The petal nut lantern-shaped rivet nut expansion screws are easy to install and provide a strong, reliable hold. Simply insert the screw into the desired location and to expand the nut, creating a secure anchor point. These screws are suitable for use in drywall, plasterboard, and other hollow wall materials, offering a versatile solution for various fastening needs. Features - Color: Silver -Material:Carbon steel - Size: 2.60X1.40X1.40cm/1.02X0.55X0.55in -Screw size: M5 -Reliable material: rivet nut expansion screws constructed with metal cladding to resist wear, ensuring durability -Wide application: suitable for securing door locks and other decorations on different door types -Strong anchoring: the hollow design and sheet metal anchor offer reliable support for heavyduty use -Effortless installation: designed for heavyduty use, the hollow dowels are easy to install, making the process quick and efficient -Simple to use: rivet nut screws are easy installation process, ideal for both diy and professional use Package list: 20 x expansion screws