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Rivet nuts are also called pull rivet nuts, pull caps, pull caps instantly. It is used in the fastening field of various metal sheets, pipes, and other manufacturing industries. It is currently widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations, etc. carbon steel rivet nut is one of them.

The principle that the rivet nut can be locked after riveting is that one end of the nut has a small cylindrical end face, and the end face downwards has an angle of about 30 to 45 degrees and down is a zigzag embossing groove, which will press the riveting The nut is placed in the guide hole, and pressure is applied from top to bottom so that the angled cylindrical end face and the tooth pattern are pressed into the sheet metal vertically, and bite together with the sheet metal to form a fixed thread.

In the long-term manufacturing and technical research of rivet nuts, although the principles and methods of installation and fastening have been determined, the installation of rivet nuts still needs to rely on special installation equipment, which ensures that rivet nuts such as flat head rivet nut can be used in use. An indispensable condition for normal work. Although the equipment for installing rivet nuts may not be fully covered by the product manufacturer, relevant data such as the technical parameters and installation methods of the rivet nuts still need to be provided.

In automobiles, aerospace or many industries, you can always see all kinds of rivet nuts, and because there are too many types of rivet nuts, it is a problem for people to choose the rivet nut that suits them. At this time, custom rivet nut can bring us convenience and speed.

Customized riveting nuts are based on pressure riveting nuts, using different materials and different manufacturing methods, and making corresponding choices for manufacturing accuracy, size, quality, and structure. How to improve is the key to the quality, manufacturing accuracy and testing of pressure riveting nuts. After the use of rivet nuts, the error in processing should be minimized, which is beneficial to the on-site assembly of the factory. Most of the workpieces in processing are machined. Heavy workpieces are generally divided into two types: balcony and ceiling. Sometimes they are used as partitions and balcony ceilings.

Before producing custom rivet nut or knurled rivet nut , it is necessary to determine that there is a professional organization to establish a stable supply system in the factory, and there is a mechanism for developing parts. And improve the processing accuracy, constantly revise according to the development and conditions of the enterprise, the supply chain can be more fully explored for different construction project products from each component to the entire component. Professionals are trained and specially prepared to produce customized products. Rivet nuts are good in terms of quality and materials.

The common materials used for standard rivet nut nut post, screw and bolt processing are different materials according to the strength level of the nut post, nut, screw and bolt. At present, the standard components on the market mainly include carbon steel, stainless steel and copper. Next, let’s take a look at some knowledge of carbon steel rivet nut .

Carbon steel is an iron-carbon alloy with a carbon content Wc of less than 2.11%. Also called carbon steel. Generally, it also contains a small amount of silicon, manganese, sulfur, and phosphorus. Generally, the higher the carbon content of carbon steel, the greater the hardness and strength, but the lower the plasticity.

Carbon steel can be divided into three categories: carbon structural steel, carbon tool steel and free-cutting structural steel according to its purpose. Carbon structural steel is further divided into engineering construction steel and machine-made structural steel. According to the smelting method, it can be divided into open hearth steel and converter steel.

The above is some relevant knowledge of carbon steel rivet nuts, but only carbon steel rivet nuts can be divided into many types, so there will only be more types of rivet nut, flat head rivet nut , stainless steel rivet nut, blind rivet nut, etc. There are really many kinds of subdivisions. So we are far from enough to understand rivet nuts.

Rivet nuts are divided into blind rivet nuts and pressure rivet nuts. These two tools are not unfamiliar to industrial workers, but many people do not understand the specific differences between the two and their applicability at the time of purchase. which one. However, for convenience, it is easier to choose a custom rivet nut .

Blind rivet nuts are mainly used in the field of fasteners and have a wide range of applications. They are mainly used for the assembly and riveting of electromechanical and light industrial products, such as aviation, furniture, automobiles, instruments, machinery and decoration. The main reason why it is difficult to distinguish pressure riveting nuts is that the two uses are so similar that it is easy to confuse the two. However, the two are not the same. Welding nuts used for thin metal plates and thin tubes are easy to melt, and the disadvantages of tapping internal threads are easy to slip. The most likely problem is the riveting problem. At this time, the rivet nut comes in handy. The riveting is firm, efficient and easy to use.

However, compared with blind rivet nuts and pressure rivet nuts, the function and appearance of custom rivet nuts are relatively similar to them, but since custom rivet nuts can exist, they must have their own reasons for existence. For example, you don’t have to worry about the choice of blind rivet nuts. The rivet nut is also a pressure rivet nut. Usually, most people choose custom fasteners when they don’t know much about rivet nuts. This is more convenient, fast and labor-saving, especially for those who have difficulty choosing, this should be a good choice.

