Dowel for insertion into an opening of a wall, in particular on a vehicle body

A dowel for insertion into an opening (12) of a wall (14) on a vehicle body, including

• a shank section (16) adapted to extend through the opening (12) in an inserted state,
• a radially extending flange (18) adjoined thereto, said shank section and said flange being made of a first material component, and
• a sealing section (20) made of a second material component,
• wherein said second material component is a plastic material which is unsealed with said opening (12) when in a non-expanded state and which expands at an elevated temperature and tightly closes the opening (12) in said expanded state, the opening (12) having an inner edge (34) and the wall (14) having a side (30) facing away from said flange when said shank section is in said inserted state, in said expanded state said second material component sealing only the inner edge (34) of the opening (12) and the side (30) of the wall (14) facing away from said flange (18), said second material component being spaced from a side (19) of the wall (14) facing toward said flange when in said expanded state,
• wherein a plurality of latching elements (26) configured as spring lugs are disposed on said shank section (16),
• wherein said sealing section (20) comprises at least one outer surface (32), said latching elements (26) at least partly cover said outer surface (32) of said sealing section (20).