Marks USA MESC600F Lever/Escut...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$270.00
$84.50
Marks USA Marks USA MESC600 Storeroom Lever/Escutcheon Exit Device Trim MESC600F

Marks USA MESC600F Lever/Escutcheon Storeroom Exit Device Trim for M9900 Series

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Model: MESC600F-26D
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$270.00
$84.50
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Marks USA MESC600F Lever/Escutcheon Storeroom Exit Device Trim for M9900 Series

The Marks USA MESC600F is a professional-grade Lever/Escutcheon Storeroom Exit Device Trim engineered specifically for the M9900 Series Touchbar Exit Devices. Designed for commercial applications on wood or metal doors with a 1-3/4" door thickness and a minimum stile size of 3-1/2", this trim delivers reliable storeroom function with a 1-1/4" mortise cylinder type. The field-reversible hand configuration and standard Marks "C" Keyway KNK cylinder make it a versatile solution for demanding commercial environments, backed by a Lifetime Limited Warranty.

Key Features

  • Storeroom Mechanical Function: Provides secure storeroom function, keeping the exterior lever locked at all times while allowing free egress from the inside via the exit device touchbar.
  • M9900 Series Compatibility: Designed exclusively for use with Marks USA M9900 Series Touchbar Exit Devices, ensuring seamless integration and reliable performance.
  • Door Thickness & Stile Requirements: Compatible with 1-3/4" door thickness and requires a minimum stile size of 3-1/2" for proper installation on wood or metal doors.
  • 1-1/4" Mortise Cylinder Type: Accepts a 1-1/4" mortise cylinder, providing a secure and industry-standard keying interface for commercial access control.
  • Field Reversible Hand: The field-reversible handing allows the trim to be configured for left- or right-hand doors on-site, reducing inventory requirements and simplifying installation.
  • Standard Marks "C" Keyway KNK Cylinder: Includes the standard Marks "C" Keyway KNK cylinder for the panic device, offering a familiar and widely supported keying platform.
  • Wood or Metal Door Compatibility: Suitable for installation on both wood and metal door constructions, providing flexibility across a wide range of commercial door applications.
  • Lifetime Limited Warranty: Backed by a Lifetime Limited Warranty, reflecting Marks USA's commitment to long-term product reliability and customer confidence.

Certifications & Compliance

  • UL Listed — UL305
  • Commercial Grade
  • Lifetime Limited Warranty

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Commercial/Residential: Commercial
  • Subcategory: Exit Devices - Rim
  • Product Type: Exit Device Trims
  • Features: Key Entry Exit Device Trim
  • Series: M9900 Touchbar
  • ADA Compliant: No
  • Cylinder Classification: Conventional Cylinder
  • Product Category: Exit Devices and Trim
  • 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 Marks USA MESC600F?

Marks USA MESC600F Exit Device Trim delivers professional-grade reliability with a field-reversible design, 1-1/4" mortise cylinder compatibility, and UL305 listing for verified performance in commercial applications. Engineered for the M9900 Series Touchbar Exit Devices and suitable for 1-3/4" wood or metal doors with a minimum 3-1/2" stile, this trim is built to meet the demands of high-traffic commercial environments where dependable storeroom function and long-term durability are essential.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Device Trim
Commercial/Residential:
Commercial
Subcategory:
Exit Devices - Rim
Product Type:
Exit Device Trims
Features:
Key Entry Exit Device Trim
Series:
M9900 Touchbar
ADA Compliant:
No
Product Function:
Storeroom
Cylinder Classification:
Conventional Cylinder
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Marks USA MESC600F-26D – Frequently Asked Questions

