Abstract: A blank which is scored and cut so that it may be folded into a corner protector. A blank is scored to provide a series of side, bottom and top panels. There are aligned apertures in the side panels which allow a blank to be bent to form a pair of angularly aligned elements.

Abstract: A manually formed manufacturer's joint for a container is formed on opposite end edges of the container. A first hinged flap is on one end and a hinged panel is on the opposite end. The panel has an aperture formed by a second hinged flap. The aperture opens toward the panel hinge. The aperture has a maximum width slightly larger than the maximum width of the first flap and a minimum width equal to the width of the first flap hinge. The first flap is inserted through the aperture and the shoulders of the first flap lock behind the panel. The first flap is held in locked position by the second flap being rotated into the plane of the panel.