Shenzhen Shi Shi Tong Metal Products Co., Ltd

  Why is there R Angle under the head of phillips truss head self tapping screws? When we look at the  phillips truss head self tapping screws  head below, sometimes we can see the obvious R Angle, so why there is R Angle under the head of the screw? The R Angle is set under the head of  phillips truss head self tapping screws  to protect the head of the screw from being broken when it is twisted. There is an R Angle under the head. The head diameter is generally large, and the rod diameter will be set when it is large. Or the groove is a little deep, in order to prevent the screw in time will break, will set the R Angle under the head, or change the screw head thickness, rod size, etc.   However, some customers feel that adding an R Angle under the head makes it inconvenient for them to use it with the flat washer. Because their flat washer is purchased in accordance with the standard size, and once the R Angle is added under the head of the screw, th...

  oval head stainless steel screws why not recommended tolerance? Screw manufacturers in the production of  oval head stainless steel screws  are in accordance with the customer’s confirmed drawings for production. So why do screw manufacturers sometimes say that when making screws, screw size is not recommended to do the tolerance? oval head stainless steel screws  are not recommended to do the tolerance, mainly because the screw just finished rubbing teeth, need to go through the cleaning passivation process to hand over to the customer’s hand, so as to avoid the screw dirty. Once the screw needs to be cleaned or passivated, the size of the screw will become smaller in the process of processing, resulting in the size of the screw does not conform to the drawing. And when the screw tolerance, screw manufacturers need to consider when doing cleaning will lead to the size of the screw smaller, smaller size. If the customer can accept the reduced size, then it can proc...

  Phillips stainless steel self tapping screws about the mold fee need to pay attention to what? When we customize  phillips stainless steel self tapping screws , if it is produced by cold heading, it generally involves the problem of mold. That is, whether the screw manufacturer has a mold, if there is no mold, you need to pay the cost of the mold. So when we order screws, what do we need to pay attention to when it comes to molds? One is the mold and whether the mold cost can be returned, what are the conditions of return. Because some manufacturers will not return the mold and the mold cost once they order the mold, some manufacturers can return the mold cost but not the mold, and some manufacturers can return the mold and the mold cost. Each screw manufacturer sets different standards for these problems.   If the mould needs to be ordered, which party shall bear the cost in case of wear or damage in the process of use? Three are whether the mold fee includes tax. ...

  Cross recessed head screw how to prevent loose The loosening of  cross recessed head screw  should be a big problem that has troubled many customers. How can we make the screw not loose after it is pressed? We can work on the material of the product and use the characteristics of the special material to make the screw and the product more tightly connected together. Engineering resin materials, for example, have high resilience. Attach it to the thread of  cross recessed head screw , make it and nut or other material products for mechanical friction, produce resistance when the workpiece vibration, prevent the screw from loose off. Of course, if it is not possible to cooperate with the product, we can also change the screw. There is a method called dispensing that can solve this problem for us. It has the advantages of being non-toxic and high adhesion. Apply this glue to the thread and wait for drying, the adhesion is super strong. Can make  cross recessed he...

  M2.6 pan head phillips screws, do this way make purchase orders There are a variety of screw suppliers on the market. It takes a lot of time and energy for customers to find suppliers with guaranteed quality and satisfactory after-sales service. Here is an example of a custom  M2.6 pan head phillips screws , in which we can see how to let customers trust the supplier and its service, then retain customers to purchase. On November 9th, a customer, Mr. Ren, wanted to order 200 samples of  M2.6 pan head phillips screws  made of Japanese standard material in Shi Shi Tong. After considering the quotation, Mr. Ren said that his boss was worried that a single M2.6 screw would become loose when it vibrated. In this regard, the sales department found and recommended the corresponding 1022 A material according to the JIS material provided by Mr. Ren in advance, and then suggested that it could be prevented from loosening by dispensing. Because Mr. Ren was worried that the gl...

  Ultra low head cross screws stainless steel under what circumstances need to open mold? For customers customizing screws, it is best not to open the mold. After all, the cost of opening a mold is not cheap. So  ultra low head  cross screws stainless steel  in what case need to open the mold? First, when the  ultra low head cross screws stainless steel  are thread forming screws, customers should open the mold. Unless the screw factory just happens to have thread rolling die, otherwise, you should spend money to open mold.   Two, the screws are set into shoulder screws. If the number is relatively small, it can generally be completed by the process of a single die and then turning, because it will be more cost-effective. However, if there are many screws, it is more economical to use cold heading. Three, there are anti-slip serrations under screws’ heads. The number of anti-slip serrations is different, it is produced according to the needs of cu...

