The one will hold it especially the way they are treated now. Tighten the good one properly and glue/silicone/jb weld the bad one onto the stud. Be clean about it and no one will know and then when the dash is done you can replace it. In the meantime keep an eye out for one with the sheen/fade to match your current dash and swap them out if you find something you think is undetectable.

Careful, your character's showing!