The disruption of the closeout {HEAD ~ joint} by {TAIL ~ the imbedded nuts} gives the final assembled structure a very significantly enhanced ballistics survivability 
by
The disruption of the closeout { HEAD ~ joint } by { TAIL ~ the imbedded nuts } gives the final assembled structure a very significantly enhanced ballistics survivability
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH