For a normal leader, in which one starts from 16 or 32 threads, to end up generally with 8 or 12, according to the density or a sinking speed expected for same, only one multiple thread by means of combination by twist or braid of nylon and copper threads, or two or more multiple threads of the same characteristics, will be located in equiangularly distanced areas, to attain an adequate share of the metallic material over the tapered braid that forms the fishing line leade