A vehicle assembly is provided. The vehicle assembly includes a roof panel, a bodyside panel and a bolt. The roof panel and bodyside panel collectively form a roof ditch. The bolt includes a stud that has first and second distal portions. The first and second distal portions include first and second threaded portions, respectively. The first distal portion extends outwardly from one of the roof and bodyside panels and the second distal portion extending outwardly from the other of the roof and bodyside panels and into the roof ditch.