US Patent 7066701 Fastener for variously sized studs

The disclosed fastener includes a body having a cavity therein and a wall at least partially surrounding said cavity. The fastener additionally includes a finger having a first member extending from the wall. The first member is attached to a second member having at least one engagement mechanism on its distal end adapted to cooperate with a second engagement mechanism on the stud to retain the fastener on the stud. The first member extends outwardly from the wall and the second member extends inwardly into the cavity. A plurality of fingers each include a lower surface angled upwardly toward the center of the cavity such that a stud contacting the lower surface will be moved toward the center of the cavity.