Connector for connecting two profiled-section elements of the type having lateral walls extending in a longitudinal direction, a bottom connecting the lateral walls, and an upper side formed by flanges extending inwardly from the respective lateral walls, said flanges defining between them a longitudinal slot, and said flanges having an inner side facing the bottom and an outer side facing away from the bottom, the connector comprising: - an elongate connector body designed to be inserted partially into each of the profiled-section elements to be connected from the respective longitudinal ends thereof, wherein the connector body is at least provided with two bores, - at least two screws, said screws having a shank having a tip on one end and a head on another end, wherein the shanks of the respective screws extend through the respective bores, wherein: - the connector body comprises a connector plate with upstanding edge portions on either lateral side thereof, said upstanding edge portions having a top edge remote from the connector plate, said top edges, in use, facing the inner side of the flanges of the profiled-section element, - in the connector plate said at least two bores are provided through which the screw shanks extend, wherein the screw head in an initial state is spaced apart from the connector plate and is located between the upstanding edge portions, and wherein the screw shank can be advanced through the bore whereby the spacing between the connector plate and the screw head is reduced, - the screw shanks have a length which is such that when the tips of the screw shanks are supported by the bottom of the profiled-section element, the top edges of the upstanding edge portions can be brought in clamping engagement with the inner side of the flanges of the profiled-section element by advancing the screws through the bores, and characterized in that the connector has a tongue attached to the connector body, preferably at each end of the connector plate, said tongue being an extension of the connector plate which is folded over at a longitudinal end thereof, such that the tongue, in an initial pre-mounting state, extends spaced apart from and essentially parallel to the connector plate on a side opposite the side where the screw heads are located, said tongue extending in the longitudinal direction of the connector plate, said tongue in use being in engagement with the bottom of the profiled-section element, and wherein the tip of the shank of the screw abuts the tongue such that when the shank of the screw is advanced through the bore, the tongue is tilted to an oblique position with respect to the connector plate. - an elongate connector body designed to be inserted partially into each of the profiled-section elements to be connected from the respective longitudinal ends thereof, wherein the connector body is at least provided with two bores, - at least two screws, said screws having a shank having a tip on one end and a head on another end, wherein the shanks of the respective screws extend through the respective bores, - the connector body comprises a connector plate with upstanding edge portions on either lateral side thereof, said upstanding edge portions having a top edge remote from the connector plate, said top edges, in use, facing the inner side of the flanges of the profiled-section element, - in the connector plate said at least two bores are provided through which the screw shanks extend, wherein the screw head in an initial state is spaced apart from the connector plate and is located between the upstanding edge portions, and wherein the screw shank can be advanced through the bore whereby the spacing between the connector plate and the screw head is reduced, - the screw shanks have a length which is such that when the tips of the screw shanks are supported by the bottom of the profiled-section element, the top edges of the upstanding edge portions can be brought in clamping engagement with the inner side of the flanges of the profiled-section element by advancing the screws through the bores, and