If the nut of a certain product needs to be installed on the outside, and the space inside is small, the indenter of the squeezing machine cannot be allowed to enter the squeezing riveting and the methods such as sprouting cannot meet the strength requirements, then pressure riveting and expansion riveting are not feasible. Must use pull riveting. It is suitable for the fastening of various thickness plates and pipes (0.5MM-6MM). The use of pneumatic or manual riveting guns can be used for one-time riveting, which is convenient and firm; riveting nuts replace traditional welding nuts to make up for the shortcomings of thin metal plates, thin tubes welded easily, and welded nuts are not smooth.

The nut is made into a hexagonal shape for ease of use. On the machine, the part where the nut is installed is sometimes not enough, and the space for the wrench to screw the nut is quite narrow. For the hexagonal nut, you only need to turn the wrench 60 degrees at a time to gradually tighten the nut, while the square nut needs to be turned 90 degrees each time. That is to say, in order to tighten the nut, the hexagonal shape is smaller, but the octagonal nut is easy to slip due to the small contact surface between the wrench and it, and is usually rarely used, so the hexagonal nut is convenient to use. Look at the wrench again. The handle and the mouth of the ordinary wrench can become an included angle of 30 degrees. This way, when the area of ​​the nut is very narrow and the wrench cannot move freely, as for the hexagonal nut, you only need to pull a nut from the wrench. Turn the wrench over and pull the nut again, so that by repeatedly pulling back and forth several times, the nut can be tightened.

The nut is made into a hexagonal shape, and the rivet nut manufacturer uses materials in order to maximize the advantage of the terrain. From the point of view of strength, a large nut is stronger than a small nut. In the past, the nut was generally milled out of round material. The same round rod used to make a hexagonal nut is better than a square nut. Hexagon nuts made from round bars of the same thickness are much larger than square nuts. In summary, hexagon nuts are more convenient to use and can increase the utilization rate of materials. Therefore, they are common in the market.