An adapter sleeve for a coaxial cable connector is provided to transmit torque to a nut member on the cable connector. The adapter sleeve includes a cylindrical body having a first end and a second end defining a bore along a longitudinal axis therethrough. The bore defines an interior surface; the interior surface has a torque transmission feature sized to slideably engage the nut member. The first end of the body has at least one radially inward defined retainer lip. The retainer lip is dimensioned and adapted to engage with a corresponding retaining structure on an external surface of the nut member.