Shenzhen Shi Shi Tong Metal Products Co., Ltd

  What should I pay attention to for half-thread self-tapping stainless steel screws? For screws, the thread type of the screw is divided into machine thread and self-tapping thread. There are full thread and half thread in the self-tapping thread. So what should be paid attention to when ordering half-thread  self-tapping stainless steel screws ? If the customer says that he wants to order half-thread  self-tapping stainless steel screws , then he needs to know the length of the thread and the diameter of the rod (the part without threads under the head). Especially the diameter of the rod must be known because the size of this place will affect whether the screw needs to be opened. When the diameter of the shaft of the half-thread self-tapping stainless steel screw is too small, the screw manufacturer must also consider whether the size of the head can meet the customer’s requirements and whether it can be expanded using this size of the wire. If the material does not e...

  How to choose stainless steel screw manufacturers? When we cannot find the stainless steel screws we need in the market, then we need to find a screw factory to produce the screws we need. So, how do custom  stainless steel screw manufacturers  choose? Size. When looking for a custom  stainless steel screw manufacturers , we need to know exactly what size we need. Because each screw manufacturer can produce different sizes, for example, some screw manufacturers specialize in the production of screws below M1, some screw manufacturers specialize in the production of M1-M16 screws, and some screw manufacturers specialize in the production of screws above M16. Screw. There is also length. If the length we need is very long, such as about 500mm, then many manufacturers can be eliminated. Remove the screws that are not in this range according to the size we need. Region. In China, there are many areas where screws can be produced, such as Foshan, Shenzhen, Wenzhou, Yong...

  Why is the thread diameter of #6-32 stainless steel Phillips screws different? Among our commonly used screw thread diameters, there are M3, M4, M5, etc., these with “M” in front of them refer to metric threads. In addition to metric threads, there are imperial threads in fasteners, such as #6-32, this means that the thread diameter is #6, and “32” means that there are so many threads in one inch. But if you have measured a lot of #6-32  stainless steel  Phillips  screws , you will find that their thread diameters are somewhat different. Why is this? If it is a standard #6-32  stainless steel  Phillips  screws , their thread diameter range is 3.33mm-3.48mm, this is UNC coarse thread, and the thread angle is the thread size of 60°. At the same time, this thread size also means that the screw is produced according to the 2A tolerance code. In addition to the tolerance code of 2A, #6-32 also has a tolerance code of 3A, and their thread diameter is 3.35m...

  How to install steel self tapping screw? Generally, when we need to install two accessories, we usually need screws to tighten them. It may be a machine screw or it may be a steel self-tapping screw. Then how to install  steel self tapping screw ? Some people say that there is no need to punch holes in the installed parts in advance when installing  steel self tapping screw s, just take the screws and attack them directly. Some people also say that it is necessary to punch holes in the installed parts in advance so that it will be better when fastening. In fact, both ways can be done. If the fitting is not punched in advance, then the  steel self tapping screw  may appear during the installation and be a little crooked when tapped, or the electric screwdriver may not be used, so little effort will be spent in the screw and it cannot be screwed in. If holes are punched in the installed parts in advance, we can tighten the parts quickly when screws are used for ...

  Stainless steel phillips flat head screw why can go wrong? Sometimes, the customer said that he needed to customize the  stainless steel  phillips  flat head screw . After quoting the price to the customer, the customer thought that he could accept the price, so he paid the money. When the drawing was issued for confirmation, the customer said that the shape was not what he wanted. Why is the drawing given by the screw manufacturer to the customer wrong? If the customer does not clearly give the shape of the  stainless steel  phillips  flat head screw , the head of the screw has two shapes, one is the shape of countersunk head, countersunk head can also be called flat head. One is shaped like a pancake, also known as a crepe. Therefore, when the customer says the head shape he needs is a crew cut, the customer service or business needs to confirm with the customer what shape he says the crew cut is, otherwise the communication between two people will...

