Installation Instructions Drill appropriate size hole. Hold metal Hold ends of straps together betwee Place thumb between straps at wall. Place item over flange. Insert bolt and channel flat alongside plastic straps & thumb & forefinger and pull toward you Push thumb side to side, snapping off tighten until snug against item, then stop. glide channel through the hole. until channel rests behnd wall. Ratchet straps level with flange of cap. Use machine screw or bolt to match Minimum clearance behind wall: cap along straps with other hand until thread in metal channel. only 17%". flange of cap is flush with wall.