Abstract: A hinged knock-down returnable, self-locking bin includes a base panel, first and second side panels, first and second end panels, and first and second panel hinge means, the first panel hinge means being provided for hingedly connecting each of the side panels to a side of the base panel, and the second hinged means being provided for hingedly connecting each of the end panels to an end of the base panel. Locking meansare provided for connecting the tops of the side panels to the tops of the end panels. The bin is characterized by its simplicity of structure, the ease with which it may be erected for use in shipment, singly or in stacked interlocking relation, and the ease with which it may be collapsed so as to occupy a minimum space for storage and return shipment for further use when emptied of its contents.