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Home / Assemblies and Fasteners / Picture Frame Backboard Connecting Plate, Straight Connector, Flat Iron Plate, Flat Angle Bracket, Furniture Fastener, Black Corner Reinforcement Plate

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Assemblies and Fasteners
Origin -
Material Cold-rolled Steel
Color Matte Black
Finish Type Powder Coated
Connector Shape Straight Flat Plate
Primary Application Picture Frame Backboard Assembly
Secondary Application Furniture Corner Reinforcement
Mounting Hardware Screws Not Included
Corrosion Resistance High
Package Quantity 20 Pieces per Pack
Weight Capacity Suitable for Light to Medium Duty Frames

6 reviews

A

Anonymous

Mar 23, 2026

Rating: 5/5

Sturdy and discreet

I used these to repair an old wooden cabinet corner. They are strong enough to hold the joint tight and the matte black makes them almost invisible against the dark wood.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Essential for frame makers

If you make frames professionally, keep a box of these handy. They are much better than trying to nail small strips of wood. Very consistent quality across the pack.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Simple and effective solution

Straightforward product that does exactly what it says. The flat design ensures the frame hangs flush against the wall without any bumps from the connector.

A

Anonymous

Mar 18, 2026

Rating: 3/5

Works well but screws sold separately

The plates themselves are fine, but I was disappointed that no screws were included. Had to run to the hardware store to find matching black screws which delayed my project.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Good value, minor finish inconsistency

Overall a great product for the price. One or two plates had a tiny scratch on the coating, but it doesn't affect functionality. They hold the backboards securely.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Perfect for custom framing projects

These plates are exactly what I needed to reinforce the back of my large custom frames. The black finish blends in perfectly, and the steel feels very sturdy without being too thick.

5 FAQ

Q: Can I bend these plates if I need a different angle?

A: These are made of cold-rolled steel and are designed to remain straight. Attempting to bend them may crack the powder coating or weaken the structural integrity. We suggest purchasing our L-brackets if you need angled support.

Q: Can these be used outdoors?

A: While the powder-coated finish offers good corrosion resistance, these plates are primarily designed for indoor use. Prolonged exposure to rain or direct sunlight may eventually degrade the coating.

Q: Are these plates pre-drilled?

A: Yes, each plate comes with two pre-drilled holes to facilitate easy and accurate installation into your frame or furniture piece.

Q: What size screws are recommended for these plates?

A: We recommend using #6 or #8 flat-head wood screws, approximately 1/2 inch to 3/4 inch in length, depending on the thickness of your frame material.

Q: Will the black color rub off on white matting?

A: No, the powder-coated finish is cured and stable. It will not transfer color to your matting or artwork under normal conditions.

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