Brass Threaded Insert Size for Grips?

[SIGcurious]

I have a full-size Griptilian (551-S30V) with the black nylon grips. I stripped one of the grip screws, and in the process of trying to remove it, I mangled up one of the brass threaded inserts that are press-fit into the grips. I'm looking to find a replacement. Does anyone know the size I need to look for? Thanks.

 

[Delta-v]

Not sure about the size and I've never removed one of these inserts, but I'm wondering if you could use one from the other scale.