A power, communications and data grommet mounted in an aperture in a work surface comprising, a housing adapted to fit into the aperture, the housing comprising a cap removably connected to a liner, the liner comprising an upper liner and a lower liner, the upper liner flaring outwardly to prevent the grommet from falling through the aperture, and a substantially cylindrical lower liner having a threaded outer surface, and a lock ring having inner threads to be threadably attached to the lower liner.