Shenzhen Shi Shi Tong Metal Products Co., Ltd

In the past two years, the screws produced by Shenzhen Shi Shi Tong screw manufacturers have been sold to the United States, Canada, the United Kingdom, Australia and other places. Among them, there are several kinds of  4 inch long screws  alone. The top one is a cup cap head hexagon socket  4 inch long screws , all made of carbon steel material, including white zinc plated, black zinc plated and nickel plated. Anyone familiar with the screw industry knows that the longer screw, the more expensive the electroplating cost. Sometimes it even needs to be processed on the ground, which makes the price even more expensive. This one is a carbon steel phillips hex washer head  4 inch long screws,  surface treatment is eco color zinc plated. If you look closely at the picture, you can also see the serration below the head. This spline is mainly for anti-slip locking function. It’s confusing to see why these long screws are half thread. This is mainly beca...

In recent years, with the development of the manufacturing industry, long screws have been used in many places, and even infinitely long screws have been asked. Because they are worried that we can’t produce the infinitely long screws they need. The machine used by Shi Shi Tong screw manufacturers to produce long screws is a mold clamping machine – in theory, it can produce  infinitely long screw . At present, the longest screw produced by Shi Shi Tong screw manufacturers is 1.78 meters. When some customers came to our factory to inspect, we saw a lot of long screws on our table and asked us: “Why are our long screws all machine half thread, or  infinitely long screw  can only be used as a machine half thread.” In fact, the  infinitely long screw  is not only machine half thread, but also can be used for full thread and self-tapping. But there are very few full thread and self tapping. Why are there so few full thread? One: If the long screws are full thread,...

There are many places to pay attention to the  micro fasteners screws  used on the plastic plate. Firstly, this screw is made of metal material. The material of the plastic plate is different, and the density of the two is different. Plastic board on the use of  micro fasteners screws  general force is small, thread type is best to consider tapping, tapping screw type is advantageous to the thread, not easy to loose, the determination of the tightening torque and the corresponding bottom hole diameter should be through the use of environmental simulation to get, and not easily to decide according to the data, otherwise it will cause serious consequences. The  micro fasteners screws  used on the plastic plate should be paid attention to prevent screw sliding thread. There are several main reasons for screw sliding thread on the plastic plate. ★Shrinkage depression of inner wall of bottom hole. ★Material problem of plastic parts. ...

As a screw manufacturer, it is our happiest thing to produce satisfactory screws for our customers. Enter the theme, what is a  precision screw ? Precision screw  can also be called micro screws. They are generally used in connecting precision glasses such as glasses, watches, mobile phones, electronic products, etc. Generally, the tolerances on screws are strict. Precision small screws are also divided into precision self-tapping screws and small machine screws. Self-tapping screws are precision screws for self-tapping thread. The screw head can be pan head, flat head, and groove type can also be customized according to your needs. The machine small screws are small screws of mechanical threads, and the selected thread are different depending on the scene used. Maybe you will ask, how big is the size of a small  precision screw ? Shenzhen Shi Shi Tong Screw Factory is specialized in the production of precision small screws....

Screw is not long enough ? Custom screw factory, mold clamping screw manufacturers tell you how long you want I don’t know if you have encountered such a situation in your life. In the case of spot screws that may be bought in the store, the  screw is not long enough . Because it can be in stock on the Internet, it is generally standard. But sometimes you may customize the product itself, so the stock screw sometimes can not meet your needs. What if the  screw is not long enough ? Then I suggest you go to a manufacturer specializing in custom screws to produce the screws you need. The size you want can be produced according to your requirements. There is a screw factory in Shenzhen, which is mainly for non-standard custom. The long screws they can make can be infinitely long. It is not a normal screw factory, because they have a die spotting machine that specializes in producing long screws. Therefore, the long screw is one of the main advantages of the Shi Shi Tong scr...

Many people know about  self   tapping screws , but they only know about self-tapping screws, that is, screws with screw tail tip or drill-tail, but they do not know that there is another type of self-tapping flat end screw.The thread pitch of  self   tapping screws  are usually relatively large, so as to quickly “self-tapping” to the place to be attacked. Compared with the above two screws, it can be quickly identified which one is self-tapping screw and which one is machine thread screw. The biggest difference between  self   tapping screw s  and machine screws are these: self – tapping is direct, while machine screw requires a nut.Many people have seen that ultra low head no slotted screw, and will continue to ask: how to remove the screw? Must not see inside, usually this kind of screw many are machine thread, or have a nut at the bottom of the set of the below, unless special custom design s...

Generally  little screw  can not be twisted is generally caused by rust. Welding handles or heating is a commonly used removal method, but  little screw  size is not applicable; It is best to use kerosene to penetrate for a few hours before twisting it with vibration. Specific operation method: ★The first for the word and the cross recessed  little screw  can stand upright screwdriver, vibration screwdriver back(pay attention to strength), and then twist. ★The second for the hexagonal head screw can directly vibrate(note the strength), and then twist; If there are no edges, use a saw or a flat shovel to artificially slot the screw head and twist it out with a screwdriver. ★The third  slide or break in the clear situation, you can first drill with a small bit(note the vertical bit), and then clean the remaining screws in the screw hole, repair with an equal diameter screw cone. If not, only with a larger than the rust screw size drill rusty sc...