Abstract: The invention relates to a device to be connected to a screw. Said device comprises a plurality of connecting elements (5, 6, 7) which have respective openings (14) and which can be engaged with a thread of the screw. Said connecting elements (5, 6, 7), in a preassembly configuration, are loose pieces. Along the edge of the opening (14) of the connecting elements (5, 6, 7), a pitch section (15) of a threaded structure is configured. A connecting system (8) allows to maintain, in a final assembly configuration, the connecting elements (5, 6, 7) in a predetermined spatial relationship to each other, thereby increasing the variability of use of the device.

Abstract: The present cover is used for permanent sealing of an oval-shaped processing hole (7) in aluminum sheet metal (8) by means of an adhesive joint. The cover consists of a circular cover plate (1) of aluminum with a concentric cover edge (2) and a ring-shaped strip (3) of hot-melt adhesive applied within the cover edge (2). The interior region of the cover plate (1) is connected to a spring plate (5) aligned plane-parallel with the cover plate at a spacing of the thickness of the aluminum sheet metal (8). The outer edge (6) of the spring plate (5) has a contour that corresponds to the shape of the oval processing hole (7) and includes quarter-circular spring tongues (11) which are brought to a tight fit by spring force against the back side of the aluminum sheet metal (8) by a quarter turn of the cover plate to produce the necessary pressure on the adhesive strip (3).

Abstract: The present cover is used for permanent sealing of an oval-shaped processing hole (7) in aluminum sheet metal (8) by means of an adhesive joint. The cover consists of a circular cover plate (1) of aluminum with a concentric cover edge (2) and a ring-shaped strip (3) of hot-melt adhesive applied within the cover edge (2). The interior region of the cover plate (1) is connected to a spring plate (5) aligned plane-parallel with the cover plate at a spacing of the thickness of the aluminum sheet metal (8). The outer edge (6) of the spring plate (5) has a contour that corresponds to the shape of the oval processing hole (7) and is somewhat smaller than the diameter of the hole (7).