A top end stop is provided to adjoin a fastener element row, and a projecting portion is formed on an inner side face of a main body such that the projecting portion projects sideway, so as to form a concave portion in which a flange of a slider invades. A projecting piece thinner than the projecting portion is located in the concave portion such that the projecting piece extends from a contact face of the projecting portion to the inner side face of the main body in a triangular shape while its front end is inclined. Consequently, the flange presses the top end stop against a tape face by sliding of the slider, the top end stop itself is reinforced, the longitudinal pulling strength is improved, and a step between the main body and the projecting portion is smoothed, whereby a top end stop favorably tactile to the skin is produced.