An electrical insider fitting for connecting flexible metal conduit to an electrical box without disrupting the walls surrounding the box. The fitting includes a connector body with a leading end, a trailing end, and a nose portion. A resilient split snap ring on the fitting enables snap connection of the fitting to the interior wall of an electrical box. Discontinuous threads on the nose portion are adapted to grab and hold a flexible metal conduit to the box. Conductors from the attached flexible metal conduit feed through the interior bores of the fitting to the interior of the electrical box enabling an installer to complete electrical connections in order to supply voltage to any components within the box.