Connect 12-1/2 - 14-1/2 gauge smooth & 15-1/2 gauge barbed fence wire to 12-1/2 - 16 gauge smooth hook-up wire. 10 Piece Dare Fence taps Connect 12-1/2 - 14-1/2 gauge smooth & 15-1/2 gauge barbed fence wire to 12-1/2 - 16 gauge smooth hook-up wire.