Package includes: There are 90 pieces of rivet nuts in total. The number of rivet nuts is enough for you to use them in many places without worrying about not having enough pieces. Rivets Size: 18x15mm, 15x12mm, 13x10mm. Material: White Zinc. Rivet nuts have excellent corrosion resistance and toughness, are not easy to deform, and can be used for a long time. Application: Rivet nuts are useful for automobiles, furniture, decorations, handmade products. Knurled strip: The rivet nut with knurling and thread makes it easy to insert the workpiece and is firmly anchored in the object, making it difficult to slip. Specification: Quantity: 90pcs Material: White zinc Shape: Cylindrical Color: silver Rivets Dimensions: 18x15mm, 15x12mm, 13x10mm Product Features: 1. The knurled strips on the rivet nut make it easy to insert the nut into the workpiece and can be easily installed on a variety of materials, including steel and plastic. 2. The rivet nut is made of white zinc, which is not easy to rust and easy to install. It is a great installation tool to make your work easier. Package Contents: 30 * M5 Rivet Nuts 30 * M6 Rivet Nuts 30 * M8 Rivet Nuts