I was *thinking* of EZ Anchors too, when I saw the original post. But I could not think of the "brand name". I love 'em. Use them for all kinds of things. Home Despot has them in the fastener aisle. The heavy duty one is a much-improved "molly bolt" design, but I use the big, nylon screw-in ones for lighter duty stuff and they haven't failed me yet.

bibere usque ad hilaritatem