Arlington has introduced adjustable mounting brackets for low voltage, Class 2 wiring.

Arlington’s non-metallic adjustable mounting brackets are ideal for low voltage installations where the final wall thickness is not known.
Set for a 1/2-inch thick wall, they adjust to accommodate wall finishes up to 1-1/2-inch thick. The mounting bracket delivers extra-secure mounting to wood or steel studs in new construction, and allows you to fine-tune depth with the accessible adjustment screw.