Knape & Vogt Shelf Anchor 42" One-Piece Shelf Mounting System Black A one-piece shelf mounting system that makes shelves seem to float on the wall. The Shelf Anchor accepts standard 5/8" shelves and is easy to install. With the appropriate fastening hardware, Shelf Anchor can be installed about anywhere. Supplied with 8 x 1-5/8" flathead wood screws 30 lb rating per screw if screwed into a stud 16" on center