Subframe repair(large pic warning)

Great work, @Nick Mailloux . Quite impressive. Stop drilling the cracks is an excellent idea that a lot of people don't think about.
I do have one question. In picture #5, I see what looks like the sleeve from #4 set into place. Are the pieces I see in pictures 6 & 7 the same parts as in 4 & 5 only with the nut installed and welded in?
Congrats. Great repair.