Quote Originally Posted by Jim Dwight View Post
I've had bad luck with the self drilling anchors, both plastic and metal. They often spin when you go to tighten a screw in them.
It's really critical to be sure to use the correct screw size, both in gage and length with these anchors to avoid that issue. Many of the screws that come with various things that get hung are too large in diameter and/or too long.