  Can socket long machine screws be made into steps? Mr. Li wants to order a long screw with a plum blossom in the M6*205 cup head, and he hopes to make a stepped screw with glue on the tail. I found a few screw manufacturers and said that they could not make such  socket long machine screws , and step screws could not be made. Later, Mr. Li found the Shi Shi Tong screw manufacturer and asked if we could do it. This  socket long machine screws  of Mr. Li can be produced by Shi Shi Tong screw manufacturers. According to Mr. Li’s requirements, there are several ways to produce this screw: one is clamping production, but the screw produced in this way will have a clamping line under the head, this clamping line will basically not affect the assembly; the second is clamping and car processing cooperate with production; three are multi-station production. The Shi Shi Tong screw manufacturer told Mr. Li about the advantages and disadvantages of these three produc...

  Why can titanium screw break a head? Screws are generally used as accessories to fasten things, mobile phones, computers, mouse, etc. Above the figure of screws can be seen. But sometimes, when we use, we find that the screws are broken, such as  titanium screw , why do they break? There is not only one reason for  titanium screw  to break. There are many factors that can cause screws to break. If you can see a groove mark where the screw is broken, it is because the groove is too deep that the screw is broken. In such a case, the screw manufacturer should pay attention to the depth of the groove of the screw during production, and need to make the depth of the groove smaller in the next production. If you don’t see grooves in the area where the break is, then there’s probably too much torque during use. No matter what type of product, there is a fixed torque value, when the torque is exceeded, the product will be broken. The same is true of titanium screws. You ne...

  Is there any MOQ for long socket cap screws? When we are customizing fasteners, sometimes the screw manufacturer will say to us, your quantity is not up to our production requirements, we cannot produce for you. When we do not need a lot of quantity, we need to order so much quantity to produce, and we can not use so much. Is there any MOQ for  long  socket cap  screws ? In China, there are many screw manufacturers that can produce  long  socket cap  screws , and The World One screw manufacturer is one of them. For the world screw manufacturers, long screw is also a basic MOQ limit, generally 10,000 MOQ. However, if the long screw style required by the customer is similar to the style produced on our machine, EVEN if the MOQ of Shi Shi Tong is not reached, Shi Shi Tong can still produce for the customer. In addition, if it is a customer who has not cooperated before, the production of long screws can also be carried out accor...

  Can stainless steel flat socket cap screw be made into machine wire with pointed tail? Mr. Xu’s company developed a new product some time ago, so it needed to order a new screw. The engineer gave this  stainless steel flat socket cap screw  a threaded design with a machine-threaded tail. Mr. Xu had asked a screw manufacturer to produce this new screw for him, but the screw tails they produced did not meet his requirements. After several samples were taken back and forth, they were always unqualified. Later, Mr. Xu found the supplier again and found the Shi Shi Tong screw manufacturer, and he asked us if we can make the screw with the end of the machine wire? According to Mr. Xu’s drawings, Ms. Song told Mr. Xu that this  stainless steel flat socket cap screw  can be made, but the end of the screw needs to be opened with a pair of rolling thread plates, and the loss of the rolling thread plates will be relatively large. Because Mr. Xu requires th...

  316 stainless steel screws or 304 stainless steel screws good? 316 stainless steel screws  are better than 304 stainless steel screws, the two stainless steel screws are composed of 316 stainless steel screws than 304 stainless steel screws more Mo elements, its corrosion resistance, high temperature performance is better than 304 stainless steel, the other performance is the same. 316 stainless steel screws  are mainly used in food industry and surgical equipment. Molybdenum is added to the screws to obtain a special corrosion resistant structure. It is also used as “Marine steel” because of its better chloride resistance than 304 stainless steel screws. ‍ 304 stainless steel screw is stainless steel cover type, material composition for OCr18Ni9316L, is austenitic stainless steel; Material 316 is OOCr12Mo2Ti, a titanium low carbon stainless steel, alkali resistant and acid resistant (except for medium containing chloride ion). From the corrosion resistance, 316 stainle...

