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