An assembly including a first, second and third component and a first and second fixing member, the first, second and third component having respective first, second and third holes, the first hole being a threaded hole, in which the first fixing member cooperates with the second hole and a first threaded portion of the first fixing member engaging the first hole to secure the first component to the second component, the first and second fixing member cooperating with the third hole with the first fixing member engaging the second fixing member to secure the third component to the first component, in which the first component is situated between the second and third component.