Kam B175 Fly Hook The Kam B175 Fly Hook is the best extra strong high carbon fly hook for nymphs & conventional wet files. heavy wire gets the fly deeper quicker & the sproat-bend adds shape to the fly & strength to the point. Kam B175 Fly Hook > Barbed hook > Available in seven sizes > Size 2 > Size 4 > Size 8 > Size 10 > Size 12 > Size 14 > Size 16 Silver Size 8