It contains 2 kinds of anchors: 40 pieces of 0.47x1.18 inches (12x30 mm) and 40 pieces of 0.47x1.57 inches (12x40 mm). The screw size is M4 x 30 mm and M4 x 40 mm.These drywall self-drilling anchors are made of high quality carbon steel and plated with yellow zinc for maximum durability. With great corrosion & oxidation resistance.No hole or drilling required,easy to use and do less damage to the wall. this anchors are specially designed for drywall and can help you quickly install screws on drywall.easily remove for reuse and no big hole left in the wall.Due to the flat shape design of the anchors, there is no need to drill holes in the wall before installation. You can directly use a Phillips screwdriver to remove the screws and replace the decorations. Therefore, you can decorate the walls many times.Wide application, Anchor in fixing for medium weight applications on drywall, Plasterboard, wallboard, sheet rock . Heavy duty Self-Drilling Anchors for hangs TV, Bike, shelf Straps, Cabinet & Decoration Fixing Curtains, Calligraphy, Wall Cabinets.
