Further, the annular protrusion second end can have a series of external threads on {HEAD ~ its outer surface} for {TAIL ~ threaded engagement} with a series of internal threads of a nut 
Further , the annular protrusion second end can have a series of external threads on { HEAD ~ its outer surface } for { TAIL ~ threaded engagement } with a series of internal threads of a nut
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH