Fastener for vehicle

An improved structure of a fastener for a vehicle to be used for fixing various parts to a vehicle body is provided, which includes a main body(30) to be fixed and supported in a fixing base(1) of a vehicle body, a locking element(40) to be fitted into the main body via an insertion hole(2a) of an object(2) for fixing the object(2) to the fixing base, a washer(50) to be fitted into the locking element to be connected to a top surface of the object(2), and an elastic element(60) such as a coil spring for closely contacting the washer fitted into the locking element to the top surface of the object and simultaneously maintaining the holding state between the main body(30) and the locking element(40), wherein an object may be fixed to a fixing base of the vehicle body regardless of a thickness of the object and the vibration, which is generated in a coupling portion of the object when the vehicle is driving, may be absorbed for preventing the abrasion of the coupling portion of the fastener.