  Can the mold cost of cross head stainless steel screws take refund? When ordering  cross head stainless steel screws , the customers who need to open the mold will be very concerned about whether the mold cost can be refunded, whether the mold can be taken away by the customer, and whether the mold cost should be paid during the proofing period. In the following, Shi Shi Tong screw manufacturer will give our standard to you: Can the cost of  cross head stainless steel screws ‘ mold be refunded? The standard of the Shi Shi Tong screw manufacturer is as follows: when the mold cost is less than 5000 yuan, the mold cost will be returned only after 200,000 pieces of this type of screw are made within 2 years. Can customers take away the mold at that time? The Shi Shi Tong screw manufacturer only returns the mold cost, but not the mold. Do we also need to pay the mold fee during the proofing period? Yes. Because the screw production process of Shi Shi Tong screw manufacturer ...

  Pan head phillips stainless steel screws, why do they need to pass GO NO GO FIXED GAUGES? Today, Ms. Song received a phone call from a customer, the content is that the customer needs his customized  pan head phillips stainless steel screws must ensure cross the GO NO GO FIXED GAUGES, then he hoped Ms. Song can take a video with him, he wants to see the process of it. I was typing away at my desk, and I realized that this was something to write about. So I asked Ms. Song, “why do  pan head phillips stainless steel screws  need to pass GO NO GO FIXED GAUGES? Ms. Song told me that the ring test is not only a way to prevent manufacturers from cutting down materials, but also a control measure to ensure that if the tooth marks are qualified so that they can meet the performance requirements. Ms. Song took the  pan head phillips stainless steel screws  as an example, hand in hand to let me watch a detection process through the GO NO GO FIXED GAUGES. In additio...

  How do you distinguish the phillips self tapping screws according to the head shape? phillips self tapping screws  are often used for the connection of smaller parts. It has pan head screws, cylinder head screws, raised countersunk screws and countersunk screws. The head of the pan head screw and the head screw have a higher strength and are connected to the common parts; the head of the half countersunk head has an arc shape, and its top end is slightly exposed after installation and is beautiful and smooth, generally used for instruments or Precision machinery; countersunk screws are used to prevent the nail head from being exposed. The  phillips self tapping screws  are similar to the slotted ordinary screws and can be replaced by each other. However, the trough  phillips self tapping screws  have a high trough strength, are not easy to be bald, and have a beautiful appearance. When using, it must be loaded and unloaded with the matching cross-shaped s...

  Phillips pan head self tapping screw factory custom Shenzhen Shi Shi Tong Metal Products Co., Ltd. has 21 years of experience in producing  phillips pan head self tapping screw . The Phillips pan head tapping screws can also be divided into several types. For example, the self-tapping screws have self-tapping flat tails, self-tapping tails, and tapping plastic. Of course, wood screws are also a type of self-tapping screws, but wood screws have a longer tooth pitch. The tip end of the  phillips pan head self tapping screw  can be represented by C type, and the flat tail is represented by F type; C type (spike tail) self-tapping screw is easy to position and easy to assemble, if the sheet metal is relatively thin (such as 0.5mm), even if there is no pre- Punch, you can also break in; F type (flat tail) does not have the above characteristics, but in some occasions where C-type self-tapping screws are dangerous (such as the tip will hurt the human body), you can ...

  Can the self tapping phillips head screws provide a certificate? Mr. Wang asked the Shi Shi Tong screw manufacturer about a  self tapping phillips head screws  and asked if we can produce them. How long is the delivery time? What is the price? Because Mr. Wang’s  self tapping phillips head screws  have some parameters that have not been confirmed, we are still unable to quote Mr. Wang for the time being. So we asked what the missing parameters are, how many are needed, and what the surface treatment is. Mr. Wang said that he had to start with 10,000 screws at the beginning, and the surface was made of blue zinc, which was hardened by carbon steel 1018. After confirming with Mr. Wang, we gave Mr. Wang a quote.   After receiving the quotation of the  self tapping phillips head screws , Mr. Wang found that the price was at his psychological price, and the delivery date was OK. He thought about giving us the screws. Later, Mr. Wang remembered that h...

  What Are The Models Of Phillips Head Self Tapping Screws? Are you still worried about the various specifications of the cross recessed pan head tapping screws? Shenzhen Shi shi tong screw manufacturers provide you with a detailed  phillips head self tapping screws  model, allowing you to easily place orders. GB 845-1976  phillips head self tapping screws  model, this is the self-tapping tip and self-tapping flat tail can be used. It is also said that your top is only the self-tapping tip and the flat tail. I want to cut the  phillips head self tapping screws . What do you think of this size? In fact, except for the size of the threaded tail portion of the screw, the other dimensions are the same. The size of the tail is in accordance with the standard. Just tell the screw manufacturer the model of the type of tooth you want, they can give you the specific size. The size of GB/T 845-2017 is different from that of GB 845-1976, so make sure you know which st...