Marks USA MARM9901 M9901 Cylin...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$102.96
$51.90
Marks USA M9901 Cylinder Dogging Kit for M9900, 36"

Marks USA MARM9901 M9901 Cylinder Dogging Kit for M9900 Panic Devices, 36"

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Model: M9901-26D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$102.96
$51.90
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Marks USA M9901 Cylinder Dogging Kit for M9900 Panic Devices, 36"

The Marks USA M9901 is a cylinder dogging kit engineered to replace hex dogging on M9900 series panic devices for 36" door applications. This kit fits 3 devices and includes a 1-1/4" mortise cylinder with standard cam, providing a keyed dogging solution for commercial panic hardware. Constructed of stainless steel, the M9901 delivers durable, professional-grade performance for high-traffic commercial door openings.

Key Features

  • Cylinder Dogging Conversion: Replaces hex dogging on M9900 series panic devices, upgrading to a keyed cylinder dogging operation for enhanced security and convenience.
  • Multi-Device Compatibility: Fits 3 devices, making it an efficient solution for multi-point panic hardware installations on 36" doors.
  • Included Mortise Cylinder: Comes complete with a 1-1/4" mortise cylinder with standard cam — no additional cylinder purchase required.
  • Stainless Steel Construction: Product material is stainless steel, providing corrosion resistance and long-term durability in demanding commercial environments.
  • Deadlocking Latch: Features a deadlocking latch type with a 1" x 2-1/4" latch front and 2-3/4" backset for reliable latching performance.
  • Keyed Operation: Cylinder x Thumbturn (single cylinder deadbolt) function allows keyed control of the dogging feature from the secure side.
  • Commercial-Grade Application: Designed specifically for commercial door hardware installations where code-compliant panic device dogging is required.

Technical Specifications

  • Latch Front: 1" x 2-1/4"
  • Product Group: Mechanical Locks
  • Product Subgroup: Bored Locksets
  • Product Type: Deadbolts
  • Subcategory: Cylindrical Locks
  • Commercial/Residential: Commercial
  • Keyed: Yes
  • Function Description: Single Cylinder Deadbolt
  • Product Attribute: Deadbolts
  • Product Function: Cylinder x Thumbturn
  • Latch Type Specification: Deadlocking
  • Product Material: Stainless Steel
  • Product Category: Mechanical Locks
  • Backset (Distance): 2-3/4"
  • 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 M9901?

Marks USA M9901 cylinder dogging kits are built from stainless steel and engineered to integrate seamlessly with M9900 series panic devices, delivering a reliable keyed dogging upgrade for 36" commercial door openings. With a complete 1-1/4" mortise cylinder and standard cam included, the M9901 simplifies the conversion from hex dogging to cylinder dogging across up to 3 devices, making it a practical and professional choice for commercial door hardware applications.

Manufacturer Resources

Marks USA Product Catalog

Product Specs

Latch Front:
1” x 2-1/4”
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Deadbolts
Subcategory:
Cylindrical Locks
Commercial/Residential:
Commercial
Keyed:
Yes
Function Description:
Single Cylinder Deadbolt
Product Attribute:
Deadbolts
Product Function:
Cylinder x Thumbturn
Latch Type Specification:
Deadlocking
Product Material:
Stainless Steel
Product Category:
Mechanical Locks
Backset (Distance):
2-3/4"
Department:
Door Hardware

Marks USA M9901-26D – Frequently Asked Questions

1) What does the Marks USA M9901 dogging kit actually do to an M9900 panic device?
The M9901 converts an M9900 series panic device from hex dogging to key cylinder dogging. Instead of holding the pushbar depressed with an Allen wrench, staff use a key to dog the device so the door stays push-pull during business hours and re-latches when the cylinder is turned back. It's the usual fix when a building doesn't want a loose hex key floating around, since anyone holding that wrench can leave an opening unsecured.
2) Does the Marks M9901 cylinder dogging kit come with the cylinder, or do I need to order one separately?
The cylinder is included. Each M9901 kit ships with a 1-1/4 inch mortise cylinder with a standard cam, so there's no separate cylinder line to add to the order. Pick the cylinder finish when you order: US10B dark bronze or US26D satin chrome.
3) How many doors does one Marks M9901 dogging kit cover?
One M9901 kit covers three devices. If you're converting a bank of exit doors to keyed dogging, count the panic devices rather than the openings, then divide by three. A pair of doors with a device on each leaf is two devices, not one.
4) Will the M9901 dogging kit fit a 48 inch door or only a 36 inch one?
This M9901 kit is the 36 inch version, matched to M9900 panic devices sized for a 36 inch door. Marks sizes the dogging kit to the device, so a wider opening running a longer M9900 device needs the kit built for that device length, not this one.
5) Can I use the Marks M9901 cylinder dogging kit on a fire rated exit door?
No. Dogging of any kind, hex or cylinder, is not permitted on a fire exit device, because the latch has to stay engaged to keep the door rated. The M9901 is for non-rated commercial exit openings where the door is legitimately held push-pull during occupied hours. On a fire rated opening you leave the M9900 undogged and use an electric latch retraction or a trim-based solution instead.
6) I have hex dogging on my Marks exit devices now. Is switching to cylinder dogging a field retrofit or do I replace the device?
It's a field conversion. The M9901 kit is made to replace the hex dogging on an existing M9900 series device, so the panic hardware stays on the door and only the dogging mechanism changes. Confirm the device is an M9900 series and sized for a 36 inch door before ordering, since the kit is matched to that device.
7) Which deadbolt takes an interchangeable core so it can go on the building master key system?
The Marks USA M9901 arrives with a 1-1/4 inch mortise cylinder with standard cam included, so the cylinder ships with the kit. A facility that pins its own cores wants hardware supplied less core instead: Arrow E61 26D IC is a Grade 2 single cylinder deadlock with SFIC prep, less core, for 1-3/8 inch to 1-3/4 inch doors. Deltana CL200LAIC is a Grade 2 interchangeable core deadbolt with a 2-3/4 inch backset supplied without a cylinder, and Delaney LM Series 301702 is a Grade 1 single cylinder less core deadbolt in dull chrome US26D.
8) Is the Marks M9901 dogging cylinder keyed to match the rest of my building?
The M9901 ships with a keyed 1-1/4 inch mortise cylinder with a standard cam. A standard mortise cylinder in that length is the common size in commercial exit hardware, so a locksmith can swap in a cylinder of your own keyway and key it into the existing system if you're standardizing a facility on one key.
9) Is the Marks M9901 dogging kit suitable for a high traffic or exterior opening?
Stainless steel construction, and it's a commercial-rated part, so it holds up in corridors, schools, warehouses and other openings that cycle hard all day. Stainless also handles exterior and washdown exposure better than a plated zinc part.
How fast can I get the Marks USA M9901-26D 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 M9901-26D come with a warranty?
Absolutely. The Marks USA M9901-26D 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 M9901-26D?
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 Marks USA M9901-26D 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.
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