I'm kind of looking at the opposite.
I'm trying to get rid of the inserts from some DW lugs so I can retire some badly damaged Camco lugs - the Camco inserts are the same length as the DW (around 22mm) but the square-ended Camcos won't fit into the DW lug (the DW inserts have a hexagonal base and that very irritating tighter thread - which is why I want to get rid of them).
Now I don't have much experience with other brands but the Camco inserts look to be identical with the longer ones you can currently get online.
If anyone's got any tips on replacing the DW inserts with normal thread inserts, please let me know as well.