TownSteel MSE Series ANSI Grad...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$715.00
$710.62
TownSteel TownSteel MSE Series Storeroom with Deadbolt Function - Heavy Duty Standard Escutcheon Mortise Lock, Double Cylinder TWS-MSE-35

TownSteel MSE Series ANSI Grade 1 Heavy Duty Mortise Lock with Storeroom Deadbolt Function, Double Cylinder Escutcheon Trim

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Model: MSE-R-T-35-626
$715.00
$710.62
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$715.00
$710.62
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TownSteel MSE Series ANSI Grade 1 Heavy Duty Mortise Lock with Storeroom Deadbolt Function, Double Cylinder Escutcheon Trim

The TownSteel MSE Series is an ANSI Grade 1 heavy duty mortise lock built for single opening, stand-alone storeroom applications or integration into access control systems. This double cylinder mortise lock features a 2-3/4" backset, a 3/4" stainless steel split anti-friction latch bolt, and a 10-9/16" x 2-3/8" x 9/32" brass escutcheon for durable commercial performance.

Key Features

  • Precision Backset: 2-3/4" backset for accurate mortise pocket fit.
  • Heavy-Duty Latch Bolt: 3/4" projection stainless steel split anti-friction latch bolt for smooth, reliable latching.
  • Stainless Steel Strike & Guard Bolt: ANSI strike and stainless steel guard bolt resist tampering and corrosion.
  • Brass Escutcheon Trim: 10-9/16" x 2-3/8" x 9/32" brass escutcheon with a 1-1/4" x 8" stainless steel faceplate.
  • Forged Lever Construction: Forged brass/cast zinc levers plated to match finish symbols.
  • Classic Visible Thumb Turn: Brass thumb turn provides quick, intuitive deadbolt operation from the interior.
  • Stainless Steel Rocker Stop Works: Rocker-type stop works mechanism supports dependable mechanical operation.
  • Access Control Ready: Optional REX (request-to-exit), PRIV (privacy), DAJ (door ajar), and MKO (mechanical key override) status sensors support integration into access control systems.

Certifications & Compliance

  • ANSI/BHMA Grade 1
  • 2-Year Manufacturer's Warranty

Technical Specifications

  • Product Group: Mechanical Locks
  • Product Subgroup: Mortise Locks and Trim
  • Product Type: Mortise Locks
  • Subcategory: Mortise Locks
  • Keyed Function: Double Cylinder
  • Commercial/Residential: Commercial
  • Keyed: Yes
  • Lock Function: Double Cylinder
  • Product Attribute: Mortise Locks
  • Electronic: No
  • Product Function: Storeroom
  • Product Category: Mechanical Locks
  • Department: Door Hardware

Typical Applications

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

Why TownSteel MSE?

TownSteel MSE Series mortise locks combine ANSI/BHMA Grade 1 durability with stainless steel latch bolts, guard bolts, and forged brass escutcheon trim for dependable performance in demanding commercial environments. Engineered for stand-alone storeroom applications or full access control system integration, the MSE Series delivers professional-grade reliability where it matters most.

Product Specs

Series:
MSE Series
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise Locks
Keyed Function:
Double Cylinder
Commercial/Residential:
Commercial
Lock Type:
Mortise
Keyed:
Yes
Lock Function:
Double Cylinder
Grade:
Grade 1
Duty Level:
Heavy Duty
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Storeroom
Product Category:
Mechanical Locks
Department:
Door Hardware

