The arrangement is very secure because the clips 18 and {HEAD ~ screws} 24 are present at every corrugated zone across the full width of {TAIL ~ the end wall} 12 
The arrangement is very secure because the clips 18 and { HEAD ~ screws } 24 are present at every corrugated zone across the full width of { TAIL ~ the end wall } 12
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH