A. Product Features 1. These screw posts can facilitate binding and disassembly. 2. A 5 - millimeter - diameter hole can be drilled with a drill, and then the two parts can be installed from both sides. 3. Made of carbon steel and brass, they are sturdy and durable with a nickel - plated surface. 4. They can enhance corrosion resistance and decorative effects. 5. They are applicable for leather handicraft decoration. 6. They can be used to decorate documents, books, photo albums, bind books, make scrapbooks and other DIY handicrafts. B. Friendly Reminder 1. Different thicknesses of leather may require different sizes of screw posts: - Screws that are 4 millimeters long may be suitable for leather that is 4 - 6 millimeters thick. - Screws that are 6 millimeters long may be suitable for leather that is 6 - 8 millimeters thick. - Screws that are 8 millimeters long may be suitable for leather that is 8 - 10 millimeters thick. 2. It is advisable to understand the above information before placing an order. C. Product Parameters 1. **Material**: Carbon steel and brass 2. **Color**: Silver, gold 3. **Diverse specifications**: The diameter of these screw posts is 5 millimeters (3/16 inch), and there are 3 different lengths, namely 4 millimeters (0.16 inch), 6 millimeters (0.24 inch), and 8 millimeters (0.3 inch). 4. **Quantity**: 10 pairs per set D. Precautions 1. Unit conversion: 1 centimeter = 10 millimeters = 0.39 inch 2. Due to manual measurement, an error of 0 - 3 centimeters may be allowed. It is recommended to make sure you don't mind this before making an offer. 3. Due to differences between different monitors, the pictures may not reflect the actual color of the item. Thank you for your understanding. E. Package Contents 10 pairs of belt buckles.