An automatic gripping closure device comprising a first element with hooks comprising a first base band and at least two first hooks originating from the first band and placed in at least one row of first hooks (9), each first hook being delimited by two faces (11, 12) that are mutually opposed and transverse to the direction of the at least one row of first hooks and at least one coupling portion (13, 14) protruding laterally from the stem, preferably at the top of the latter, while extending in a direction transverse to the direction of the row, and a second element with hooks comprising a second base band and at least two second hooks originating from the second band and placed in at least one row.