Preferably, {HEAD ~ the back plate portion} 16 is attached to {TAIL ~ the pole} 1 by making use of a nail 20 so that the head of the nail 20 is hidden behind a building board 
is attached to
Preferably , { HEAD ~ the back plate portion } 16 is attached to { TAIL ~ the pole } 1 by making use of a nail 20 so that the head of the nail 20 is hidden behind a building board
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH