A housing for a device mountable on a mounting surface has a housing element provided with two mounting flanges each having a passage adapted to extend substantially perpendicularly to the mounting surface and formed to receive a mounting bolt, two bushings extending through the mounting flanges and surrounding the passages, the bushings being composed of metal and injection molded with a material of the housing element, each of the passages being formed as an elongated hole with a width adapted to correspond to a diameter of the bolts, the bushings corresponding to a contour of the passages and surrounding the passages with a radial distance therefrom, the bushings being provided with peripheral formations which are filled with the material of the housing element, and the bushings at an inner peripheral side being free from the material of the housing over a part of an axial length of the bushings and a lower side of the mounting flanges.