Example aspects of a main body blank for a storage box, a tray blank for a storage box, and a storage box blank are disclosed. The main body blank can comprise a planar sidewall assembly comprising a plurality of sidewalls, each of the sidewalls defining a top edge and a bottom edge opposite the top edge; and a first fastener panel formed monolithically with the sidewall assembly and hingedly connected to the bottom edge of a first one of the sidewalls by a first fastener bend line, the first fastener panel coplanar with the sidewall assembly.