I used smaller anchors with screws. Not only do they not screw all the way down, they also don't bite as well as the larger ones. They worked great. I only had a few turns after putting a screw in and then trying to unscrew it from the anchor causing the anchor to come out with the screw. I have smaller anchors for fasteners that require smaller screws. I will look for another manufacturer. I've used white before, rarely had any problems, this style should be better.