Abstract: A fluid-tight wall lead-through device for cables or the like comprising a bushing forming a packing-box and gland assembly for tightly enclosing a said cable in sealing relationship, said bushing extending through a hole of said wall and being secured within said hole by means of a clamping member; wherein the improvement consists in that said bushing of said device is provided with end teeth forming levers, one end of which is bearing onto the wall and the other end tightly encloses a deformable sealing packing which is adapted to be deformed by said teeth upon a pivotal motion thereof, through a lever action against said wall, when said clamping member is tightened.