An electrical connector assembly comprises a connector shell configured to interface with a mating connector shell, a coupling member configured to receive the connector shell and having an internal thread engaging the mating connector shell, and a retaining member configured to retain the connector shell in the coupling member. The connector shell has a plurality of ratchet teeth and defines a longitudinal axis. The plurality of ratchet teeth form a first ratchet ring and a second ratchet ring around the connector shell.