Don-Jo EF-161 Cylindrical Lock Edge Filler Plate

The Don-Jo EF-161 Cylindrical Lock Edge Filler Plate is a professional-grade hardware solution designed to seal and secure door edges during hardware retrofits. This cylindrical latch filler is specifically engineered to fill the 2-1/4" cutout in the edge of a door when a cylindrical lock or latch bolt has been removed and is no longer required. By utilizing the EF-161, you restore the door's structural integrity and provide a clean, flush surface that is essential for a professional finish.

Measuring 1-1/8" x 2-3/4", this plate fits the industry-standard "161 prep" found on the majority of commercial and residential metal and wood doors. It is an indispensable solution for door edge repair in facilities such as schools, hospitals, and office buildings where "blanking out" unused hardware holes is required for both aesthetics and security.

Key Features & Performance

• Standard 161 Prep Coverage: Precision-engineered to fit the standard 2-1/4" x 1-1/8" cylindrical lock prep, providing a seamless "drop-in" fit for most commercial door edges.
• Structural Reinforcement: Fills the cavity left by the latch bolt, preventing the door edge from weakening and protecting the internal door core from debris.
• Professional Grey Primer Finish: Supplied in a high-quality grey primer, serving as an ideal base for on-site painting to match the door’s existing finish perfectly.
  
• Fire Safety Compliance: Properly filling hardware voids in the door edge is a critical requirement for maintaining the rating of fire-rated door assemblies, preventing smoke bypass.
• Quick Installation: Each plate is packaged with two machine screws for a fast and secure attachment to the existing latch reinforcement tabs.
  

Technical Details & Specifications

• Brand: Don-Jo
• Model Number: EF-161
• Height: 2-1/4"
• Width: 1-1/8"
• Material: Durable Steel
• Finish: Grey Primer (PC)
• Application: Cylindrical Lock Latch Bolt Hole Filler
• Fasteners: Includes 2 machine screws. For high-traffic or high-security areas, these can be reinforced with thru bolts to ensure the plate remains permanent and vibration-resistant.
  

Why Choose the Don-Jo EF-161?

The Don-Jo EF-161 is the premier choice for facility managers and locksmiths who need to "clean up" a door after a hardware transition. Leaving an open latch hole in a door edge is not only an eyesore but a potential safety hazard; this cylindrical lock filler plate offers a permanent, cost-effective way to bridge the gap. Its industrial-strength construction ensures a professional result that protects the door assembly and enhances the building's overall appearance.