Protective case for use with a belt

A protective case that may be used with or without a belt clip. A recess is formed in the inside surface of rear panel of the case, with a corresponding slight, smooth bubble formed on the outside surface of the rear panel. The bubble of the recess has a through-bore. A nut is embedded into the recess and held in place by a backing affixed to the inside surface of the rear panel. A threaded post with a head may be threaded into the the nut in the recess. The case is then easily captured in the belt clip by sliding the post into a groove on the clip. If the user desires to use the protective case without the belt clip, the post is easily removed from the rear panel, leaving only the slightly raised, smooth bubble.