Patent ID: 8439613

Claim:
A fastener apparatus comprising; an elongated body having first and second end portions and a central, longitudinal bore that is at least partially threaded, the first end portion of the body having a socket and a plurality of circumferentially spaced apart slots that communicate with the socket; a shaft that extends through the bore and having respective first and second end portions communicating with the body end portions, one end portion having a head, the shaft being at least partially externally threaded opposite the head and the head and shaft being rotatable relative to the body; a plurality of locking members that are attached to the shaft at a position next to the first end portion of the body, the locking members being attached to the first end portion of the shaft; the locking members being movable between extended and retracted positions responsive to a rotation of the shaft, the locking members extending radially beyond the outer surface of the body in the extended position and being contained within the body at the socket in the retracted position; a nut that is connectable to the body at the partially threaded portion; a collar that is movable between a locked position wherein the collar prevents rotation of the head and an unlocked position wherein the collar is spaced away from the head a distance that enables rotation of the head, wherein in the unlocked position: 1) the head is able to rotate with the shaft and 2) the head does not travel toward the body; a biasing device that urges the collar toward the locked position.