Heavy duty cleats, when properly installed, are rated for 100 pounds per foot and sit tight against the wall. This helps to prevent thieves and vandals from getting their hands or fingers behind the frame, making it exceptionally difficult to remove the frame from the wall.
The 42" cleat is made of heavy duty aluminum and features 11 elongated holes pre-drilled 4" on center, and can hold a maximum of 350lbs.
Priced per each.