1) Will the Marks USA MESC600F trim work on my exit device, or is it only for M9900 devices?
The MESC600F lever/escutcheon trim is built for Marks USA M9900 Series touchbar exit devices and nothing else. If the device on your door is a Von Duprin, Sargent, Falcon or similar rim device, this trim won't mount to it. Match the trim to the device brand and series first; for a Von Duprin 22 Series device, for example, the Von Duprin 210 and 230 exit trims are the ones that fit that chassis.
2) What does storeroom function mean on an exit device trim, and is it the right choice for a mechanical room door?
Storeroom means the outside lever is locked at all times and never unlocks by turning; a key retracts the latch so you can get in, and anyone inside always gets out by pushing the touchbar. That's exactly what you want on a mechanical room, storage room, or any door that must stay secure around the clock. If you'd rather have the lever unlock and stay unlocked for part of the day, storeroom is the wrong function - look at an entry or classroom trim instead.
3) Will the MESC600F fit a 1-3/4 inch door with a 3-1/2 inch stile?
That is exactly its window. The MESC600F trim is specified for 1-3/4 inch doors and needs a stile of at least 3-1/2 inches, on either wood or metal construction. Aluminum storefront with a narrow 2 inch stile won't take it - that's a narrow stile application and needs a narrow stile trim built for it. If your door is thinner than 1-3/4 inches, a trim with a wider thickness range such as the Tell EDELT80 storeroom trim (1-3/8 to 1-3/4 inches) or the Pamex E9000 storeroom trim (1-3/8 to 2 inches) covers that range.
4) Do I have to order the MESC600F handed left or right?
No handing to specify. The MESC600F is field reversible, so one part covers both left and right hand doors and you flip it on site. For a property manager or a shop stocking spares, that means one trim on the shelf instead of two.
5) Does the Marks USA MESC600F come with a cylinder, or do I order one separately?
It ships with the standard Marks "C" keyway KNK cylinder for the panic device, so it's ready to key out of the box. The interface is a 1-1/4 inch mortise cylinder, conventional (not interchangeable core), so if you're keying into an existing system you can swap in a 1-1/4 inch mortise cylinder in your own keyway with the correct cam.
6) Is the MESC600F ADA compliant for an accessible opening?
No. The MESC600F is not ADA compliant, so it should not be specified where the opening has to meet accessibility requirements for the operable hardware. On an accessible door you'd need trim listed as ADA compliant.
7) I want to badge in at this door instead of using a key - what exit trim do I use?
The MESC600F is a mechanical trim with a conventional 1-1/4 inch mortise cylinder, so entry is by key. To put the opening on an access control system, use electrified trim instead: the Command Access ET15, ET25 and ET26 electrified exit trims run at 12V or 24V with fail safe or fail secure options, the ET26 being Grade 1 with a field reversible design. Command Access also makes the 230L electrified trim for Von Duprin V96/36/23 series devices, and Falcon offers the 510L-FSA/FSE electrified heavy duty lever trim for the 25 series. Each is built for a specific device family, so the trim has to be chosen against the exit device on the door.
8) What is the closest equivalent to the Marks USA MESC600F storeroom exit device trim from another brand?
The Tell EDELT80 exit device escutcheon lever trim is the nearest match in form and function: it is an escutcheon-style lever trim in storeroom function, the same arrangement as the MESC600F, which is a lever/escutcheon trim in storeroom function. The Tell EDELT80 covers a 1-3/8 to 1-3/4 inch door thickness range. The Pamex E9000 is a second storeroom-function escutcheon lever trim, built as a Grade 1 heavy duty trim covering 1-3/8 to 2 inch doors. The one thing neither substitutes on is the device itself - the MESC600F is engineered for the Marks USA M9900 Touchbar series, and a trim from another maker must be matched to that maker's device chassis.
9) What storeroom exit trim should I use if my doors are thicker or thinner than 1-3/4 inches?
The MESC600F is built for a 1-3/4 inch door. For a range of door thicknesses on the same job, the Pamex E9000 storeroom L3 lever heavy duty exit device trim lists a 1-3/8 to 2 inch door thickness range, and the Tell EDELT80 storeroom escutcheon lever trim lists 1-3/8 to 1-3/4 inch. Both hold storeroom function, so the outside lever stays locked and the key retracts the latch, with free egress from the push side.
10) I need a keyed lever trim for an exit device but on a Schlage C keyway instead of the Marks C keyway - what are my options?
The MESC600F ships with the standard Marks C keyway KNK cylinder, which suits a building already keyed on the Marks system. If the facility is standardized on Schlage C, the Design Hardware KIL storeroom function exit trim is a Grade 1 storeroom trim built for the Schlage C keyway with a flat lever, for the 1000 and 2000 series exit devices. Design Hardware also offers the KIL in entry function on the same Schlage C keyway if the outside lever needs to be unlockable by key rather than permanently locked.
11) My classrooms need the outside lever to be lockable and unlockable by key rather than always locked - what trim does that?
That is classroom function, not storeroom. The MESC600F holds the outside lever locked at all times. For a lever the staff can leave unlocked, the Falcon 510L is a heavy duty classroom function exit device trim for the 24/25 series, the Falcon 179L is a medium duty classroom lever control trim for the 1790 series, and the Accentra 446F is a Grade 1 classroom function trim with the Augusta lever. Dexter also lists the ED1000T-CLRM-TP-NC, a Grade 1 classroom trim in a thumbpiece and pull plate arrangement rather than a lever.
12) The MESC600F is not ADA compliant - what should I look at for a door on an accessible route?
The MESC600F is listed as not ADA compliant. Where an accessible route requires hardware operable without tight grasping or twisting, a thumbpiece or pull arrangement is the usual direction: the Dexter ED1000T-CLRM-TP-NC pairs a thumbpiece with a pull plate and cylinder in Grade 1 classroom function, and the Tell EDTHP53 is a thumbpiece trim in entry function for 1-3/8 to 1-3/4 inch doors. Confirm the specific operating force and mounting height against your local code for the facility type.
