FIG 4 illustrates {HEAD ~ a fastener} 76 having a head portion 78 with a forwardly directed threaded shank 80 and {TAIL ~ a rearwardly directed shank} 82 
FIG 4 illustrates { HEAD ~ a fastener } 76 having a head portion 78 with a forwardly directed threaded shank 80 and { TAIL ~ a rearwardly directed shank } 82
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH