Brake screw for surgical lighting systems

A brake screw, comprising:

• a screw member configured for retention within a threaded aperture of a mounting hub, for rotational adjustment to enable displacement in an axial direction;
• a brake member in axial alignment with the screw member and disposed for movement in the axial direction for engaging a mounting tube held within the mounting hub upon rotational adjustment of the screw member;
• a rivet section integrally formed with the screw member and having a distal end retained within an axial recess formed within the brake member, allowing movement of the brake member in the axial direction around the rivet section of the screw member;
• a removable brake cover including a brake element portion that includes a braking surface and an opposing surface that engages an underside of the brake member;
• and
• a bias member disposed between the screw member and the brake member to create a biasing force that urges apart the screw member and the brake member along the axial direction, to thereby apply a braking force between the braking surface of the removable brake cover and an outer surface of the mounting tube, in order to retain the mounting tube in a fixed position.