The WALL-DOG ANCHOR is an all steel, one-piece anchor which features high-profile threads for easy fastening into wallboard and other masonry base materials. The deep cutting, corkscrew-like threads provide for smooth entry and a powerful hold. When removed, the WALL-DOG leaves a much smaller hole than toggles or other systems. The WALL-DOG is available in chrome and white in both pan and oval heads. When fastening into wallboard or wood, no pre-drilling is required. A 3/16 masonry bit is required when screwing into concrete.