series with an Arcadia lever. The Sargent 8291-ET is an all purpose holdback function single cylinder mortise lock, which adds the ability to hold the latch back for periods when the door needs to stay unlatched. Cal-Royal NM8080 is another Grade 1 storeroom mortise lockset, offered with an interchangeable core option, which is worth noting against the Sargent's 70 small format and 60 large format interchangeable core preps.
9) For a classroom door, what mortise lock should be used instead of the 8291 holdback function?
Holdback is not a classroom function. For a keyed classroom opening, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series for 1-3/4 inch doors, and the Cal-Royal NM8070 is a Grade 1 classroom mortise lockset with auxiliary deadlatch, also for 1-3/4 inch doors. Marks USA LA318GJ adds a classroom security indicator with an ANSI strike and steel escutcheon on 1-3/4 inch doors if the district specifies visual status. The Sargent 8291-ET is a Grade 1 mortise lock built for 1-3/4 inch doors in the all purpose holdback function.
10) Does a Baldwin 6310 mortise lock body substitute for a Sargent 8291?
No. The Baldwin 6310 entry/storeroom mortise lock body uses a 2-1/2 inch backset and fits doors 1-3/8 inch and over, while the Sargent 8291-ET is built around a 2-3/4 inch backset on 1-3/4 inch doors, so the door and frame prep do not line up. The Baldwin 6301 entry/apartment body is likewise a 2-1/2 inch backset. Backset is the dimension to verify before ordering either one.
11) Is escutcheon trim or sectional rose trim the right choice for this mortise lock?
The 8291-ET is the escutcheon trim version, a single full plate covering the lock area on each face. Escutcheon is the usual pick on retrofits where the old trim left marks or oversized prep on the door face, and on institutional openings where a larger plate takes abuse better. Sectional rose trim is the slimmer look for narrower stiles and cleaner new doors. The Sargent 7800/8200 installation template covers both rose and escutcheon trims, so the door prep is common between them.
12) How durable is the Sargent 8200 mortise lock for a high traffic entrance?
It completed UL's Cycle Above and Beyond test at 16 million cycles (Verification ID V584148), well past what Grade 1 requires, and it is classed heavy duty commercial. For a main entry, gym corridor, or dorm door running hundreds of cycles a day, that cycle number is the figure to put in front of a facilities committee.
13) What finishes does the Sargent 8291-ET come in, and are there any that match dark bronze or painted doors?
Sixteen finishes are offered: 03 bright brass, 04 satin brass, 09 bright bronze, 10 satin bronze, 10B oil rubbed dark oxidized satin bronze, 10BE, 10BL, 14 bright nickel, 15 satin nickel, 20D dark statuary bronze lacquered, 26 bright chrome, 26D satin chrome, 32 bright stainless, 32D satin stainless, BSP black suede powder coat and WSP white suede powder coat. For dark bronze openings the 10B, 10BE, 10BL and 20D family is where to look; BSP and WSP are the powder coat options that match painted or storefront work. 26D and 32D are the standard institutional finishes if you are standardizing a building.
14) What are the alternatives if I need a Grade 1 mortise lock but a different function than holdback?
Holdback is a fairly specialized function. For the common commercial functions from other brands we carry: Cal-Royal NM8080 is Grade 1 storeroom, NM8070 is Grade 1 classroom, NM8050 is office/entrance, and NM8440 is privacy with deadbolt, all listed for 1-3/4 inch doors. Corbin Russwin ML2003 is a Grade 1 classroom mortise lockset, also 1-3/4 inch. Accentra 8805FL is a Grade 1 storeroom in the 8800 Series. Falcon MA101 is a Grade 1 heavy duty mortise passage. Those all share the 1-3/4 inch commercial door prep the 8291 uses.
15) I need keypad or card access on a mortise door instead of keys. What should I look at?
The 8291-ET is a keyed mechanical lock, so it will not give you codes or credentials. Electronic mortise options we carry include Alarm Lock Trilogy DL3500CR, Grade 1 classroom function with 300 user codes for 1-5/8 to 1-7/8 inch doors, TownSteel FME-2000 Grade 1 classroom with RFID for 1-3/4 inch doors, Schlage CO-100 standalone keypad mortise in privacy function for 1-3/4 inch doors, and Dormakaba E-Plex 2066 pushbutton keyless mortise. Watch the door thickness: the Alarm Lock units want 1-5/8 to 1-7/8 inch, not the 1-3/4 inch-only prep the Sargent uses.
16) Can I standardize one lever design and finish across a whole building with the 8200 Series?
Yes, and that is the usual reason facilities pick this platform. Eight lever designs (A, B, E, F, J, L, P, W) and sixteen finishes run across the series, and the series covers 56 functions, so a storeroom door, a classroom door and a holdback door can all carry the same lever, the same escutcheon style, and the same key system while the internal function differs. Keying ties together through any Sargent system, Degree, Signature, KESO or XC.
