Heavy Expansion Bolt Set

Expansion is created by tightening a threaded bolt that draws a tapered cone expanding a sleeve against the walls of the hole. Widely used in fence, burglarproof doors, and windows, home decoration, engineering, etc. No rust, no deformation, non-pollution.Main Features Hollow Expansion Secure BoltsHeavy-duty hollow drive wall anchor expansion when installing, providing strong bearing capacity and safety.  Various Size for Most WallsThere are a variety of bolts sizes for you to choose from for meeting your different needs. Suitable for a wide range of thicknesses of hollow walls.  Heavy-duty Hanging HelperThe Hollow Expansion Bolts are made of high-quality zinc plated carbon steel, rust resistance, and corrosion resistance, durable enough for you to hanging items like curtain rods, lamps, photo frames, coat racks, and much more. Wide Range of ApplicationPerfect for cavity anchor plasterboard fixing, widely used in drywall, hollow block, plaster, tile, perfect for hanging curta