The most important thing about Christmas is the blessings, so I wish you all a Merry Christmas in advance, and I hope everyone will go well and be happy in future life and work. Christmas (Christmas) is also called Jesus Christmas, Nativity Day, and Catholicism is also called Jesus Christmas Feast. Translated as “Christ’s Mass”, it originated from the Saturn Festival, when the ancient Romans welcomed the New Year, and had nothing to do with Christianity. After Christianity prevailed in the Roman Empire, the Holy See followed the trend to incorporate this folk festival into the Christian system, while celebrating the birth of Jesus. But Christmas is not the birthday of Jesus, because the “Bible” does not record the specific day Jesus was born, and there is also no mention of such a festival. It is the result of Christianity’s absorption of ancient Roman mythology.

Most Catholic churches will first hold midnight mass on Christmas Eve on December 24, which is the early morning of December 25, while some Christian churches will hold good news and then celebrate Christmas on December 25; A large branch-the Orthodox Christmas celebration is on January 7th each year.

Christmas is also a public holiday in the Western world and many other regions, such as Hong Kong and Macau in Asia, Malaysia, and Singapore.

Finally, I recommend to you Zhejiang Kunhou Auto Parts Co., Ltd. They are Chinese product manufacturers and product suppliers, using advanced production equipment, first-class technology and almost automatic production process. With an annual output of 8,000 tons of riveting products and 10,000 tons of rail transit fasteners. Continuous innovation, research and development and unremitting efforts make the products based on high-end and high-end markets, mainly sold to dozens of countries such as Germany, Japan, Spain, Italy, Britain, South Korea, Canada and so on.

When we use threaded rivet nuts , we often encounter some misunderstandings. Many people don’t know what to do or what consequences these misunderstandings will lead to. Next, let us talk about the misunderstandings and misunderstandings of threaded rivet nuts. The impact of these misunderstandings.

(1) Threaded rivet nuts should be thicker rather than thinner

For important couplings on the machine, such as drive shafts, fly shafts, etc., bolts mostly use fine threads. When parts were missing for repair, someone replaced them with thick bolts. Because the inner diameter of the fine-threaded bolt is larger, the pitch and the outer angle are smaller, it has high strength, good self-locking performance, and can withstand impact, vibration, and exchange loads; after using the thick-threaded bolt, it is easy to lose or fall off and break, causing mechanical accidents.

(2) The washer of the rivet nut is too large

Sometimes, due to the lack of a suitable gasket, some people will switch to a gasket with a larger inner diameter. In this way, the contact area under the head of the bolt with the washer is small, thereby reducing the bearing pressure or locking force of the washer, and the bolt is easy to loosen under the action of vibration and impact load.

(3) The torque of the rivet nut does not match

Many people believe that threaded rivet nuts should be “tightened rather than loosened”. Therefore, they consciously increase the tightening torque of threaded rivet nuts, which causes the threaded rivet nuts to slip. On the other hand, for important threaded rivet nuts that need to be tightened with torque, some people try to save trouble with adjustable wrenches. As a result, they tend to loosen due to insufficient torque, leading to mechanical failure.

When you encounter misunderstandings or anything else while using nuts, remember not to panic. This can also be regarded as the first thing in everything. Don’t panic, don’t calmly solve all problems. I believe there will always be time to overcome.

According to the head type, rivet nuts can be divided into hexagonal and round heads, as well as through-hole blind holes, and the distinction between flat head and countersunk head. The most primitive ones are actually flat heads. Flat head rivet nuts are riveted to the plate. There was a small step on the part, and later on occasions that were not suitable for this step, a countersunk rivet nut appeared. The reserved space for the flat head is a round space, and the reserved hole for the flat head nut is chamfered. Yes, it is a tapered surface. When the nut is riveted to the sheet metal, it is flush with the sheet metal, leaving no small step，blind rivet nut appeared later

The difference between countersunk rivet nuts and flat head rivet nuts

(1) Pressure riveting nut Preschool rivet nut, self-fastening nut, is a kind of nut applied to thin plate or sheet metal, with a round shape, one end with embossed teeth and guide groove. The principle is to press the embossing teeth into the preset holes of the sheet metal. Generally speaking, the aperture of the preset holes is slightly smaller than the embossing teeth of the pressure riveting nut. The flower teeth of the pressure riveting nut are squeezed into the guide groove by pressure, thereby Produce a locking effect.

(2) The countersunk head willow nut is also called “the gospel of the thin plate connection process”. It changes the old method of the traditional process. When parts are installed on the thin plate, there is no need to tap the internal thread and no welding nut, which is firm and beautiful. , Convenient and fast, can be widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations, etc.