17) Is there a non-keyed mortise lock equivalent if the door does not need a cylinder?
For a non-keyed opening, the Schlage PM010 is a Grade 1 passage latch mortise lock for 1-3/4 inch doors, and the Hager 3810E is a Grade 1 passage mortise lock with escutcheon trim and a 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors, which matches the escutcheon presentation of the Sargent 8291-ET. Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating. The Sargent 8291-ET is a keyed single cylinder lock, so a cylinder or an interchangeable core prep is part of every order.
18) What is the closest electronic mortise lock if credentials are needed instead of a key?
For credential-based access on a mortise prep, the TownSteel FME-2000 is a Grade 1 heavy duty mortise lockset with RFID for 1-3/4 inch doors, the Schlage CO-100-MS is a Grade 1 heavy duty standalone electronic mortise lock with keypad reader for 1-3/4 inch doors, and the Accentra nexTouch NTM623-NR is a Grade 1 mortise lock with capacitive touchscreen keypad and cylinder override. The Sargent 8291-ET is a mechanical, non-electronic lock keyed on a standard cylinder.
19) What mortise lock works for an electrified opening tied to access control?
The Sargent 8291-ET is a mechanical lock. For an electrified mortise opening, the Schlage L9092EU 03A is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit and 12/24VDC operation on 1-3/4 inch doors; the BEST 45HW is a heavy duty wired electromechanical mortise lock with 12V/24V operation; and the Command Access ML190 is a heavy duty motorized mortise lock in storeroom function with field selectable EL/EU operation at 24VDC.
20) Is an Emtek Brisbane or Manhattan mortise entrance set an alternative to the Sargent 8291-ET?
No. The Emtek 3019 Brisbane and 3106 Manhattan mortise entrance locksets are dummy function, meaning there is no latch operation at all. The Sargent 8291-ET is a keyed, Grade 1 heavy duty commercial mortise lock in all purpose holdback function. If dummy trim is what the opening needs, Schlage L0170 is a Grade 1 heavy duty half dummy mortise trim for 1-3/4 inch doors.
21) What should be used on a behavioral health or ligature-resistant opening instead of a lever mortise lock?
Lever trim is not appropriate where ligature resistance is required. TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, MRX-A-01 is the same passage function with satin stainless ligature-resistant arch trim, and Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel. The Sargent 8291-ET uses lever handle trim.
22) What is the option for a privacy bath or bedroom door in the same heavy duty mortise family of products?
Holdback is not a privacy function. Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for 1-3/4 to 2 inch doors, which matches the 2-3/4 inch backset the Sargent 8291-ET uses.
23) Can a BEST 45H mortise lock body replace a Sargent 8291-ET?
They are not the same order. BEST 45HCAC is a heavy duty mortise lock body in public entrance function with field reversible operation, and 45HCAINL is a heavy duty 45HCA lockbody in intruder function; both are lock bodies rather than a complete keyed set with trim. The Sargent 8291-ET ships as a heavy duty single cylinder mortise lock with escutcheon trim, with escutcheon chosen from LE1, LS, LW1 or WT and lever from the A, B, E, F, J, L, P and W designs.
24) Is an Alarm Lock DL2700CR or DL3500CR a drop-in for a Sargent 8291 mortise prep?
Check the door thickness first. The Alarm Lock DL2700CR and DL3500CR are Grade 1 electronic mortise locks in classroom function rated for 1-5/8 to 1-7/8 inch doors, and the DL4500 is a Grade 1 electronic mortise deadbolt over the same 1-5/8 to 1-7/8 inch range. The Sargent 8291-ET is specified for 1-3/4 inch doors in all purpose holdback function, so the function and the keying method differ even where the thickness overlaps.
25) Which mortise lock suits an office or entrance door that only needs to be locked by key from outside?
Cal-Royal NM8050 is a Grade 1 heavy duty office/entrance mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, and Hager 3850E is a Grade 1 office mortise lock with lever and escutcheon on a 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors. Baldwin 6301LS is an entry/apartment lever by lever mortise lock body on a 2-1/2 inch backset. The Sargent 8291-ET covers the same openings where the holdback feature is wanted, on a 2-3/4 inch backset and a 3/4 inch latchbolt throw.
26) Is a Kaba Ilco 185 mortise lock the same kind of product as the Sargent 8291-ET?
No. The Kaba Ilco 185 Series is a mortise deadbolt with no handing, so it throws a bolt and has no latch or lever operation. The Sargent 8291-ET is a lever-operated single cylinder mortise lock with a 3/4 inch latchbolt throw and all purpose holdback function.
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Does the Sargent 8291 LE1A 26D come with a warranty?
Absolutely. The Sargent 8291 LE1A 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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