A bracket assembly includes a first body and a second body. The first body includes one or more first retainers and the second body includes one or more second retainers. The retainers are shaped and arranged for mating engagement by relative movement of one or both of the first and second body. Interaction between the retainers causes the first and second bodies to become interlocked and forced towards one another. The first retainers can include first and second lug pairs and the second retainers can include first and second wedge portions.