TownSteel MSE-R-T-35-626 – Frequently Asked Questions

1) What backset and faceplate does the TownSteel MSE Series mortise lock use, and will it drop into an existing mortise pocket?
The MSE Series mortise lock uses a 2-3/4 inch backset with a 1-1/4 x 8 inch stainless steel faceplate, which is the standard commercial mortise prep. If the door already has a 2-3/4 inch backset pocket cut for an 8 inch faceplate, the lock body lands in the same footprint. The escutcheon trim measures 10-9/16 x 2-3/8 x 9/32 inches in brass, so check that the existing trim holes fall under that plate before you commit.
2) Will the TownSteel MSE storeroom lock latch into the strike already in my frame?
The latch bolt throws 3/4 inch and is stainless steel, split and anti-friction, and the lock ships with an ANSI strike in plated or stainless steel. If your frame is prepped for a standard ANSI strike, the supplied strike drops into the same cutout. A non-ANSI or older proprietary strike cutout will need the frame reworked or the strike filled and re-prepped.
3) What does storeroom with deadbolt function mean on a double cylinder mortise lock?
Storeroom function means the outside lever is always locked and a key retracts the latch for entry; the inside lever always retracts the latch for free egress. Because this MSE configuration is double cylinder, the deadbolt is thrown and withdrawn by key from either side rather than by a thumbturn inside. That is a security choice for storage rooms, mechanical spaces and back-of-house doors, but a keyed deadbolt on the egress side is restricted under most life-safety codes on doors required for egress, so confirm the opening's code status before specifying double cylinder.
4) Do I have to specify handing when ordering the TownSteel MSE mortise lock?
Handing is required. You pick LH (left hand), RH (right hand), LHR (left hand reverse) or RHR (right hand reverse) at order. Stand outside the door: if the hinges are on your left it is left hand, and if the door swings toward you it is the reverse version. Get this wrong and the lever and latch orientation will not match the opening.
5) Can I get the TownSteel MSE locks keyed alike across a building?
Keying is chosen at order: keyed different (the standard), keyed alike for multiple locks on one key, or a specific key code for special keying into an existing system. Property managers standardizing a floor or a set of storage rooms should take keyed alike; if you already run a master system, supply the key code. There is also an SFIC prep, less core option if your locksmith is setting you up on small format interchangeable cores you already stock.
6) I only need a double cylinder deadbolt, not a full latching lockset. What should I order instead of the MSE?
The TownSteel MSE Series combines a storeroom latch with a deadbolt and a double cylinder keyed function in one mortise body, so it is more lock than a deadbolt-only opening needs. For deadbolt only, the Sargent 4874 is a double cylinder mortise deadbolt with the same 2-3/4 inch backset the MSE uses, and the Kaba Ilco 185 Series is a mortise deadbolt that requires no handing. Neither of those provides a latch or lever trim, so use them only where a separate latch or push-pull handles the door.
7) What is a direct Grade 1 storeroom mortise lock alternative to the TownSteel MSE Series?
The TownSteel MSE Series is a Grade 1 heavy duty storeroom-function mortise lock with a 2-3/4 inch backset and escutcheon trim. Two Grade 1 storeroom mortise locks cover the same function: the Accentra 8805FL, which comes with the Arcadia lever, and the Cal-Royal NM8080, which is a Grade 1 storeroom mortise lockset with an interchangeable core option for 1-3/4 inch doors. The MSE offers both a Standard cylinder and an SFIC prep less core build, so if you are keying into an existing small format interchangeable core system, the MSE SFIC prep and the NM8080 IC option both address that.
8) We need the door to be free-entry but still look like the MSE mortise trim. What non-keyed mortise lock matches?
The MSE Series is a keyed storeroom lock, so for a corridor or closet door that should always push open, a passage mortise lock is the right part. The Hager 3810E in the 3800 Series is a Grade 1 passage mortise lock with escutcheon trim and a 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inches, matching the MSE backset and escutcheon style; the 3810S is the same passage lock with rose trim instead. The Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, and the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors.
9) The MSE has a 2-3/4 inch backset. What if my existing mortise pocket is a 2-1/2 inch backset?
