Each nut is welded to a corner bracket, and {HEAD ~ each nut} extends into {TAIL ~ the resilient material} 
Each nut is welded to a corner bracket , and { HEAD ~ each nut } extends into { TAIL ~ the resilient material }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL