Each flap is moved about the score line for insertion through the elongated opening such that when the flap is inserted beyond the free end of the flange, the flap is biased way from the panel to connect {HEAD ~ the panel} to {TAIL ~ the channel} 
to
Each flap is moved about the score line for insertion through the elongated opening such that when the flap is inserted beyond the free end of the flange , the flap is biased way from the panel to connect { HEAD ~ the panel } to { TAIL ~ the channel }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL