Screw

The utility model discloses a screw which comprises a nut, a stud and a fastening structure, and the nut is provided with a mounting surface; the stud is arranged on the mounting surface of the nut in a protruding manner; the fastening structure is arranged on the installation face of the nut and comprises a plurality of fastening parts, and the fastening parts are arranged on the peripheral side of the stud in a surrounding mode and used for being connected with a to-be-installed component in an abutting mode. According to the screw provided by the utility model, the stud is screwed in the screw hole of the to-be-mounted component to fix the to-be-mounted component, the fastening structure is arranged on the mounting surface of the screw cap, and a plurality of fastening parts are propped against the to-be-mounted component, so that the fastening performance between the mounting surface of the screw and the to-be-mounted component is better, and after the screw is mounted in place, the to-be-mounted componen