How many types of Handan self-tapping nails can be divided into different heads?

　　According to the different heads, it can be divided into: round head, flat head (ie countersunk head), top column head, dome wide side head, big round head (ie big flat head), hexagon socket head, hexagon socket washer head, hexagon head . Round head: It is a commonly used head shape in the past. Flat head: It can replace the new design of round head and mushroom head. The head has a low diameter and a large diameter. The outer circumference of the head is connected to the high-shaped edge that indicates the characteristics, so that it can drive high-intensity torque. There is a slight difference.

　　Top column head: The diameter of the standard flat dome head is smaller than the round head, but it is higher due to the depth of the groove. The smaller diameter increases the pressure on the small area and can be tightly combined on the flange and the increased surface .Because the head is set in the drilling mold to ensure the concentration, they can be successfully applied to the cavity of the inner drilling. Dome wide-side head: Because the under-head inscribed restrains and reduces the wear on the components of the wire, it is widely used in electrical appliances and tape recorders. It provides a more attractive medium-low head type with its sufficient bearing surface. Design type. Large round head: also known as elliptical top and wide-sided head, it is a low-shaped, cleverly designed large-diameter head type. When the combined tolerance of the additional effect allows, it can be used to cover metal plate holes with larger diameters. It is also recommended Replace with flat head.

　　Hexagon socket head: A knot with a wrench head height and hexagonal head size. The hexagon is completely cold-formed by a mold with a reverse hole, and there is an obvious depression on the top of the head. Hexagon socket washer head: Like the standard hexagon socket head type, but at the same time there is a washer surface at the base of the head to protect the assembly from damage. Sometimes things are more important than appearance. Hexagon head: This is a standard type of torque acting on the hexagon head. It has the characteristic of trimming sharp sharp corners to close to the tolerance range. It can be recommended for general commercial use, and can also be applied to various standard models and various A kind of thread diameter. Because of the two processes required, it is more expensive than the general hexagonal socket.

　　The above is what Handan Joy Fasteners summarized for you, for reference only!