Abstract: The present disclosure relates to the technical field of vehicle components, and in particular to a fastener for securing vehicle accessories, characterized in that the fastener includes: a fastener body, a trim panel securing portion, and an elastic member securing portion, wherein the fastener body includes a vehicle securing portion which is disposed on one end of the fastener body and can be used for securing to a vehicle body, the trim panel securing portion is disposed on one end of fastener body opposite to the vehicle securing portion and can be used for securing to vehicle accessories, and the elastic member securing portion is disposed between the vehicle securing portion and the trim panel securing portion and connects the vehicle securing portion with the trim panel securing portion.

Abstract: A fastening nut and a fastening assembly that includes the fastening nut. The fastening nut includes a collar and a receiving column, the receiving column includes an engageable receiving portion and a deformable receiving portion. The deformable receiving portion includes an upper barrel and a lower barrel connected to each other. The upper barrel has a right cone shape, the lower barrel has an inverted cone shape, and an outwardly-protruding bent portion is formed at a joint between the upper barrel and the lower barrel. The deformable receiving portion includes at least two holes provided at intervals in a circumferential direction of the receiving column.