a modular conveyor belt and belt attachment members that are retained by hinge rods . the attachment members have a body with opposite outer and base surfaces . interaction elements , such as high - friction surfaces , plates , or holddown wings , extend from the outer surface . the base surface mounts flush against a conveying surface or an opposite surface of the belt . legs extend directly from the base surface into gaps between hinge elements extending longitudinally outward of conveyor belt modules forming the belt . feet at distal ends of the legs hook under hinge rods to retain the attachment member firmly in place . the lateral spacings between the legs are related to the geometry of the hinge elements to register the attachment element with respect to the belt .