Sturdy Material: These mounting plates are made of sturdy, rust-resistant stainless steel. You can install your flat iron both indoors and outdoors. Corner Clamp Dimensions: 100mm Length - 50mm Width - 2mm Thickness, Mounting Aperture: 5mm Diameter, Number of Holes: 6, Load Capacity: 30kg. Easy Installation: Screws directly into wood, no pilot holes required. Easy installation of 6-hole straight shelf brackets (Note: Screws are not included). Wide Applications: These straight metal mounting plates are ideal for many woodworking applications, such as mounting bed frames, chairs, tables, and other furniture. They are also ideal for repairing damaged furniture and as shelf supports. Contents: 5 metal connector plates. These flat plates are ideal for repairing large kitchen cabinets and reinforcing certain shelves. For any questions, please contact customer service.