Shenzhen Shi Shi Tong Metal Products Co., Ltd

  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 a ultra low head cap screws hexagon socket save money like this? A few days ago, Miss Lin found the Shi Shi Tong screw manufacturer to customize a M5×75  ultra low head cap screws hexagon socke t , which was made of stainless steel and provided us with drawings. In Miss Lin’s drawings, the head of the  ultra low head cap screws hexagon socke t  appears to be a piece of the mold, and the thread is fully threaded. After seeing the drawings of Miss Lin, we gave Miss Lin the following suggestions: 1. The head of the ultra low head cap screws hexagon socket is changed to the C head, that is, the head is naturally formed by cold heading, instead of being added with a sleeve mold. If you follow the drawing of Miss Lin, then on the fourth of the accounting price, you need to add the cost of the sleeve mold, and the cost is increased. 2. The full thread is changed to a half thread. Because such long screws use full thread, it is not only difficult to screw when scr...