UPDATE: I e-mailed the sales department at UltraFlow (the new name of the former Draught Technologies) this afternoon. They're shipping out a replacement bonnet on Monday. I would absolutely recommend their equipment based on the level of customer service alone. That pretty much everything they...
That's what I was wondering, too; thus the query ;) I might just buy it, try it, and if it doesn't fit, return it.
Heli-coil is also a decent idea although I doubt there's enough material to make one work in this case.
I've got a regulator that I picked up used from a local on Craigslist. The pressure adjustment set-screw hole is stripped. Fortunately, the regulator otherwise works OK but I'd like to replace the bonnet. The regulator looks identical to this item...