Feature 1These rivet nuts are suitable for various material thicknesses, including steel, fiberglass, and plastic. They are firmly riveted, efficient, and convenient to use. 2These half hexagonal shank nuts have large flanges that can improve the strength of punching and drilling. 3Application: Very suitable for automobiles, furniture, decoration, and other electrical and industrial products. Features: These rivet nuts are suitable for various material thicknesses, including steel, fiberglass, and plastic. They are firmly riveted, efficient, and convenient to use. These half hexagonal shank nuts have large flanges that can improve the strength of punching and drilling. Application: Very suitable for automobiles, furniture, decoration, and other electrical and industrial products. Specifications: Material: galvanized carbon steel Size: M3 M4 M5 M6 M8 M10 Head type: Flat head body Type: Half Hexagonal Packaging size: 19.5 * 13 * 3.5cm Packaging List: M3 * 150 pieces M4 * 150 pieces M5 * 100 pieces M6 * 60 pieces M8 * 30 pieces M10 * 10 pieces