Fastener for plate of noise insulation material for wall or ceiling has axial dowel body and sleeve-shaped holder arranged telescopically with sealing lip and expansion body to expand dowel body

摘要

The fastener has a sleeve-shaped holder (2) and an axial dowel body (3), which overlap each other and are telescopically arranged. An expansion body (5) fits in an opening (6) in the holder opposite the dowel body, and is driven axially to expand the dowel body radially. At least one sealing lip (9) is arranged in the overlap area (4) of the holder and the dowel body, to bridge an annular space (8) between the holder and the dowel body.