Bicycle roofing bolt SC-FC-118 with a round head and a square nut, threaded ¼” x 26 BSW. Lengths run ½” - 3” and the finish is zinc plating. The domed head carries a single slot for a flat screwdriver, and the long shank is threaded along its length, with the square nut run onto the end in bright silver. Catalogue code: SC-FC-118