Hollow wall anchor

A fastening member for a hollow wall comprising a thin sheet-metal anchor having a substantially flat head portion and a hole therethrough, said hole having an axis perpendicular to the head, a substantially flat neck in a plane perpendicular to the head containing the axis, said neck having an elongated opening therethrough the opening extending in the plane of the neck the full length of the neck along the axis and, first and second, thin, flat sheet metal spreadable anchoring blades extending from said neck in the direction of the axis, said blades being coplanar with said neck, each of said blades having an inner and an outer surface, the inner surface of the first blade in close contact with the inner surface of the second blade, at least one of said blades terminating in a point, and a generally elongated fastener having a diameter commensurate with the hole in said head whereby insertion of the fastener in the hole and through the neck spreads the blades angularly.