Durable material: crimp nuts made of aluminum alloy, with good corrosion resistance, water resistance and rust resistance, and can be used for a long time. Different sizes: We have four sizes of M4, M5, M6, M8, so you have different choices in different situations and different needs. Precision design: The blind rivet nut has a precise thread design inside, so it is very compatible with the screw, the fixing effect is better, it is not easy to fall off and the assembly effectof the article is more stable. Easy to install: Round thread rivets have a knurled shape that increases friction with the contact surface compared to ordinary nuts, and they can be easily installed in many different materials. Widely Used: Rivet nuts can be used in a variety of materials such as steel, plastic, fiberglass and wood.They can also be widely used in automobiles, furniture, handicrafts and other industrial products.