Mainly used in the furniture industry, such as cabinets, chairs, or other types of box structures, etc.
There is a large shoulder under the head that locks the screw in the wood and prevents softer materials from being pulled in. It has a blunt point and needs to be drilled with a 6mm hole and screwed in.
It is like a steel pin, forming a strong, hard joint, with a large shoulder under the head, which can lock the screw in the wood and prevent the softer material from being pulled in.