System and method for stress filiform elements

System and method for stress fiber elements of the type employing a profile (1) or post, having a plurality of holes (11a, 11b) double aligned, and wherein in said profile (1) a shaft is inserted (2 ) of substantially prismatic shape characterized in that first holes have a circular (11a) being located in the central face of the profile (1); while second holes have conjugated form (11b) located on its side faces and facing each other in pairs, with a first substantially circular region (110) and a second prismatic region (111), so that once stayed the stem (2) for the circular part (110) can rotate freely by the conjugate hole (11b), while stuck on the prism portion (111) of said conjugates holes (11b).