Abstract: A hanging device for mounting directly on a hollow member, and a method of mounting such device, are provided. The hanging device has a mounting member with a first surface for resting flush against an outer surface of the hollow member. A first piercing component has a first leg that projects from the mounting member substantially perpendicular to the first surface thereof, and a second leg that extends at substantially right angles to the first leg. A free end of the second leg has a sharp tip that is insertable in a self-piercing manner through the hollow member. A second piercing component projects from the mounting member substantially perpendicular to the first surface thereof and essentially parallel to the first leg of the first piercing component. A free end of the second piercing component has a sharp tip that is also insertable in a self-piercing manner through the hollow member. A hanging component is also provided on the mounting member.