ITW Brands 25310 50PK#50 Plas Dry Anchor For medium-duty wall applications such as installing shelving, mirrors, picture frames, and more Use in 1/2 in. Or 5/8 in. Drywall No need to pre-drill - screw directly into drywall Audible click lets you know when the anchor is firmly set Installs flush against the wall to prevent items from wobbling