The AB40 Adapter Bracket can serve as a horizontal adapter, providing a 90-degree bridge between the wall plate and the TV mount lifting arm. This allows the wall plate to lay flat on a horizontal surface such as a large shelf or inside a recessed alcove. Another application for the AB40 Adapter Bracket is as a pass-through support when mounting to thin brick facades or simulated stone panels made from foam, neither of which are strong enough to support the weight of a MantelMount.