Abstract: The invention is a twist-on electrical connector incorporating a shallow recess or fitment in its endcap opposite the open end of the socket, to enable application or installation onto electrical wires with a screwgun, screwdriver or similar handheld tool equipped with a corresponding male tip. The connector may incorporate a fitment snap off feature or fitment geometry failure feature to limit the torque that can be applied through the fitment and promote consistent quality of installation. The sidewalls of the connector may be smooth to inhibit installation and removal without tools. The fitment geometry may be compatible with more than one tip design.