The above is the basic difference between countersunk head rivet nut and flat head rivet nut.

In the classification of fasteners, the names of many fasteners only differ by one word, but their functions are completely different. For example, blind rivet nuts and rivet nuts, the names of these two types of fasteners are only one word apart, and The applications in industry are also very extensive, but do you really know the difference between these two types of fasteners? However, because there are many people who can’t distinguish the difference, some people will choose custom fasteners to solve this trouble. Regardless of model, size, etc., there is no need to worry about it.

Blind rivet nut, also known as rivet nut, pull cap, pull cap instantly. At present, it is widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, decorations, etc. It was developed to solve the shortcomings of thin metal plate and thin tube welding nuts, such as easy melting and easy slippage of internal threads. It does not require internal threads to be tapped, no welding nuts are required, and the riveting is firm and efficient, and convenient to use.

Pull riveting means that during the riveting process, the riveting part undergoes plastic deformation under the action of external tension. The deformed position is usually in a specially designed position. The deformed part clamps the base material to achieve a reliable connection.

The expansion riveting nut adopts the expansion riveting process. Riveting means that part of the material of the woolen screw or nut undergoes plastic deformation under the action of external force during the riveting process, and forms a tight fit with the basic material, thereby realizing a reliable connection between two parts. The riveting process is relatively simple, and the strength of the connection is relatively low. It is usually used in situations where the height of the fastener is limited and the torque is not large.

The rivet nut is a kind of fastener used in sheet metal, sheet metal, chassis and cabinet. The rivet nut has two shapes: one is hexagonal, denoted by NZ NZS; the other is cylindrical, denoted by Z ZS .

In fact, the rivet nut is a kind of fastener. Choosing a custom rivet nut means the same thing as a custom fastener.

When we are choosing rivet nuts, we may not be able to make a decision because we don’t know what rivet nut to choose. Let’s talk about how to choose this rivet nut to choose the rivet nut that suits our wishes.

The first thing we need to consider is of course the size of the thread. If the size does not match, it will be bought for nothing.

Maybe you just need to use a rivet nut to replace the existing thread in order to use it like a similar thread size. If the installation is new, it is worth studying the surrounding area to ensure that the proper size rivet nut can be installed without compromising the blind-side protrusion and anchoring ability. Of course, heavy-duty applications certainly require larger rivet nuts to accommodate larger thread sizes.

The second is the material. The corrosion resistance of the rivet nut and the direct environment that the rivet nut will endure need to be considered when purchasing.

The third is body shape, rivet nuts are round, hexagonal or hexagonal. For most people who can’t handle hexagonal holes, there are two styles of round rivet nuts, these are round (plain) and spline. The body of the spline is inherently a good purchase of the surrounding materials, of course, the prerequisite is that you need the firmness that you like to install.

The fourth is the head type. The diameter and thickness of the head type (or flange) are different. Your requirements for the proximity of accessories and components will determine the degree of “detachment”, which will become a prerequisite for your choice of rivet nut head . For example, if you are installing a panel, you may need a flush/thin board head.

The fifth is the material thickness (clamping range): most applications only require the standard clamp range for most rivet nuts. In special circumstances, if necessary, we can provide a long-term grip.

Having said that, we still find it very troublesome when we choose the rivet nut, and we also worry that the rivet nut we have selected is still not right. In that case, why should we choose the rivet nut? What is impossible in modern society? We choose custom rivet nut , and all the troubles and entanglements can be solved quickly.

In short, both flat head rivet nuts and Countersunk Head Rivet Nuts are a kind of nut in metrology. The standard number of flat head rivet nuts: The current standard implemented by the domestic industry: GB/T 17880.1-1999.

According to the type of head, the rivet nuts sold on the market can basically be divided into flat head rivet nuts and countersunk rivet nuts. But the most common is the flat head rivet nut.

The flat head rivet nut changes the old method of the traditional process used before. When installing parts on a thin plate, there is no need to strike internal threads and weld nuts. From the appearance point of view, the top of the flat head rivet nut is flush, forming a flat interface after riveting, which is firmer, more beautiful, convenient and fast.

From the point of view of use, the fastening effect of flat head rivet nuts is better, and this type of rivet nut is usually used. However, in some use processes, the surface needs to be flat after riveting, so the counterbore can be punched in this process, and then riveted with countersunk rivet nuts after the riveting is completed to make the riveted surface flat.

Although there are many domestic brands of rivet nuts for flat Flat Head Rivet Nuts in China, the quality of the product itself is comparable to foreign products. However, product stability still needs to be improved, and imported products have low aluminum content. The reputation is very good, so more companies tend to import brands when buying.