FIGS 5 and 6 illustrate a first step of mounting {HEAD ~ the brackets} 1 to {TAIL ~ a mounting surface} 101 
FIGS 5 and 6 illustrate a first step of mounting { HEAD ~ the brackets } 1 to { TAIL ~ a mounting surface } 101
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH