A wire winding spool, comprising a tubular body for supporting a coil of wire provided, at its ends, with wall elements for containing the coil, at least one of the wall elements being provided with at least one pin for engaging means for turning the spool, each wall element being associated with the corresponding end of the tubular body so as to rest against an abutment provided on the outer surface of the wall of the body, clamped against it by a fold of the end portion of the wall.