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