Abstract: A positive-locking wall mounting combination has a wall mounting with a hollow cylindrical body having an outer mantle, an inner mantle, and a bottom. The bottom has a slotted hole having a length that is shorter than an inner diameter of an inner circular surface described by the inner mantle. The slotted hole has a longitudinal axis intercepting a center of the inner circular surface. The outer mantle has an upper end and a lip connected to the upper end. The lip extends annularly about the outer mantle. An L-shaped support member is positive-lockingly inserted into the slotted hole.