The cap and {TAIL ~ nut inset} are welded together at {HEAD ~ the contact} between the circumferential edge of the nut insert and the free edge of the cap 
The cap and { TAIL ~ nut inset } are welded together at { HEAD ~ the contact } between the circumferential edge of the nut insert and the free edge of the cap
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH