In another embodiment, the fastener has {HEAD ~ a telescoping structure} in which an internally threaded torque element is slidably received within a central passage of {TAIL ~ the head portion} 
In another embodiment , the fastener has { HEAD ~ a telescoping structure } in which an internally threaded torque element is slidably received within a central passage of { TAIL ~ the head portion }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL