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Trim Plate for Mortise Lock 15142/15143 – Sliding Patio Door
- Regular price
- $4.79
- Regular price
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- Sale price
- $4.79
- Unit price
- per
Standard mortise lock trim plate for sliding glass patio door Fits mortise lock #15142 with 45 degree slot or #15143 with vertical slot. Standard 1/2 in. deep. Faceplate: 1 in. x 5-3/4 in. Instal... -
Shallow Mortise Lock Trim Plate, 1" x 5-3/4", 3/8" Deep
- Regular price
- $5.17
- Regular price
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- Sale price
- $5.17
- Unit price
- per
Shallow mortise lock trim plate. Shallow 3/8 in. deep. Faceplate: 1 in. x 5-3/4 in.es Installation screw holes spaced at 5-1/4 in.es. Mortise lock screws holes spaced at 3-11/16 in.es. ...
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1 point locks, also known as single point or plate locks, are engineered to secure sliding patio doors with a straightforward, central locking action. Commonly used in residential and multifamily properties, these locks are essential for maintaining the security and daily usability of glass doors. Plate locks operate by engaging a single locking mechanism between the door and the jamb, making them a popular solution for door systems that do not require multi-point locking.
Applications and Use Cases
Single point locks are standard on many sliding glass doors, especially those from trusted manufacturers like AmesburyTruth. They are typically used when a simple yet effective locking method is preferred, providing reliable security without the complexity of multi-point systems. Whether you're repairing a worn-out lock or upgrading for smoother operation, these components ensure your door latches securely every time.
Compatible Brands and Models
All products in this collection are genuine AmesburyTruth parts, designed for compatibility with specific mortise lock bodies such as #15142 (featuring a 45-degree slot) and #15143 (with a vertical slot). These replacement trim plates and plate locks fit standard 1/2 inch thick doors, which are typical in many residential and light commercial sliding patio doors. Homeowners or installers seeking authentic replacement solutions will find these products maintain both function and finish consistency across AmesburyTruth-equipped doors.
- Standard mortise lock trim plate available for sliding patio doors
- Fits mortise lock bodies with either 45-degree or vertical slot orientation
- Constructed from durable materials for long-lasting operation
- Easy to install for both professionals and experienced DIYers
Replacement and Installation Tips
When replacing a plate lock or trim plate, always verify the orientation of your existing mortise lock slot to select the correct model. Most installations require only basic hand tools and careful alignment of the new plate with the door cutout. For best results, consult any original hardware markings or reference guides, and ensure all fasteners are tightened evenly to avoid misalignment. If your door uses a shallow mortise lock, consider your replacement options such as the shallow mortise trim plate for proper fit. For standard mortise locks, see the standard mortise trim plate.
Why Choose Genuine AmesburyTruth Plate Locks?
As an authorized reseller, TruthParts offers only authentic AmesburyTruth hardware, ensuring your sliding patio door operates as designed. Using genuine replacement parts helps maintain the door's security, smooth action, and long-term durability while preserving warranty coverage where applicable. These plate locks and trim plates offer optimal fit, finish, and reliability that aftermarket solutions often cannot match.
Frequently Asked Questions
How do I know which trim plate fits my sliding door?
Check the orientation of the mortise lock slot (45-degree or vertical) and the door thickness. Match these details to the product description for a proper fit.
Can I replace a single point lock myself?
Yes, most replacements can be completed with basic tools and careful attention to hardware orientation. Always follow the specific instructions for the lock or trim plate model.
Are these locks compatible with all AmesburyTruth sliding patio doors?
The listed plate locks and trim plates are designed for common AmesburyTruth mortise lock bodies, but always verify compatibility with your specific door model before purchasing.


