Abstract: The friction-mountable plastic hanger has an extrusion profile that defines a stiff depending hook for hanging an object and a cantilevered mounting structure extending from the hook. The cantilevered structure may consist of a single mounting arm with resiliently deformable transversely extending fins angularly projecting from the opposite faces of the arm in a direction backward toward the hook, or a stiff U-shaped mounting structure having a pair of parallel cantilevered mounting arms with interior facing surfaces equipped with resiliently deformable transversely extending fins that angularly project from the interior surfaces of the arms in a direction backward toward the hook. All parts of both have a uniform width dimension that extends perpendicular to the extrusion profile. The fins on the mounting arms are resiliently deformed by bending into a frictionally engaging relationship against structural surfaces when the hangers are frictionally mounted.