Abstract: Device for tightened connection of structural parts positioned with distance between each other having a self-cutting screw penetrating an upper and a following lower structural part, and a screw thread engaging the structural parts. The upper structural part is prolonged by longitudinal rails received in recesses in the lower structural part, and an advance bolt is put in advance to the screw. The advance bolt stays in its advance position upon screwing back the screw thereby that a connection element activated by the displaced advance bolt causes a connection between the lower structural part and the longitudinal rails. Thereby both structural parts are kept at the existing distance.

Abstract: The invention relates to a fixing clip for joining two superimposed flat components each having one penetration in alignment with the other. The fixing clip is characterized by a mounting part with two arms for contact with the upper component and an expanding part attached to the mounting part for spring-loaded engagement of the lower component, wherein the mounting part with the expanding part forms a hole passage in alignment with the penetrations and the mounting part receives a cap screw, wherein said cap screw penetrates the two penetrations and the hole passage with a threaded shank and is adapted with its head between the two arms to engage the arms both in a pre-assembly position and also in a holding position. As the screw is screwed into the hole passage and as the expanding part expands, the screw transitions out of the pre-assembly position into the fixing position, in which the threaded shank holds the expanding part in its expanded position and presses the two components together.