A device for the connection of tubes, usable, in particular, for the conjunction of a rigid element of connection to a deformable extremity of a tube in destined systems to the transport and/or the distribution of a fluid in pressure, or to the gaseous, dispositive liquid state that in which an at least rigid member of connection (2) it introduces a male (21) - destined to being introduced in extremity (31) of the tube (3) - to surface smooth and supplied at least two braces of ring-like prominences (22, 22 ' ), adjacent ones to two throats (23, 23 ' ) centers for means of estate, to es. toriche packings (24), at least a collar (25) of guide for organs of serration and ulterior ring-like prominence (26) place to the destined extremity to being introduced in the tube (3).FIG. 1.