The TownSteel MSE Series mortise body is built for a 2-3/4 inch backset, so it will not drop into a 2-1/2 inch pocket without a new prep. The Baldwin 6310 entry/storeroom mortise lock body uses a 2-1/2 inch backset in knob-by-knob form and is listed for doors 1-3/8 inch and over, with the 6310190RRLS the right hand reverse lever-by-lever version. The Baldwin 6301 entry/apartment body is also 2-1/2 inch backset, in knob and lever configurations, for doors 1-3/4 inch and over.
10) The MSE Series mentions access control integration. If I need an actual electrified mortise lock, what do I order?
The MSE Series as supplied is a mechanical lock with optional status sensors such as request-to-exit, privacy, door ajar, and mechanical key override, and it is not itself electronic. For a powered mortise lock, the Command Access ML190 is a heavy duty motorized mortise lock in storeroom function with field selectable fail safe or fail secure operation on 24VDC, the BEST 45HW is a heavy duty wired electromechanical mortise lock running 12V or 24V, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside with request to exit, at 12/24VDC for 1-3/4 inch doors.
11) What is the difference between the SFIC prep and standard cylinder option on this mortise lock?
Standard means the lock comes with a conventional mortise cylinder. SFIC Prep, Less Core means the lock is machined to take a small format interchangeable core but no core is supplied, so you add cores from your own keying system. Facilities that rekey in-house and integrators maintaining a core stock take the SFIC prep; a single-door replacement is simpler with the standard cylinder.
12) Is the TownSteel MSE mortise lock heavy enough for high-traffic commercial doors?
It is an ANSI Grade 1 heavy duty commercial mortise lock, the top grade for durability and strength, which is what you specify for schools, hospitals, multi-family corridors and any opening that sees constant use. Grade 2 cylindrical hardware is not the equivalent on that kind of traffic.
13) What finishes and lever styles can I get on the TownSteel MSE escutcheon mortise lock?
Seven finishes are offered: 605 bright brass, 606 satin brass, 622 matte black, 625 bright chrome, 626 satin chrome, 629 bright stainless steel and 630 satin stainless steel. Levers come in eight styles, Artistic, Congr, Gala, Imperial, Quest, Regal, Sentinel and Tango, in forged brass or cast zinc plated to match the finish symbol. If you are matching existing openings, 626 satin chrome and 630 satin stainless are the two most commonly used commercial finishes.
14) Is the TownSteel MSE an electronic or access-control lock?
No. The MSE configuration described here is a mechanical, keyed mortise lock, not electronic. If you need standalone credential control on the same opening, ZenSupply carries electronic mortise options such as the Schlage CO-100 standalone electronic mortise lock with keypad reader and the Alarm Lock DL3500CR Trilogy Grade 1 electronic mortise lock with 300 user codes. For wired access control integration there is the BEST 45HW wired electromechanical mortise lock with 12V/24V operation.
15) What other Grade 1 storeroom mortise locks could I use instead of the TownSteel MSE?
Two direct alternatives ZenSupply carries: the Cal-Royal NM8080 heavy duty Grade 1 storeroom mortise lockset with interchangeable core option, listed for 1-3/4 inch doors, and the Accentra 8805FL Grade 1 storeroom mortise lock with Arcadia lever from the 8800 Series. The main difference to weigh is trim, the MSE is an escutcheon lock while the Accentra 8805FL is a lever offering, so match whichever style is already on the surrounding openings.
16) What is the difference between the TownSteel MSE and an office or entrance function mortise lock like the Cal-Royal NM8050?
The TownSteel MSE Series is a storeroom function lock with a deadbolt and double cylinder keying, so the outside lever does not have an unlocked state. The Cal-Royal NM8050 is a Grade 1 heavy duty office/entrance mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors, which allows the outside lever to be left unlocked for business hours. Choose the MSE where the door must stay secured at all times, such as a storage or mechanical room, and an office/entrance function where staff need to leave the door free during the day.
17) Can I use the TownSteel MSE on a bathroom or bedroom door, or do I need a privacy lock?
The MSE Series is keyed on both sides as a double cylinder storeroom lock, which is not what a bath or bedroom opening wants. For privacy, the Cal-Royal NM8440 is a Grade 1 heavy duty privacy mortise lockset with a 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 to 2 inches thick. Both give an inside thumbturn instead of an outside keyway.
18) Is the TownSteel MSE Series the right lock if I want keypad or credential access on the door?
