A transition device for providing a smooth corner of a pair of angular oriented interconnected windshields on a boat, the boat having a forward facing or front windshield and a side facing windshield, both the windshields being mounted in a formed aluminum molding. The transition device comprises a first element attached to the molding of the forward facing windshield at an upper end of the joint and terminating at the joint in a ball and a second element attached to the molding of the side facing windshield at the upper end of the joint and terminating in a socket. The ball and the socket are shaped and sized to fit together to form a smooth transition at the upper end of the joint so that the corner joint appears to have a ball and socket joint.