13) Can I get several of these keyed alike so one key opens every door?
Yes. Keying is a required choice at order: keyed different (the standard) or keyed alike, which puts multiple trims on one key. Keyed alike is the usual pick when a property manager or facility wants one key for a run of storage or mechanical doors; keyed different is what you want when each tenant or department holds its own key.
14) Is the Marks USA MESC600F UL listed for a panic hardware application?
UL Listed under UL305, the standard for panic hardware. That covers the trim for use as part of the M9900 touchbar exit device assembly on commercial openings.
15) What is the difference between a storeroom exit trim like the MESC600F and a nightlatch trim?
Storeroom function on the MESC600F keeps the outside lever locked at all times; the key retracts the latch to admit, and the lever never becomes free-turning. Nightlatch trim behaves differently: the Sargent 704ET night latch lever exit device trim and the Corbin Russwin VT957ET nightlatch escutcheon trim use the key to retract the latch on a lever that does not otherwise operate the device, and the Sargent 704-ETL night latch trim adds a key retract function. The practical distinction for a locksmith is what the lever does between key uses - buy nightlatch when the opening is a keyed-entry-only exterior door, storeroom when the lever must present as a fixed, always-locked pull.
16) Can I use a passage or dummy exit trim in place of a keyed storeroom trim?
No - they do different jobs. The MESC600F is a keyed storeroom trim, so the outside lever is locked and a key is required to get in. Passage trim such as the Corbin Russwin 3310AET for the ED300 series, the x810ET for the ED4000 series, or the x910ET for the ED5200/ED5400/ED5800 series operates the device from the outside with no key at all. Dummy trim such as the Von Duprin 230DT or the Detex 02BN dummy S-lever with blank escutcheon does not operate the device at all - it is a fixed pull. If the door must be secured against outside entry, only the keyed storeroom arrangement does that.
17) Is there a simpler trim than a keyed lever escutcheon if the door only needs to be exited, never entered?
Yes. Where the outside of the door never needs to open, exit only pull trim replaces the whole keyed lever arrangement. BEST offers the 1701 exit only pull trim for wide stile applications on 2000 series exit devices, the 2001 narrow stile exit only pull trim with cover plate, and lever versions in the 2901 narrow stile and 4901 wide stile exit only trims. The MESC600F takes the opposite approach - it carries a cylinder so the door can be keyed open from outside while the touchbar handles egress.
18) Which keyed lever exit trims are field reversible like the Marks MESC600F?
The MESC600F is field reversible, so one part covers left and right hand openings and a stocking distributor does not need to split inventory by hand. Among comparable trims, the Sargent 704ET night latch lever exit device trim is also field reversible, as is the Command Access ET26 electrified exit trim, which pairs a field reversible design with Grade 1 construction. Note that those two carry different functions than the storeroom arrangement on the MESC600F.
19) Can I put a keypad on the door instead of a keyed exit trim, and keep the exit device?
Yes, with pushbutton exit trim in place of a cylinder trim. The Dormakaba E-Plex 201U is an electronic pushbutton exit trim in the E-Plex 2000 series, built for wide stile openings, and the Dormakaba PowerPlex P201U is an exit trim for rim, mortise and surface vertical rod devices. The MESC600F takes a different route to the same access control - a conventional 1-1/4 inch mortise cylinder on the Marks C keyway, keyed different or keyed alike.
20) What looks like a substitute for a lever escutcheon exit trim but is not?
Two things get mistaken for it. First, cylinder-only assemblies: the Von Duprin 110MD-NL is a night latch cylinder assembly for 22, 55 and 98/99 series exit trim - it supplies the keyed cylinder side of the opening, not a lever and escutcheon. Second, blank escutcheon trim: the Falcon 212L is a blank escutcheon lever trim for the 20 series and the Von Duprin 210K-BE is a knob with blank escutcheon - blank means no cylinder prep, so there is no keyed entry at all. The MESC600F is a keyed lever and escutcheon assembly with a mortise cylinder, so it does both jobs those parts split.
21) I want a keyed lever trim where the outside lever can be left unlocked during business hours - what is the alternative to storeroom?
That is entry or entrance function. The Design Hardware LE08 is a Grade 1 entry function exit trim with a flat lever and escutcheon for the 1000R and 2000R exit devices, and the Tell EDELT53 is an entry function escutcheon lever trim covering 1-3/8 to 1-3/4 inch doors. Delaney lists the 500L exterior trim in entrance function across CT, MD and SD lever styles. The MESC600F is the storeroom counterpart, where the outside lever stays locked and the key admits every time.
22) What finishes does the Marks USA MESC600F storeroom trim come in?
Two: 626 satin chrome and US10B oil-rubbed dark bronze. Satin chrome is the standard commercial finish and is what most schools, offices and hospitals already have on the openings, so it's the safe match for a building standard. US10B is the darker choice where the door hardware is meant to blend with bronze or dark anodized storefront.
23) What finish options should I expect when matching an exit trim across a building?
The MESC600F is offered in US10B oil-rubbed dark bronze and 626 satin chrome, the two finishes most often specified across commercial openings. Peer trims are commonly ordered in a satin finish as well - the Tell EDELT80 storeroom escutcheon lever trim and the Tell EDPT exit device pull trim both carry a 26D satin chrome designation, as does the Design Hardware 2P-03NL night latch pull trim in 32D satin stainless. Matching a satin chrome trim to 626 is the usual path when standardizing hardware across a fleet of doors.
How fast can I get the Marks USA MESC600F-26D 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 Marks USA MESC600F-26D come with a warranty?
Absolutely. The Marks USA MESC600F-26D 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 Marks USA MESC600F-26D?
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