FIG 4 is a perspective view of {TAIL ~ a washer} to be used in {HEAD ~ conformity} with the invention 
FIG 4 is a perspective view of { TAIL ~ a washer } to be used in { HEAD ~ conformity } with the invention
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH