-db- beat me to the punch!

EVEN if you can NOT find low profile screws you can easily make them yourself simply by removing material with a file, stone, Dremel, etc and then polish them and refinish. I would definitely do this rather than taking a chance on ruing a perfectly good set of nice grips!

BEFORE lowering the screws profile, use the slot as a guide to make it a bit deeper since you will be removing part of that slot when you cut it down. You can use a hack saw blade or a jewelers saw to do so.

I've modified many screws and it's really not that difficult to do. A little Cold Blue and your back in business.

PS: If you ever need stainless screws to match a guns finish, they are available - but if not, just leave them in raw (or remove the bluing). For "Nickel" guns you can highly polish regular steel screws to a mirror finish and they look indistinguishable from the Nickel - I've done that more than a few times and they come out great!