Leg 221 of the metal 2×4 would be attached by fasteners to {TAIL ~ extension} 77, and screw can be driven through end tab 82 into {HEAD ~ base} 232 
Leg 221 of the metal 2×4 would be attached by fasteners to { TAIL ~ extension } 77 , and screw can be driven through end tab 82 into { HEAD ~ base } 232
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH