A clip fastener includes a base and a clip head that is distant from the base. The clip head includes a barb having a rounded outer surface including a ramp that increases in diameter towards the base. An elongate clip neck connects the base with the clip head. The clip neck has sufficient resilience under compressive forces exerted on the rounded outer surface of the barb to permit movement of the barb. The clip may be formed as an individual unit for use in fastening operations, or it may be molded into component structures, such as fan carriers for computer fans.