Self-locking hanging device

A device for hanging an object on a mounting surface, comprising:

• a mounting bracket comprising a front side, a back side for coupling to the mounting surface, and a track portion, wherein the track portion comprises a pair of lip portions extending away from the front side that define free ends, a pair of rotation portions, a pair of guide portions extending from the pair of lip portions and the pair of rotation portions, and a slot extending between the pairs of guide portions, lip portions and rotation portions;
• and
• a locking arm member for holding an object between the mounting bracket and the arm member mated with the track portion of the mounting bracket such that the arm member is translatable along the track portion, the arm member comprising a tip portion, a base portion positioned at least partially within the slot, and at least one pair of engagement projections extending from the base portion, wherein one of the pairs of guide portions, lip portions and rotation portions are engaged by and positioned between the at least one pair of engagement projections depending upon the position of the arm member along the track portion,
• wherein the lip portions and the arm member are configured such that when the at least one pair of projections engages a portion of the pair of lip portions, the arm member is forced into and retained in a fully closed position with the tip portion being within the slot.