{HEAD ~ The inner periphery} of {TAIL ~ the washer bites} into the shank to prevent it from dislodging 
of
{ HEAD ~ The inner periphery } of { TAIL ~ the washer bites } into the shank to prevent it from dislodging
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH