Patent ID: 6974276

Claim:
A mounting rail and a connecting part for attachment on the mounting rail, the connecting part comprising: a fastening part having an at least approximately rectangular cross-section and comprising legs, wherein the fastening part in a mounted state on the mounting rail surrounds the mounting rail on all sides of the mounting rail in that the fastening part has a cross-section formed by the legs matching a cross-section of the mounting rail; the fastening part having clamping devices for effecting a clamping fixation of the connecting part on the mounting rail, wherein a cross-sectional plane of the fastening part has two diagonally opposed corners and wherein the clamping devices are arranged on the two diagonally opposed corners, respectively; wherein the legs have at least one bore and at least one fastening screw inserted into the at least one bore, respectively, wherein the at least one fastening screw has means for positive-lockingly engaging an external longitudinally extending rail slot of the mounting rail, allowing securing of the fastening part at any location of the mounting rail.