Abstract: Quick joint which is comprised by a laminar body folded 90°, having “L” section, the height of which is consistent with the height of the side wing corresponding to the profile of the hanger section to be joined; along the upper edge of said body a small arched flange is formed, while the angular 90° fold is effected at the opposite edge to the same side towards which said flange extends; said quick joint laminar body being provided, along with the openings existing at the base, with corresponding projecting embedded shoulders acting as snap fit anchoring resilient means for operational engagement, fitting into said openings. The height of the side face of the quick joint laminar body is slightly larger than that corresponding to the wing of the involved hanger, while the width of the laminar body is, at most, half of the width of the hangers being joined.