The present disclosure generally relates a stop apparatus for use with a system comprising: a first component having a first surface; and a second component having a second surface. The second component is movable relative to the first component. The first surface and the second surface are disposed at different orientations when the first surface is located in proximity to the second surface. The stop apparatus is operable to be disposed between the two surfaces and operable to prevent them directly contacting each other. The apparatus may comprise an elongated body and an adjustable setting mount assembly inter-connected to the body. The mount assembly is operable to selectively adjust the angle at which the body is mounted relative to the first mounting surface over a range of angles.