Screwtop wine bottles for homebrew

Screwtop wine bottles are becoming more prevalent these days, especially for the budget/midrange wines. I have quite a few of them left over. I always wondered whether it'd be okay to use them in homebrew, but I haven't been able to find much information on the Interwebs. I'm currently experimenting the current batch with 4 wine bottles (rest are in PET bottles). Hope they turn out alright.