Flare-in nuts are special nuts for connectors that have the function of providing a controlled preload during assembly. This article will introduce the principle, structure and application of rivet nuts.

The principle of rivet nut self clinching fasteners is to use special structural design, when tightening bolts or screws, through the spring device and balls inside the nut, under the action of a certain torque, the application of pre-tightening force is realized. The structure of the rivet nut mainly includes a shell, a thread, a spring device and a ball. The nut shell is usually made of high-strength alloy steel, which ensures its strength and durability during use. The threaded part is matched with the thread of the bolt or screw to realize the connection function. Spring units and balls are the key components for tension, they create pressure during tightening and thus provide preload.
Rivet nuts have a variety of benefits and applications. First, it provides a controlled preload during assembly, ensuring the connection remains strong and secure under working loads. Secondly, the design structure of the rivet nut makes it have good self-locking performance and can effectively resist vibration and loosening. In addition, the rising rivet nut is also reusable, and can be assembled and disassembled many times, which reduces maintenance costs. Rivet nuts are widely used in aviation, aerospace, automobiles, machinery and other fields, especially in occasions that