Patent ID: 7168138

Claim:
A fastener having an insertion axis, the fastener being configured to be inserted into an aperture in a structure along the insertion axis, the fastener comprising: a flange having a hole formed therein and a helical lip that is formed about the hole; a body coupled to the flange, the body having a pair of generally U-shaped portions, each of which being disposed on an opposite side of the insertion axis, a fastener aperture being formed into an end of each of the generally U-shaped portions opposite the flange, the fastener aperture being adapted to provide clearance for a threaded fastener that is inserted into the hole; and a wing member coupled to each of the generally U-shaped portions, each wing member having a warped planar shape, the warped planar shape being a twisted plane, the wing member including a first end that is coupled to an associated one of the generally U-shaped portions and a second free end opposite the first end, the second end terminating at a distal edge surface, the distal edge surface being sloped relative to the flange in a vertical direction that is generally parallel to the insertion axis so that a first lateral side of the distal edge surface is relatively closer to the flange in the vertical direction than a second opposite lateral side of the distal edge surface.