Clamps 22 are mounted in {TAIL ~ slots} 14 by {HEAD ~ screws} 23 having heads 24 
Clamps 22 are mounted in { TAIL ~ slots } 14 by { HEAD ~ screws } 23 having heads 24
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH