16 Pcs M4x22.5mm Steel Hollow Anchors Molly Bolt Silver

Size and Packaging - The hollow anchors include 16 expansion nuts and 16 matching screws, ensuring a sufficient quantity for various installation applications and providing a secure and durable fixing effect. The screw size is 9 x 4 x 22.5mm / 0.35 x 0.16 x 0.89 inch (Head Dia x Base Dia x L), while the nut size is 11.5 x 3.4 x 15.5mm / 0.45 x 0.13 x 0.61 inch (Head Dia x Base Dia x L), and the applicable thickness range is 0-5mm / 0-0.2 inch. Wide Application - Rivet nuts are suitable for most applications, especially for thin or hollow materials where traditional fasteners are difficult to handle, such as aluminum alloy, steel tubing, sheet iron, and acrylic sheets, for hanging curtain rods, hollow doors, metal frames, wall cabinets, wall panels, coat racks, license plates, and more. Container labels, etc.
Easy to Install - The petal nuts are designed for use with both hand and pneumatic tools and are simple to install. Use two wrenches/pliers: one to secure the rivet nut to prevent it from rotating after insertion into the hole; the other to tighten the nut to secure it in place. Screw the screw into the nut and tighten until it is firmly pressed. Be careful to avoid overtightening to prevent tearing.
Note - The hollow anchors are made of high-strength carbon steel, which is rust-resistant, corrosion-resistant, difficult to deform or break, and can be firmly fixed to the plate, making them suitable for long-term use in various environments. It is recommended to choose a suitable drill bit and avoid using a guide for optimal access to the flange. Petal Metal Nuts - The petal design of the nut allows the screw to better grip the wall during expansion, providing an increased tightening effect, reducing slippage, and effectively preventing loosening. The petal shape also distributes the tightening force evenly and protects the fastened parts from damage.