  The thread of the stainless steel phillips screws is very short. Can this be done? Mr. Huang is an old customer of the Shi Shi Tong screw manufacturer. Recently he sent a drawing to Miss Song, asking whether we can make the  stainless steel phillips screws  on the drawing. The  stainless steel phillips screws  on Mr. Huang’s drawing are M3*8, but the size of the thread part is very short, and there are only 2 effective threads. Valid threads do not count the first thread and the last thread because their threads are incomplete and do not count as a valid thread. If the effective thread is too short, it will not tighten. Mr. Huang said that their design is just like this, and considering the problem of locking, they also took measures to design this screw, which is really ok. Their requirement is that the head of the  stainless steel phillips screws  should have A CD pattern, and the tolerance should not exceed. According to Mr. Huang’s requirements, ...

  Why do stainless steel button head screws overring the gauge? In the production of  stainless steel  button head  screws , especially when the machine screw, sometimes will see the production master will take ring gauge to check the thread, this is why? stainless steel  button head  screws  to ring gauge, mainly in order to check whether the thread is standard, the thread is beyond the scope of the standard tolerance, so the customer can’t use, in order to prevent this from happening, screw factory has an internal inspection in the factory, so can solve loss in their internal, if the customer only to find that this kind of thing, losses are likely to be greater. Therefore, in the production of  stainless steel  button head  screws  machine thread, the screw master is needed to use ring gauge to check the thread, and make sure that the use of ring gauge is not lost, and is the screw needed ring gauge. If the inspection with ring ga...

  Is it important to passivate stainless steel phillips screws? stainless steel  phillips  screws  in the production process, such as the head of the process, or the car processing process, the surface of the screw may be stained with the processing of iron filings or some relatively written particles, if these are not removed, it will affect the appearance of the screw surface or will cause the screw rust. Usually, this is done by passivating the surface to remove the debris from the surface. If  stainless steel  phillips  screws  are passivated, not only can the surface of the screw become smoother, the surface will be brighter, but also can enhance the anti-rust and anti-corrosion ability of the screw. Because of different passivation treatments, the testing time of salt spray is different, some can be over 24 hours, some can be over 1000 hours, this is to require the customer to express how long he needs to take the salt spray test, otherwise,...

  How important is it to choose a reliable manufacturer of long machine screws? A few days ago, the Shi Shi Tong screw manufacturer received a customer. The customer came to the Shi Shi Tong factory with his  long  machine  screws  sample and asked us if we could make it, how much would it cost and how long the delivery time would be? Mr. Li said that when he received the customer’s order at the beginning, he asked the supplier in Hebei to make the  long  machine  screws  sample, and the sample test was qualified. Then Mr. Li asked the supplier in Hebei to quote him the bulk price, and the supplier in Hebei gave him a quotation of 1.3 yuan/PCS, and Then Mr. Li gave the price to the customer. After the customer formally placed an order with Mr. Li, Mr. Li paid the deposit to the supplier in Hebei to help him produce the screws. Who knows the supplier in Hebei did not contact Mr. Li after receiving the payment for goods? Mr. Li felt t...

  Should long phillips screws focus on price or quality? Most of the time, when we are customizing screws and pay too much attention to the low price of the product itself, we can hardly require that the quality of the screw is very good, while the quality of the screw with low price and good quality is almost not available. So when we buy  long  phillips  screws , should we pay attention to the price or the quality? When buying  long  phillips  screws , each customer’s focus is different, some on quality, some on price. However, long screws are a little different from other fasteners, the cost of construction will be higher. When we buy something at a high cost, we should pay more attention to its quality. Because of the low cost of screws, we will not feel that they cost us a lot of money when we replace them. However, when the long screws with high cost have to be replaced frequently due to the quality problem, we will not be able to bear it, becaus...