The threads of the segments substantially fully engage {HEAD ~ the threads} of the bolt or {TAIL ~ hollow threaded member} 
of
The threads of the segments substantially fully engage { HEAD ~ the threads } of the bolt or { TAIL ~ hollow threaded member }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL