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Summary: Learn how to repair drywall screws in this free expert video clip.
"Hi this is Jon on behalf of Expert Village in this video clip I will be showing you how to replace the nail with a screw. Now that we have removed that nail I know that at no point in the future could that nail pop back out because it is not there however I still need to secure my drywall to the studs behind it so it doesn't separate from that or separate from the ceiling. For this I'm going to use drywall screws. I'm going to be using this single drywall screw in place where I pull that nail out off this would help secure that drywall and make sure that it doesn't pop back out. Now when I put this drywall screw in I'm going to make sure and not go to far because I don't want to go right through the drywall, in addition I don't want to pull it to far back that it is going to separate from the ceiling. But I want to end far enough that I will be able to cover the head of that screw. "
eHow Article: Replacing Drywall Screws