Durable material: The rivet nut is made of aluminum alloy, which has good corrosion resistance, good sealing and rust resistance, and can be used for a long time. Various sizes: We have 25 pieces of each of four sizes: M4, M5, M6 and M8, so you have different choices for different situations and needs. Precision design: There is a precise thread design inside the blind rivet nut, so it cooperates very well with the screws, has a better fixing effect, is not easy to fall off, and the assembly effect of the item is more stable. Easy to install: The round thread rivets have a knurled shape, which increases the friction with the contact surface compared with ordinary nuts, and can be easily installed in many different materials. Wide range of applications: The rivet nuts blinds can be used in a variety of materials such as steel, plastic, fiberglass and wood. It can also be widely used in industrial products such as automobiles, furniture and handicrafts. Note: The data are all measured