Protect and finish mortise lock installations with durable cover plates that seal gaps and conceal hardware. This guide highlights top options designed to fit common mortise cylinders and strike plates, available in several finishes to match American doors. Each pick covers a standard cylinder or blank area, helping prevent tampering and enhancing door aesthetics without sacrificing function.
| Product | Finish | Key Feature |
|---|---|---|
| M7 Dummy Mortise Cylinder 1-7/8″ (Oil Rubbed Bronze) | Oil Rubbed Bronze | Holes cover mortise cylinder; no visible screws |
| Dummy Mortise Filler Plate 86 Prep Blank (Oil Rubbed Bronze) | Oil Rubbed Bronze | Easy filler plate for removed strike plates |
| Newliplace Mortise Lock Door Plates (Matte Black) | Matte Black | Two plates with key notches and screws |
| Dummy Mortise Filler Plate 86 Prep Blank (Polished Chrome) | Polished Chrome | Chisel opening to size and install |
| M7 Dummy Mortise Cylinder (Brushed Chrome) | Brushed Chrome | Securely covers mortise cylinder; screws hidden |
These selections emphasize compatibility with common mortise systems, straightforward installation, and finishes that resist wear while preserving a clean, professional door appearance.
M7 Dummy Mortise Cylinder Cover Plate – Oil Rubbed Bronze
The M7 cover plate provides a 1-3/4″ diameter hole coverage to securely conceal a mortise lock cylinder when the cylinder is removed. This plate offers a smooth exterior finish with no visible mounting screws, simplifying retrofits or repairs where the lock body remains in place but the cylinder is swapped or absent.
Dummy Mortise Filler Plate 86 Prep Blank – Oil Rubbed Bronze
Designed as a door repair solution, this filler plate fits into an removed strike plate opening and includes screws for quick installation. It comes in multiple finishes including Oil Rubbed Bronze, ensuring a seamless match with existing hardware and door color.
Newliplace Mortise Lock Door Plates – Matte Black
Two matte black mortise plates with key notches and screws are included for interior door applications. These plates fit standard mortise locksets and provide durable edge protection while maintaining a classic, unobtrusive look on the door face.
Dummy Mortise Filler Plate – Oil Rubbed Bronze
Another oil-rubbed option for door repairs, this filler plate is designed to cover an removed strike plate area. It includes necessary screws and supports quick resizing of the opening to accommodate a restored mortise setup.
M7 Dummy Mortise Cylinder – Brushed Chrome
This brushed chrome cover plate securely hides a mortise cylinder hole. It provides a smooth exterior finish with no visible mounting screws, aligned with standard cylinder sizes for straightforward replacement or maintenance of mortise locks.
Newliplace Antique Brass Mortise Plates – 2 Pack
Antique brass plated steel plates for mortise locksets, this pair includes screws for installation and is suitable for classic door styles. They visually pair with vintage hardware while providing functional edge protection around the latch area.
Prime-Line MP9492 Stainless Steel Blank Lock Reinforcer
Stainless steel reinforcer plate designed to reinforce the latch area on doors up to 1-3/4 inches thick. This option protects the door from forced entry and offers a robust base for mortise hardware through a non-recessed plate with included mounting hardware.
MOSECYOU Door Latch Guard Plate – 12”
Edge-mounted latch guard plates offer additional protection for outward-opening doors, covering the gap at the latch to deter prying. This 12-inch model with a 1-inch offset cover provides broad coverage and a hardened stainless steel construction with a matte finish.
Buying Guide: Key Purchase Considerations and Comparisons
- Finish and material: Choose a finish that matches your door hardware (oil rubbed bronze, brushed chrome, matte black, antique brass). Materials range from stainless steel to steel with protective coatings for longevity in high-traffic areas.
- Compatibility: Ensure the plate fits standard mortise lock cylinders and strike plates, as well as door thickness and bore hole sizes. Some plates are designed for specific cylinder diameters (1-7/8″ or 1-3/4″).
- Installation: Look for plates that include mounting screws and pre-cut notches. Filler plates are helpful after removing strike plates or adjusting openings, enabling quick repairs without extensive door work.
- Security versus aesthetics: A latch guard or reinforced plate adds security by reducing prying opportunities, especially on exterior doors. For interior doors, focus on a clean finish that complements existing hardware.
- Finish durability: High-traffic doors benefit from corrosion-resistant finishes and coatings that resist fingerprints and wear over time. Consider lighter finishes for modern interiors and darker tones for traditional doors.
- Hardware integration: Some plates include key notches or holes aligned with mortise locksets. Verify that the included screws and alignment match your specific lock and strike configuration.
- Repairability: Filler plates or blank backplates allow door repairs without fully replacing the lockset. This is helpful during renovations or when upgrading hardware gradually.
- Warranty and availability: Check for manufacturer warranties and easy replacement options in case of wear or damage. Availability across retailers can impact long-term replacements.