A ceiling suspension assembly for hanging an object in a cable, cord or string from a ceiling or similar upper surface, the assembly comprising a ceiling fitting, cover or casing and a suspension device, - the suspension device adapted to be attached to the ceiling and comprising a projecting elongated portion having an axial channel for receiving the cable, cord or string, the projecting elongated portion having an exterior threading, and - the ceiling fitting, cover or casing comprising a portion having a through-hole with an interior threading for cooperation with said exterior threading to allow, by rotating the ceiling fitting, cover or casing to take a desired position along the projecting elongated portion such as for pressing an upper edge of the ceiling fitting, cover or casing against the surface of the ceiling or for making an upper edge of the ceiling fitting, cover or casing to be in engagement with the surface of the ceiling, not leaving any substantial space between said upper edge and the surface of the ceiling, and - the ceiling fitting, cover or casing is composed of two separate parts, a nut part and a top cover, where - - the nut part including the portion having the through-hole that has an interior threading, characterized in that - the projecting elongated portion has a longitudinal opening into the axial channel extending at least over that part of the elongated projecting portion that carries the exterior threading for allowing a portion of the cable, cord or string to be laterally introduced into the axial channel, - - the top cover having an opening large enough for a connector plug or similar object to be passed therethrough, and for receiving and enclosing the nut part, making it an integral part of the ceiling fitting, cover or casing, means being provided for rotationally fixing the top cover and the nut part to each other, and - - the nut part being divided along a vertical axial plane to be composed of two separate parts and (35"), each of the two separate parts including a portion of the wall of the through-hole and its interior threading and the two separate parts having means and, for releasably attaching them to each other, so that the longitudinal opening in the projecting elongated portion, said opening in the top cover and the division of the nut part into two separate parts allowing an easy enclosure and mounting of an electrical cable, cord or string having a connector plug or similar object at one end, and thereby allowing an object to be hung from a ceiling without having to dismount the connector plug or similar from the electrical cable, cord or string, and at the same time allowing screwing the mounted ceiling fitting, cover or casing as one integrated unit until it sits tightly to the ceiling or similar upper surface without the use of tools. - the suspension device adapted to be attached to the ceiling and comprising a projecting elongated portion having an axial channel for receiving the cable, cord or string, the projecting elongated portion having an exterior threading, and - the ceiling fitting, cover or casing comprising a portion having a through-hole with an interior threading for cooperation with said exterior threading to allow, by rotating the ceiling fitting, cover or casing to take a desired position along the projecting elongated portion such as for pressing an upper edge of the ceiling fitting, cover or casing against the surface of the ceiling or for making an upper edge of the ceiling fitting, cover or casing to be in engagement with the surface of the ceiling, not leaving any substantial space between said upper edge and the surface of the ceiling, and - the ceiling fitting, cover or casing is composed of two separate parts, a nut part and a top cover, where - - the nut part including the portion having the through-hole that has an interior threading, characterized in that - - the nut part including the portion having the through-hole that has an interior threading, characterized in that - the projecting elongated portion has a longitudinal opening into the axial channel extending at least over that part of the elongated projecting portion that carries the exterior threading for allowing a portion of the cable, cord or string to be laterally introduced into the axial channel, - - the top cover having an opening large enough for a connector plug or similar object to be passed therethrough, and for receiving and enclosing the nut part, making it an integral part of the ceiling fitting, cover or casing, means being provided for rotationally fixing the top cover and the nut part to each other, and - - the nut part being divided along a vertical axial plane to be composed of two separate parts and (35"), each of the two separate parts including a portion of the wall of the through-hole and its interior threading and the two separate parts having means and, for releasably attaching them to each other, - - the top cover having an opening large enough for a connector plug or similar object to be passed therethrough, and for receiving and enclosing the nut part, making it an integral part of the ceiling fitting, cover or casing, means being provided for rotationally fixing the top cover and the nut part to each other, and - - the nut part being divided along a vertical axial plane to be composed of two separate parts and (35"), each of the two separate parts including a portion of the wall of the through-hole and its interior threading and the two separate parts having means and, for releasably attaching them to each other,