High quality drywall dowel. In the set you will find a dedicated BIT for the screwdriver, which will significantly facilitate the screwing of the dowel into the board.
Quick installation pin 8x60, consists of a tee made of polyethylene and a countersunk screw made of galvanized steel. Designed to perform fastening of, for example, perforated tape or mounting sheet of air conditioners.
Screw the stand (for example, with a quick-mounting pin), and then put a clamp through it. Such a clamp greatly speeds up the installation of air conditioning or recuperation systems.