Shenzhen Shi Shi Tong Metal Products Co., Ltd

  Can stainless steel truss head tapping screws be produced with 303 material? Miss Qian from Wuxi, Jiangsu found the Shi Shi Tong Screw Manufacturer through the Internet and gave our customer service staff a drawing of   stainless steel truss head tapping screws . She asked if this drawing could be produced with 303 materials.   Customer service staff saw the drawing of the screw groove as a cross groove, found the screw head size is not far away from the standard, and it is a little larger. The 303 material is generally used in the turning process that is unable to form the cross groove unless the groove is flushed out. Customer service staff suggested Miss Qian use the 304 material to produce  stainless steel truss head tapping screws  and explained to Miss Qian why to change the brand of material. After listening to the explanation, Miss Qian agreed to change the 303 material into 304 material.   However, Miss Qian raised another question, saying that i...

  Can mushroom head stainless steel screws be hardened? Recently, a lot of customers asked whether stainless steel screws can be hardened. For instance, Mr. Yu from Guangzhou also asked if  mushroom head stainless steel screws  can be hardened. Generally speaking, if you want to harden stainless steel screws, then you need to use 410 stainless iron to produce so that you can harden, and commonly used 304 stainless steel is not hard. Mr. Yu asked Whether Shi Shi Tong had made 410 stainless iron screws before.‘Could you take a picture to show me?’ Because he wanted to know whether the color of the finished stainless steel product is much different from that of stainless steel. Then our customer service staff showed Mr. Yu the 410 screws we had made before. After seeing the pictures, Mr. Yu asked how much the  mushroom head stainless steel screws  made of 410 material could achieve by adding hard strength. In general, the strength can reach 6.8. After confirmi...

  mushroom head self tapping screws, why change the surface treatment? A few days ago, at 11 pm Beijing time in China, a customer Erik found the Shi Shi Tong  screw manufacturer  and asked if we could give him a  mushroom head self tapping screws . Erik gave us the drawings of the screws. After receiving an inquiry from Erik, the Shi Shi Tong screw manufacturer found that the surface was black zinc plated. Shi Shi Tong screw manufacturers have also done a few times before the carbon steel black-plated  mushroom head self tapping screws  to customers in other countries, but every time we ship the inspection, the surface of the screws is very good, there is no white appearance phenomenon. However, when the customer received it, the whiteness appeared on the head of the screw. The reason for this is mainly because of the collision during transportation, not only from the outside, but also the self-tapping thread will hurt the surface of the screw, wh...

  What material mushroom head self tapping screws do not rust? Many consumers, when buying a car, or a home appliance, a Taiwanese brain, an outdoor device, after a period of hot sun and rain, will find the exposed screw fasteners rusted Even the corrosion causes the screw to fail, so the screw is replaced. When the customer finds the screw fastener, he will also think about it; can you find a  mushroom head self tapping screws that does not rust? There are many factors that affect the service life of screws.  Mushroom head self tapping screws  are easy to rust. The main reason is to look at the rust resistance of materials. In the case of stainless steel screws, the reason why stainless steel screws can resist rust than carbon steel is that stainless steel contains chromium. It can form a protective film of chromium oxide on the surface of stainless steel screws, which can effectively isolate the contact between stainless steel and air. The oxygen in the air cannot ...

Many consumers, when buying a car, or a home appliance, a Taiwanese brain, an outdoor device, after a period of hot sun and rain, will find the exposed screw fasteners rusted Even the corrosion causes the screw to fail, so the screw is replaced. When the customer finds the screw fastener, he will also think about it; can you find a  mushroom head self tapping screws   that does not rust? There are many factors that affect the service life of screws.  Mushroom head self tapping screws are easy to rust. The main reason is to look at the rust resistance of materials. In the case of stainless steel screws, the reason why stainless steel screws can resist rust than carbon steel is because stainless steel contains chromium. It can form a protective film of chromium oxide on the surface of stainless steel screws, which can effectively isolate the contact between stainless steel and air. The oxygen in the air cannot enter the steel to produce a chemical reaction, thereby ach...