[. . . ] 11 / 08 Caution: This product is designed for wall installation only. [. . . ] Due to the various wall constructions, careful consideration should be given to the selection and use of fasteners. Wall Construction Concrete Wood Stud Metal Stud or Concrete Block Fastener Kit Model Number A101 (3/8" cap screws & hollow set drop-in anchors) A105 (3/8" lag screws) A109 (3/8" cap screws & anchors) Hole Size 5/8" 3/16" 3/4" 3. The vertical channel must be a 1-5/8" wide UnistrutTM P3000 T or SL style channel or its equivalent or stronger. Use a minimum of two installer provided 3/8" diameter screws and Unistrut nuts to attach the CM-UPC Weldment to the channel. Secure the Weldment with the fasteners provided by passing through both the Weldment and the channel. Insert a 1-1/2" NPT threaded pipe (not included) securely into the CM-UPC Weldment. [. . . ] TV or plasma mount models QLC-1622, QLC-2128, QLC-2329, QLC-2532, QLC-2937, QLC-2935, QLC3440, QLC-3543, QLP-2735, and QLP-3642 are available through authorized Da-Lite dealers. Figure 1 [. . . ]