Connecting device for connecting two preferably plate-like parts (T1, T2), in particular for releasably connecting two parts to be adhesively bonded, - having a supporting face, connected directly or indirectly to the housing of the connecting device, for supporting on one side against one of the parts to be connected, - having supporting faces (104, 204) on at least two hook-like abutments for supporting against the other of the parts to be connected, wherein the supporting faces (104, 204) of the hook-like abutments form the free end of associated needles (10, 20), - having a system for axially setting the supporting faces (104, 204) of the adjustable hook-like abutments and for the displacement thereof orthogonally to the axial setting direction, in order to act by way of the supporting faces (104, 204) of the hook-like abutments on the other of the parts to be connected, after the hook-like abutments (needle tips 100, 200) have reached through the overlapping openings in the parts to be connected, and - having a drive element for axially setting the needles (10, 20), characterized in that at least two of the needles (10, 20) that belong to a connecting device are connected on the base side to separate carriers (11, 21), of which at least one carrier (11, 12) is operatively connected to the drive element such that the drive element is suitable for adjusting the needles (10, 20) relative to one another in the axial direction, in that, in a starting position of the needles prior to the bracing of the parts to be connected, the needle tips (100, 200) are moved axially with respect to one another, and in that in a braced position, the needle tips (100, 200) are located opposite one another such that the supporting faces (104, 204) thereof are located at the same axial level, in that the needles (10, 20) have integrated elevations (101, 201) and depressions (102, 202) on their facing faces in the region of their tips (100, 200), wherein these elevations (101, 201) and depressions (102, 202) are nested in one another in a space-saving manner in the starting position of the needles (10, 20), and wherein the elevations (101, 201) are supported against one another in the bracing position of the needle tips (100, 200) such that the supporting faces (104, 204) are adjusted orthogonally to the axial setting direction of the needles (10, 20). - having a supporting face, connected directly or indirectly to the housing of the connecting device, for supporting on one side against one of the parts to be connected, - having supporting faces (104, 204) on at least two hook-like abutments for supporting against the other of the parts to be connected, wherein the supporting faces (104, 204) of the hook-like abutments form the free end of associated needles (10, 20), - having a system for axially setting the supporting faces (104, 204) of the adjustable hook-like abutments and for the displacement thereof orthogonally to the axial setting direction, in order to act by way of the supporting faces (104, 204) of the hook-like abutments on the other of the parts to be connected, after the hook-like abutments (needle tips 100, 200) have reached through the overlapping openings in the parts to be connected, and - having a drive element for axially setting the needles (10, 20),