Guiding member for a disk brake pad in a cap which is composed of two U-like arms connected by two bars, each arm having at the two ends thereof an axial housing which has a substantially rectangular cross-section and which is bounded by a base, an internal radial surface and an external radial surface and a stud thereabove, - the guiding member being formed by a spring steel band which is folded in order to be fixed to the stud and which is positioned in the housing of the arm and to receive in an axially sliding manner the corresponding lug of the pad, the lug being provided with a radial spring in order to be guided and pressed by the guiding member and the housing, which guiding member is characterized by - a body which has a cross-section in the form of a U on its side and which is substantially rectangular in order to be positioned in the housing and which is continued by * a front external abutment surface which moves into abutment against the front surface of the stud and which carries two tongues in order to form lateral stops which extend at one side and the other of the stud and a hairpin-like shock-absorbing spring which moves toward the front in order to resiliently press against the side of the pad above the lug, and by * a front internal abutment surface which moves into abutment against the front internal surface of the arm and which receives the face of the pad under the lug, * the body having an external radial surface which moves into abutment against the upper surface of the housing, followed by a base which moves into abutment against the base of the housing and an internal radial surface which is provided with a locking tongue in order to press against and become engaged with the lower surface of the housing. - the guiding member being formed by a spring steel band which is folded in order to be fixed to the stud and which is positioned in the housing of the arm and to receive in an axially sliding manner the corresponding lug of the pad, the lug being provided with a radial spring in order to be guided and pressed by the guiding member and the housing, - a body which has a cross-section in the form of a U on its side and which is substantially rectangular in order to be positioned in the housing and which is continued by * a front external abutment surface which moves into abutment against the front surface of the stud and which carries two tongues in order to form lateral stops which extend at one side and the other of the stud and a hairpin-like shock-absorbing spring which moves toward the front in order to resiliently press against the side of the pad above the lug, and by * a front internal abutment surface which moves into abutment against the front internal surface of the arm and which receives the face of the pad under the lug, * the body having an external radial surface which moves into abutment against the upper surface of the housing, followed by a base which moves into abutment against the base of the housing and an internal radial surface which is provided with a locking tongue in order to press against and become engaged with the lower surface of the housing. * a front external abutment surface which moves into abutment against the front surface of the stud and which carries two tongues in order to form lateral stops which extend at one side and the other of the stud and a hairpin-like shock-absorbing spring which moves toward the front in order to resiliently press against the side of the pad above the lug, and by * a front internal abutment surface which moves into abutment against the front internal surface of the arm and which receives the face of the pad under the lug, * the body having an external radial surface which moves into abutment against the upper surface of the housing, followed by a base which moves into abutment against the base of the housing and an internal radial surface which is provided with a locking tongue in order to press against and become engaged with the lower surface of the housing.