Abstract: A storage rack apparatus including a locking mechanism that secures a bracket (10) to a supporting member such as a wall-mounted rail (48) or panel (54). A securing bar (36) is rotatably attached to the body (12) of the bracket and is rotatable between unlocked (FIGS. 3 and 6) and locked (FIGS. 4, 5, 7, and 8) positions. In the unlocked position, an unlocking portion (44) of the securing bar does not make contact with the rail or panel. In the locked position, a locking portion (46) of the securing bar makes forced contact with a front surface (50, 62) of the supporting member, thereby placing the hooks (24, 26) of the bracket into frictional engagement with the rear surface (16) of the supporting member to resist movement of the bracket from its installed position.