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 ...

  What is the lead time for long machine screw? Now screw fasteners can be purchased spot through the network, but some screw fasteners are not in stock on the network, they need to find the manufacturer to customize, such as  long machine screw , then how long is the delivery cycle? Suppose that the size of this  long machine screw  is M6*780, the cup head has a hexagon socket and carbon steel material, the required quantity is 10000pcs, and the surface treatment is electrophoresis. If production is carried out according to the above assumption, it needs to be divided into two situations, one is mold opening, and the other is no mold opening. The mold opening time is generally 9-12 working days. The time to debug the machine is about 1 working day. It takes about 4 working days to head and rub the thread. The surface treatment takes about 3-5 days. And it doesn’t even count the time of listing. If there happens to be a machine in the screw factory producing similar ...

  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 the stainless steel torx screw be produced completely by turning? For some customers, they do not like the cold heading production of the screw, think the stainless steel torx screw shape is not delicate enough, not beautiful enough. They prefer to use the machining method to produce the screws, so can the  stainless steel  torx  screw  be produced completely in the machining method? If the  stainless steel  torx  screw  is produced by the way of machining, then it is necessary to consider whether the shape of the torx can be formed by the way of machining. In general, the torx shape is not produced by the way of machining, but by cold heading to form this shape. If the customer must be machined to produce the appearance of the  stainless steel  torx  screw , then the groove type of the screw needs to be produced by cold heading, and then the semi-finished product needs to be machined so that the shape of t...