When the pressure riveting nut was first developed, there was also a hexagonal pressure riveting nut. The difference between it and the above and the figure is its appearance. In the above picture, the pressure riveting nut is a cylindrical shape, and then the nut is a cylindrical shape. There are some embossed tooth designs and guiding grooves at one end. The design of one end of the hexagonal pressure riveting nut is the same as this one, the only difference is that its appearance is a hexagon. Although this kind of hexagonal pressure riveting nut is not too common, it needs to be understood. The picture below is a hex pressure riveting nut.
In the standard of this article, the specifications of the pressure riveting nut are also noted. There are only six commonly used types, M3/M4/M5/M6/M8/M10, but in fact, this description does not completely rivet a pressure riveting nut. The nut is clearly written. The common metric pressure riveting nut we use should include its material, specification, and standard in the description. First of all, let's talk about materials. There are only two kinds of materials for pressure riveting nuts, one is carbon steel galvanized, and the other is stainless steel. If it is carbon steel, it is represented by S. This S not only indicates the material, but also indicates the standard size of the pressure riveting nut, such as round, not the shape of the hexagonal pressure riveting nut. Then there is the specification. The specification is relatively easy. It is M4 or M5. It refers to the standard of internal thread. The thread size is described by the number. This is the same as ordinary nuts. So what is the standard? In fact, the standard refers to the installation standard, which is equivalent to the thickness of the sheet metal, which is also the special place of the pressure riveting nut. For example, the sheet metal thickness is 1 mm, the thread specification is M3, and the material is carbon steel galvanized. Then its complete description is: S-M3-1. If it is stainless steel, just change the letters in front, or take M3 as an example, the stainless steel material is represented by CLS. The complete description is: CLS-M3-1.
The principle that the pressure riveting nut can be locked after riveting is that one end of the nut has a small cylindrical end face, and the end face downward has an angle of about 30 degrees to 45 degrees. The rivet nut is put into the guide hole, and pressure is applied from top to bottom, so that the angled cylindrical end face and the tooth pattern are vertically pressed into the sheet metal, and bite together with the sheet metal to form a fixed thread.
In the long-term manufacturing and technical research of pressure riveting nuts, although the principles and methods of installation and fastening have been determined, the installation of pressure riveting nuts still needs to rely on special riveting installation equipment, which is to ensure that the pressure riveting nuts can be used in use. An indispensable condition for normal work. Although the equipment for installing pressure riveting nuts may not be fully covered by the product manufacturer, we will provide users with relevant data such as the technical parameters and installation methods of installing pressure riveting nuts.
Metric carbon steel pressure riveting nuts specifications M3 to M8 are available in large quantities. Users of American-made pressure riveting nuts and stainless steel pressure riveting nuts can call our company for inquiries according to the actual specifications required. When the pressure riveting nut is installed, a small hole slightly smaller than the knurled diameter should be opened in the sheet metal. When the pressure riveting nut is installed, the embossed part of the tooth pattern will be embedded in the sheet metal and squeezed outwards, and it will bite into the sheet metal. To lock it tightly. Try not to use percussion and other methods during installation to prevent it from falling off during use. Users can use some hydraulic equipment, professional riveting machines and other auxiliary tools for installation.
Wuxi Fanao Company has advanced production technology and equipment, and has imported many precision equipment. At present, it has formed a high-efficiency and high-quality pressure riveting nut production line. The company's all-round resources and development capabilities can meet the various needs of users in pressure riveting fasteners, and ensure that many users use pressure riveting nuts for a long time at a lower cost.