An attachment device for a first part and a second part, said attachment device comprising: - a female element intended to be attached to the first part and comprising a housing extending in an axial direction, - a male element intended to be attached to the second part and comprising a rod comprising a body, a foot and a head, the foot and the head extending on either side of said body, the head having a transverse dimension in a transverse direction substantially perpendicular to the axial direction, - a retaining element extending across a part of the housing of the female element and defining therein a passage whose transverse dimension is less than the maximum transverse dimension of the head, the female element and the male element being attached to one another at least in an attachment configuration, wherein at least part of the body of the rod of the male element is inserted into said housing in the axial direction so that the foot and the head of the rod extend on either side of the retaining element, a clearance distance (d) separating the head from the retaining element, the male element further comprising an abutment surface extending transversely over the male element, the female element comprising a complementary abutment surface, said abutment surface cooperating with said complementary abutment surface in the attachment configuration, the clearance distance (d) between the head of the rod and the retaining element being held by said cooperation, the retaining element being movable relative to the female element between a retaining position, wherein the retaining element forms in the housing the passage whose transverse dimension is less than the maximum transverse dimension of the head, and a disassembly position, the complementary abutment surface being provided on the female element outside the housing, characterized in that, in the disassembly position, the retaining element forms in the housing a removal passage whose transverse dimension is greater than the maximum transverse dimension of the head or wherein the retaining element is separated from the housing and remains integral with the female element by a connecting element extending between the retaining element and the female element. - a female element intended to be attached to the first part and comprising a housing extending in an axial direction, - a male element intended to be attached to the second part and comprising a rod comprising a body, a foot and a head, the foot and the head extending on either side of said body, the head having a transverse dimension in a transverse direction substantially perpendicular to the axial direction, - a retaining element extending across a part of the housing of the female element and defining therein a passage whose transverse dimension is less than the maximum transverse dimension of the head, the female element and the male element being attached to one another at least in an attachment configuration, wherein at least part of the body of the rod of the male element is inserted into said housing in the axial direction so that the foot and the head of the rod extend on either side of the retaining element, a clearance distance (d) separating the head from the retaining element, the male element further comprising an abutment surface extending transversely over the male element, the female element comprising a complementary abutment surface, said abutment surface cooperating with said complementary abutment surface in the attachment configuration, the clearance distance (d) between the head of the rod and the retaining element being held by said cooperation, the retaining element being movable relative to the female element between a retaining position, wherein the retaining element forms in the housing the passage whose transverse dimension is less than the maximum transverse dimension of the head, and a disassembly position, the complementary abutment surface being provided on the female element outside the housing, characterized in that, in the disassembly position, the retaining element forms in the housing a removal passage whose transverse dimension is greater than the maximum transverse dimension of the head or wherein the retaining element is separated from the housing and remains integral with the female element by a connecting element extending between the retaining element and the female element.