Abstract: The present invention is directed to an improved bracket for securing a traffic control device to a mast arm, pole or other support. The bracket comprises a bracket clamp plate and a mast arm anchor plate for engagement, respectively, to the traffic control device and the mast arm. The bracket includes conventional adjustable securing devices for securing the plates to the traffic control device and mast arm. Projecting from each anchor plate are tubular sections sized for telescopic engagement. A tab, either fixed or removable, is included on the inner tubular section for cooperation with an annular shoulder on the interior of the outer tubular section to axially secure the sections together. A fixed tab, if present, is accommodated through a groove or slot in the outer tubular section. A removable tab, e.g., a screw or roll pin, may be inserted and removed into a bore in the inner tubular section through the slot or through a separate aperture in the outer tubular section.