"HILLMAN" HOLLOW WALL ANCHOR *Size: 1/4S *Drill size: 1/2" *Grip range: 1/8" to 5/8" *Body length: 2-1/16" *Screw length: 2-1/4" *When anchor is fully expanded, spider-like legs draw tightly against backside of the wall *Two prongs on the head of the shell prevent the anchor from rotating during expansion *Ideal for use in drywall, paneling, plywood, block and more *Card/2