Easy to Install: The knurled nut design makes it easy to insert the part. There is no need to drill the internal threads and no solder nuts. Premium Material: Made of galvanized carbon steel, high strength, oxidation and corrosion resistance. Easy to Store: With a plastic storage box, easy to carry and store. Wide Application: It can be installed on steel, plastic, fiberglass and other materials. Package Included: 300pcs Rivet Nuts Kit Size follow: 50pcs x 6-32 Rivet Nuts 30pcs x 8-32 Rivet Nuts 25pcs x 10-24 Rivet Nuts 25pcs x 10-32 Rivet Nuts 20pcs x 1/4-20 Rivet Nuts 50pcs x M3 Rivet Nuts 40pcs x M4 Rivet Nuts 30pcs x Rivet Nuts 20pcs x M6 Rivet Nuts 10pcs x M8 Rivet Nuts Features: Strong, sturdy and corrosion resistant. Not easy to rust, very durable. Rivet nuts can be installed in many kinds of materials, including steel, plastic and fiberglass, etc. Specification: Material: Zinc Plated Size: 6-32, 8-32, 10-24, 10-32, 1/4-20, M3, M4, M5, M6, M8 Quantity: 300 pieces Note: It does not include other things, the color is based on the first picture, and the other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. . Due to manual measurement. Please allow for deviation. Thank you! Good quality product