Abstract: An adjustment device includes an internally threaded tubular body having means for securing the body to a first member. A hollow externally threaded tubular body is mounted in threaded engagement with the internally threaded body for adjusting the spaced relationship of the first member with a second member. The externally threaded body has spherical seats disposed at opposite ends thereof. Mounted in the spherical seats are the complimentary spherical seats of a pair of washers, one washer being mounted at each end of the externally threaded body. An elongated threaded screw is mounted within the externally threaded body and extends through the washers. A head at one end of the elongated screw engages one of the washers while the thread at the other end of the screw engages the second member for securing the washers and externally threaded body and thus the first member to the second member.