| CPC B60R 13/0206 (2013.01) [B60R 13/06 (2013.01); B60J 10/30 (2016.02); F16J 15/061 (2013.01); Y10S 277/921 (2013.01)] | 20 Claims |

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1. A fastener comprising:
a shank disposed along an axis;
a stem protruding up from the shank and disposed along the axis, the stem comprising one or more grooves radially disposed around the axis;
an anchor coupled to the stem, the anchor comprising:
one or more anchor arms, wherein each anchor arm comprises a pivot and is coupled to an arm lever, wherein the arm lever is located at a distal end of the fastener, wherein each anchor arm is configured to rotate around the pivot between an uncoupled position and a coupled position upon application of a longitudinal force to the arm lever at the distal end, wherein the longitudinal force is configured to move the arm lever longitudinally inwards relative to the axis and rotate an extendable portion of the anchor arm radially outwards relative to the axis.
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