Abstract: There is disclosed a mounting clip for joining siding panels. The clip has a first face and a second face. The clip is formed from a continuous metal strip. The continuous metal strip is bent generally into a FIG. 4 configuration and has an upright leg, a diagonal leg, and a angled leg. Each leg has a first end and a second end and a first face and a second face which correspond to the first face and the second face of the strip. The second end of the upright leg is connected to the first end of the diagonal leg by a first bight and the second end of the diagonal leg is connected to the first end of the angled leg by a second bight. The clip is especially well suited for joining a top out panel to a trim strip. In a preferred embodiment barbs and a point are provided to improve the connection between the topout panel and the clip.