We can see all kinds of fasteners for a long time, many of which we know or don’t know. We also know that there are many types of fasteners, and knurled rivet nut is also a kind of fasteners, but there are many misunderstandings when we use rivet nuts.
There are impurities such as rust, scale, iron filings, sand particles in the threads of bolts, nuts, or screw holes, or there are impurities such as burrs, mud, and sand on the joint surface of the coupling parts, which have not been removed before assembly. When tightening the bolts, due to impurities The blocking effect is that the surface is tightened very tightly, and the torque value meets the requirements, but in fact, the coupling is not compressed; also, there is another situation, due to the supporting effect of impurities such as sludge and scale in the screw hole, Although the bolt torque complies with the regulations, the workpiece is not tightened. Under such false solidity, vibration, load shock, and temperature changes often cause the bolts to loosen quickly.
The above is one of the misunderstandings of the rivet nut. Of course, there are some misunderstandings in the use of the custom rivet nut .