The object of the invention is to secure straight travelability for a fastener during the driving of the latter, simplify the connecting fastener production process, simplify the cleaning of the work site, and prevent work-attending damage to the flooring. In a connecting fastener, kraft paper (5) in a combination band (2, 3) for holding a number of nails (2) is pasted to opposite surfaces of the nails (2), the kraft paper (5) having a plastic layer (6) that is formed with a plurality of grooves (7A, 7B) with a pitch smaller than the arrangement pitch of the nails (2), facilitating the separation of the nails (2).