No. The MSE Series is a mechanical, non-electronic mortise lock operated by key and lever. For credential or code access on a mortise prep, the Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with 300 user codes and classroom function for 1-5/8 to 1-7/8 inch doors, the Schlage CO-100-MS is a Grade 1 heavy duty standalone electronic mortise lock with a keypad reader for 1-3/4 inch doors, and the Schlage ENGAGE LEMD-GRW is a Grade 1 wireless mortise lock with a 125kHz proximity reader. The BEST 45HZ EZ Series keypad mortise lock includes a key override if you want both code and key entry.
19) Will a Sargent 130KB thumbturn or a Falcon MESC600DT escutcheon substitute for the TownSteel MSE?
No, those are trim pieces, not locks. The MSE Series is a complete Grade 1 heavy duty mortise lock with a lock body, 3/4 inch stainless steel anti-friction latch bolt, ANSI strike, and brass escutcheon measuring 10-9/16 by 2-3/8 by 9/32 inch. The Sargent 130KB is a standard duty mortise thumbturn in the 8200 Series and the 130W is a mortise thumbturn with a round backplate, while the Falcon MESC600DT is a dummy escutcheon lever trim for M9900 Series exit devices with no latching mechanism behind it. Order those only as replacement components.
20) What should I use instead of the MSE on a dormitory or corridor door where occupants lock from inside?
The MSE Series storeroom function keeps the outside lever locked at all times with a double cylinder deadbolt, which is not a dormitory arrangement. The Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock in the 7900 Series with rose trim and a single cylinder deadbolt, so the occupant throws the bolt with an inside turn. The BEST 45H Series heavy duty mortise lock body in public entrance function is another option for a corridor door that needs to be locked and unlocked by key from outside; it is field reversible.
21) Can I substitute a cylindrical lock for the MSE mortise lock to save on door prep?
Only if you are cutting a new door. The MSE Series requires a mortise pocket with a 1-1/4 by 8 inch faceplate and a 2-3/4 inch backset, while a cylindrical lock such as the Schlage PC10, a Grade 1 passage cylindrical lock with rose for 1-3/4 inch doors, uses a bored prep instead. The two preps are not interchangeable in an existing door, and the PC10 is passage function with no keying, where the MSE is keyed on both sides as a double cylinder storeroom lock.
22) For a behavioral health or hospital opening, is the MSE Series appropriate or is there a better mortise option?
The MSE Series is a Grade 1 commercial storeroom mortise lock with lever trim in eight lever styles, which presents a graspable lever. Where ligature resistance is the requirement, the 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 BEST 45HCA heavy duty mortise lockbody with intruder function is the option where a room needs to be secured from the inside during a lockdown.
23) Should I pick the low or regular escutcheon on the MSE mortise lock?
Both MSE escutcheon heights are offered, low and regular. The escutcheon covers the lever and the cylinder and thumbturn openings on one plate, so the choice is about the vertical space on the stile and matching the look of the other doors in the building. Regular is the default look on a standard opening; the low plate is the one to take where trim above or below the lock, a vision light or a narrow band of stile limits height.
24) Does the TownSteel MSE lock have an auxiliary bolt to keep the latch from being carded?
Yes, there is a stainless steel guard bolt alongside the 3/4 inch split, anti-friction stainless latch bolt. The guard bolt deadlocks the latch when the door is closed so it cannot be slipped with a card or shim. Stop works are stainless steel, rocker type.
25) What is a dummy trim option if one leaf of a pair needs to look like the MSE but not latch?
The MSE Series is a working Grade 1 storeroom lock with latch bolt, guard bolt and deadbolt, so it is not used on an inactive leaf. The Schlage L0170 is a Grade 1 heavy duty half dummy trim in the L Series, non-keyed, for 1-3/4 inch doors. If the pair is residential or decorative brass, the Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan are dummy mortise entrance locksets in matching decorative patterns.
How fast can I get the TownSteel MSE-R-T-35-626 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 TownSteel MSE-R-T-35-626 come with a warranty?
Absolutely. The TownSteel MSE-R-T-35-626 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 TownSteel MSE-R-T-35-626?
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 TownSteel MSE-R-T-35-626 from ZenSupply?
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