The bolt threads are generally cold worked so that the thread blanks within a certain diameter range pass through the twisting plate and the threads are formed by the pressure of the wire. The plastic flow line of the th...
1.Spheroidizing (softening.annealed countersunk screws. When the hexagonal cylinder head bolts are produced by the cold heading process, the original structure of the steel directly affects the forming ability during col...
When we choose the self-tapping screws, we will analyze the influence of various factors on the aperture, and we can get some inspiration from the determination of the aperture size and the relative relationship between ...
When screwing in a self-tapping screw, power (called screwing torque) is required to form or cut the internal thread of the connection. Since the torque is connected, the screw is tightened and reached a certain degree a...
Stainless steel screws can be said to have great advantages in all aspects of manufacturing, use or handling. Therefore, although the fasteners are made of stainless steel, the cost is relatively high, and the cycle life...
The distance between two adjacent teeth on the middle diameter line corresponding to the two points in the axial direction is called the pitch. On the same spiral line, the distance between the adjacent two teeth on the ...
