1-1/8″ Dummy Mortise Cylinder Plug – Solid Brass with Chrome-Plated Face for Mortise Lock Prep Covering

Condition: Used – Minor surface wear and small scuffs on chrome face; threads and body structurally intact. No signs of cross-threading or damage. Face ring included.

This 1-1/8” dummy mortise cylinder plug is a non-functional, solid brass insert with a chrome-plated face, designed to fill unused mortise lock cylinder holes. Intended for commercial or institutional door applications, it provides a tamper-resistant and aesthetically clean solution where a keyed cylinder is not needed. This type of plug is commonly used when a mortise lockset is converted to electronic or keyless operation, or when a cylinder prep needs to be covered for inactive doors or panels.

Threaded to standard mortise specs (1-5/32″ x 32 TPI), this dummy plug is compatible with nearly all major mortise lock manufacturers. The included face ring allows for secure and flush installation. While the unit is used, it retains its full mechanical integrity and function for retrofit and cosmetic blanking.

🔧 Features:

• Type: Dummy Mortise Cylinder Plug
• Length: 1-1/8″
• Thread Size: Standard 1-5/32″ mortise threading
• Body Material: Solid Brass
• Finish: Satin Chrome (626/US26D equivalent)
• Included: Removable face ring/trim ring
• Compatibility: ANSI mortise lock cylinder preps
• Non-Keyed/No Cam: Serves purely as a hole filler

🏢 Applications:

• Inactive doors where cylinder holes must be covered
• Electric strike or card access systems (no key required)
• Retrofit and conversion projects from keyed to keyless
• Closets, storage rooms, or hallway doors not requiring keyed entry
• Blank plug for exit devices, mortise locks, and access panels

🔄 Cross-Referenced / Equivalent Models:

• Sargent 34-0737 Dummy Cylinder Plug
• Yale 2157 Dummy Mortise Cylinder
• Corbin Russwin 2000-037
• Schlage 20-007 Dummy Plug
• Best 1W7 (dummy mortise cylinder 1-1/8”)
• Falcon 985 Dummy Mortise Cylinder

🔁 Comparable Products:

• Marks USA 91 Dummy Cylinder
• Arrow DC101 (1-1/8” mortise plug)
• DormaKaba dummy mortise filler plug
• Stanley Commercial Dummy Plug 1-1/8”
• LSDA Dummy Mortise Cylinder Chrome Finish

🔩 Can Be Used With:

• Sargent 8200, 10 Line, 11 Line mortise lock bodies
• Corbin Russwin ML2000 mortise locks
• Schlage L-Series mortise locks
• Yale 8800 mortise lock series
• Von Duprin 88/99 mortise exit devices
• Any ANSI-compatible mortise lock housing with 1-1/8” cylinder prep

🛑 Trademark Notice:

All product and brand names mentioned, such as Sargent, Schlage, Yale, Corbin Russwin, etc., are trademarks™ or registered® trademarks of their respective owners. Their use here is for compatibility and reference purposes only and does not imply affiliation or endorsement.

Related:

• Mortise lock cylinder hole filler
• Non-keyed lock plug
• Chrome face dummy cylinder
• 1-1/8″ mortise blank plug
• Commercial door cylinder insert
• Brass threaded filler for door hardware
• Dummy plug for electronic lock retrofit

Common Requests:

1. “Replace keyed cylinder with blank plug on commercial mortise lock”
2. “1-1/8 dummy mortise plug for retrofit use”
3. “Chrome mortise filler cylinder with face ring”
4. “Non-functional cylinder for security door panel”
5. “Blank plug for Sargent or Schlage mortise lock hole”

P126; GT00138