Been long time since have posted but pretttty sure I’m screwed. Unable to budge an old delta 600 bonnet/collar/nut by tapping, wd40, not having heat, and my dremel cord 1 ft short and no extension cord, and not wanting to twist the supply tubes, I decide to use a hacksaw. Huge mistake. Lost focus, cut right through threads. Anyone think i can get away with a new nut? If not, looks like might be time swap out this old girl. Any other solutions? is that brass nut part of the collar? Or is it supposed come off first? Thanks for any advice!