These make me smile: like a demon is holding up your box (or maybe a vintage book?). I like the completely flat top on these as you can use on oddly-shaped (or round) boxes, too. And note that the "toes" stick out quite a distance from the top/base where you'll attach them.
Comes with 8 screws. 1/2" tall x 1-1/8" deep.Dragon Claw Box Feet - Set of 4 181021LW