Abstract: The present invention relates to a weld-on fastener for an electrical contact with a weld nut (1) which, on its topside has an electric contact face (9) and, on its bottom side, has an annular axial projection (6) which surrounds a cavity (4) of a pre-determinable depth (T), and with a screw (3) screwed into the weld nut (1), which screw (3) also has an electric contact face (9), a spacer ring (2) being clamped between the contact faces (9). The spacer ring (2) preferably has a thickness (D) which is approximately equal to the depth (T) of the cavity (4). When the spacer ring (2) is clamped in, the screw (3) ends approximately flush with the end of the internal thread (12) of the weld nut (1). This combination is distinctive in that it has only a low overall height, no metal scabs reach the thread (12) during welding-on, the contact faces (9) are protected during assembly and the welded connection can absorb high torques even when welding onto thin work pieces (7).

Abstract: The present invention relates to a weld-on fastener for an electrical contact with a weld nut (1) which, on its topside has an electric contact face (9) and, on its bottom side, has an annular axial projection (6) which surrounds a cavity (4) of a pre-determinable depth (T), and with a screw (3) screwed into the weld nut (1), which screw (3) also has an electric contact face (9), a spacer ring (2) being clamped between the contact faces (9). The spacer ring (2) preferably has a thickness (D) which is approximately equal to the depth (T) of the cavity (4). When the spacer ring (2) is clamped in, the screw (3) ends approximately flush with the end of the internal thread (12) of the weld nut (1). This combination is distinctive in that it has only a low overall height, no metal scabs reach the thread (12) during welding-on, the contact faces (9) are protected during assembly and the welded connection can absorb high torques even when welding onto thin work pieces (7).

Abstract: An attachment device for the fastening or connecting of electrical conductors to a unit in a higher position. The attachment device has a sleeve-shaped contact piece (1) and a cap (9) connected thereto. The contact piece (1) is connected by positive material locking to the unit in a higher position with the connecting region (2). The contact piece (1) at least near the attachment face (6) has an external contour that corresponds to a polygon in cross-section. The cap (9) at least partially closes the orifice (4) in the vicinity of the connecting region (2).