Abstract: An anchor is disclosed for securing a cleat to the flexible web of a driven member such as the drive track of a vehicle as, for example, a snowmobile or the like. The anchor includes a generally rectangular backing plate having upstanding flanges along its two edges at right angles to the direction of movement of the drive track and a domed central portion forming a concave pocket in the face seated against the web. The joint or transition area where the flanges join the central portion of the plate is smoothly rounded or rolled. A fastener holds the cleat and plate against opposite faces of the web and compresses the web between them sufficiently to deform the web to fill the pocket and press against the shank of the fastener.