Anti-loosening anti-theft nut for automobile

The utility model discloses an anti-loosening antitheft nut for an automobile, which comprises a nut and a threaded hole, an outer ring is arranged on the outer side of the nut, an inner ring is arranged in the outer ring, the threaded hole is arranged in the inner ring, the upper end of the threaded hole is connected with a reverse threaded hole, and a calibration hole is arranged in the outer ring. The anti-loosening anti-theft nut for the automobile is provided with the rotating groove; the outer ring and the inner ring are connected through a rotating groove; due to the design, the inner ring cannot be driven to rotate while the outer ring rotates; the outer ring and the inner ring can rotate at the same time only through a special tool; by means of the design, lawbreakers can be effectively prevented from using tools of general models to steal. According to the utility model, the turntable is arranged, and the limiting ribs are arranged on the outer ring of the turntable, so thatthe connecting structure