Peerless-AV CMJ310 Unistrut and Structural Ceiling MountPeerless AV Unistrut and Structural Ceiling Plates attach to standard 1 5 8 x 1 5 8 unistrut or to a solid structural surface. Unistrut fittings and attachment hardware not included Unit has 1 1 2" 11. 5 NPT fitting for attachment of extension column Attaches directly to standard Unistrut (1 5 8" x 1 5 8") or to solid structural ceiling Peerless AV CMJ310 Specs Construction Anodized Metal Dimensions 8 x 8" (20. 32 x 20. 32cm) Weight 4 lbs Packaging