Adaptive Technologies MP-1.5NPT-GSA - Gimballed UniStrut Adapter MountUse Adaptive's gimballed strut attachment to suspend loudspeakers, video displays and other objects from Unistrut when attached to angled ceiling and roof structures, up to 90 degrees off vertical. This adapter mounts quickly and permanently to Unistrut channel with 1 2 13 spring loaded nuts (not included) or can be bolted through the strut when space permits. This SwivelMount suspends and locks objects weighing up to 150 lb using standard 1 1 2"