A fastener, such as for coupling a trim cover to a seat, including an elongated body portion; a first end extending from the elongated body portion to define a connecting structure having a substantially J-shape, a middle portion between the elongated body portion and the first end, and a receiving space there between for receiving a structure; a second end extending distally from the elongated body portion for attachment to the trim cover; and wherein the connecting structure includes an arcuate hook shaped to define a barb pointing outward and a planar surface pointing inward for retaining the fastener on the structure.