{TAIL ~ The retainer} is able to secure the terminal member to prevent removal when the retainer is in {HEAD ~ the fully secured position} 
{ TAIL ~ The retainer } is able to secure the terminal member to prevent removal when the retainer is in { HEAD ~ the fully secured position }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD