Therefore {TAIL ~ a large amount} of fasteners consistently supplied to {HEAD ~ the fastening machines} in proper orientation is required 
Therefore { TAIL ~ a large amount } of fasteners consistently supplied to { HEAD ~ the fastening machines } in proper orientation is required
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH