US Patent 10894516 U-base fastener with folded barb and multiple spring arms

A resilient U-base fastener includes a U-shaped body defining a central body cavity between a first side and a second side. The first side is connected to the second side at an insertion end. The U-base fastener also includes a first spring arm connected to the first side of the body that bends outwardly and away from the central body cavity at a first bend and a second spring arm connected to the first side of the body adjacent the first spring arm. The second spring arm bends outwardly and away from the central body cavity at a second bend. The first spring arm and the second spring arm are laterally spaced apart from one another and are separated by a gap in the first side of the body. The gap extends toward the insertion end past the first bend and past the second bend.