If the nut of a product needs to be installed on the outside, and the space inside is small, the indenter of the riveting machine cannot be entered for pressure riveting and the method of sprouting cannot meet the strength requirements, then pressure riveting and expansion riveting are not allowed Row. Must use pull riveting. It is suitable for the fastening field of various thickness plates and pipes (0.5MM-6MM). The use of pneumatic or manual riveting guns can be riveted at one time, which is convenient and firm; instead of traditional welding nuts, it can make up for the shortcomings of thin metal plates, thin pipes that are easy to weld, and welding nuts are not smooth.
The specificationsof rivet nuts in the national standard are M3, M4, M5, M6, M8, M10, and M12. In fact, M6 and M8 are recommended, because small threads can be directly tapped on the base material for connection. If the thread is large, the weight of the bolt will increase greatly. The increase in the connection strength of the nut is limited, that is, the matching is unreasonable.
It can be seen from the above that rivet nuts can be widely used on aluminum alloy substrates of different thicknesses or steel plates with thicknesses of 1-2.5mm. In particular, the connection of steel rivet nuts to aluminum alloy components eliminates the cumbersomeness of embedding steel plates inside, and its manufacturability is significantly improved.