The difference between triangle tooth self-tapping screw and ordinary self-tapping screw

Continuous industrial production or daily use, we often use tapping screws, we are not unfamiliar with ordinary tapping screws, but you know, there is still a triangular tapping screw on the market, many people may know little about it. Today we will take you to understand the difference between triangular tooth tapping screws and ordinary tapping screws.

The differences between the two are as follows:

1. Diameters are different. When calculating ordinary tapping screws, the diameter algorithm begins to calculate the middle and upper part of the screw. The diameter of the triangular tooth tapping screw is calculated according to the size of the entire threaded part of the lead screw.

2. The pitch and the number of teeth are different, the ordinary tapping pitch is high at the bottom, the diamond Angle is clear, the triangle automatic screw pitch is closer to the machine thread, the thread coil has its own standard, and the position and size of the three sides of the thread caliper are different.

3. The surface hardness is different, and the surface of ordinary tapping screws is carburized and hardened, indicating that its hardness is higher than that of triangular tapping screws, but on the whole, the average hardness of triangular tapping screws is higher than that of triangular tapping screws.