As an example of {HEAD ~ the use} of {TAIL ~ this metal} 2×4, it may be used to replace the wood stud 84 illustrated in FIG 10 
As an example of { HEAD ~ the use } of { TAIL ~ this metal } 2×4 , it may be used to replace the wood stud 84 illustrated in FIG 10
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH