So I bought a new GraphTech nut for my V-300 and I'm just wondering what kind of glue or adhesive I should use, ie: wood glue, Loctite 495, Gorilla Glue, etc...

either no glue, or just a small drop of superglue. the string tension will hold it on just fine, but if you need to only use a very small amount of glue incase you need to get it off again in future