Fastener screw capable of preventing pad cap from slipping

The utility model discloses a fastener screw capable of preventing a cushion cap from slipping, which comprises a screw body, a screw cap body used for fixing an instrument by matching with the screw body is arranged on the screw body, and an anti-slip component used for preventing the screw cap body and the screw body from slipping and separating is arranged on the screw cap body. According to the fastener screw capable of preventing the gasket cap from slipping, the anti-slip assembly is arranged on the nut body, so that the phenomenon that the nut body and the screw body slip and are separated is avoided through the anti-slip assembly, and the phenomenon that the nut body and the screw body fall and are separated is avoided through the anti-slip assembly; a clamping column on the gasket body is matched with a placing hole in the annular groove, so that when a resistance part at the bottom of the gasket body is in contact with the surface of an instrument, the friction force between the resistance part and