Definition: A Back Plate is an L-shaped metal bracket used in combination with a tapped corner to secure and join the corners of an extruded aluminum picture frame. The back plate is a crucial hardware component for providing rigidity and maintaining precise right angles in metal frames.

How It Works

Fits into the hollow channel of an extruded aluminum moulding.
Aligns with a tapped corner screw to tighten the joint.
Provides hidden support to keep the frame square and durable.

Applications

Metal Frame Assembly: Used primarily in assembling aluminum and Nielsen-style picture frames.
Structural Support: Keeps corners strong under weight, especially with larger frames.
Professional Framing: Ensures clean, seamless corners for gallery-quality finishes.

Advantages

Provides extra strength and stability to frame corners.
Concealed inside the frame for a clean outer appearance.
Reusable and compatible with most extruded aluminum mouldings.

Back Plate

Back Plate

How It Works

Applications

Advantages

Related Terms