Abstract: A fastener configured to catch the edges of a plurality of wallboards with the use of one anchoring element is disclosed. The fastener comprises a convex plate of circular shape having an anchoring hole, which is configured to allow the insertion of an anchoring element, located at the center of the convex plate. The method for using such a fastener comprises placing the fastener at a location where the surface of the convex plate covers a plurality of edges of a plurality of wallboards; inserting an anchoring element (e.g., a screw or nail) through the anchoring hole so that the anchoring element anchors onto a support element; upon completion of insertion of an anchoring element, the surface of the convex plate will be essentially flat and flush with the surface of the plurality of hoards.

Abstract: A fastener configured to catch the edges of a plurality of wallboards with the use of one anchoring element is disclosed. The fastener comprises a convex plate of circular shape having an anchoring hole, which is configured to allow the insertion of an anchoring element, located at the center of the convex plate. The method for using such a fastener comprises placing the fastener at a location where the surface of the convex plate covers a plurality of edges of a plurality of wallboards; inserting an anchoring element (e.g., a screw or nail) through the anchoring hole so that the anchoring element anchors onto a support element; upon completion of the insertion of an anchoring element, the surface of the convex plate will be essentially flat and flush with the surface of the plurality of boards.