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