Color: Silver; Material: Grade 4.8 Carbon Steel; Screw Thread Size: M4x20; Thickness: 1.5 mm / 0.06 inch; Center Hole Inner Diameter: 10 mm / 0.4 inch; Overall Size: 100x18x15 mm / 3.94x0.71x0.63 inch (L*W*H); Package Contents: 4 x Ceiling Light Plates. Advantages: Made of carbon steel with a zinc coating on the surface. The zinc coating provides good rust resistance and is durable. Screws and nuts are included in the package, saving you time and effort. Our ceiling plate bracket is designed to safely support up to 22 pounds of weight. With its robust construction and user-friendly design, this light fixture mounting bracket offers easy installation and ensures a secure and stable hold for your lights. Application: Our light fixture mounting bracket kit is designed to fit a wide range of light fixtures. This kit guarantees a perfect fit with your ceiling light panel cover. Whether you have pendant lights, chandeliers, wall sconces, living room lamps, outdoor wall lights, mirror lights, vanity table lamps, or kitchen wall lights, our light mounting bracket is suitable for all these applications. Note: You may need to check the length of this ceiling light bracket to see if it can be installed in your round ceiling light base. Also, these ceiling light plates are designed for light fixtures, not ceiling fans.