Industry Knowledge About Auto-Tapping Screw

Auto-Tapping Screw is a self-tapping screw, which is a fastener that can tap its thread. When it is screwed into a drilled or cast hole, it can cause the matching material to produce plastic deformation through its unique structural design, thereby forming matching threads in these materials. It does not need to pre-process the threads and can be directly assembled, greatly improving assembly efficiency.

Classification by material: Common ones include stainless steel self-tapping screws, carbon steel Self-Threading Screw, and alloy steel self-tapping screws. Stainless steel self-tapping screws have good corrosion resistance and rust resistance, and are suitable for corrosive environments such as moisture, acid, and alkali; carbon steel self-tapping screws have high strength and relatively low price but are easy to rust, and usually require surface treatment such as galvanizing and nickel plating; alloy steel self-tapping screws have higher strength and hardness and can withstand larger loads.

Classification by head shape: Including flat head, round head, countersunk head, ingot head, triangle head, and other types. Flat-head tapping screws are suitable for occasions where the connected surface needs to be closely fitted, such as plate connection; round-head tapping screws have a semicircular head and a more beautiful appearance after installation. They are often used in parts where the appearance effect needs to be considered, such as the housing of mechanical equipment; the countersunk head tapping screw head can sink into the surface of the connected material to make the connection surface flat, which is suitable for occasions where a flat surface is required, such as furniture, decorations, etc.; Yuanbao head and triangle head tapping screws are mainly used in special occasions such as steel structures, which can provide better fastening effects.

Classification by driving method: There are slotted, cross-slot, hexagonal, sleeve, and other types. Slotted and cross-slot tapping screws are common screws driven by manual or electric tools. They are easy to use and suitable for a variety of occasions; hexagonal self-tapping screws need to be tightened with a hexagonal wrench, have high anti-slip performance, and are suitable for some connection parts that require a large torque; sleeve tapping screws are usually used for the assembly of mechanical equipment, and are used with a socket wrench, which is convenient and fast.

No need to pre-process threads: During the assembly process, Self-Cutting Screws can directly tap threads on the connected materials, eliminating the pre-tapping process, greatly improving assembly efficiency, and reducing production costs.

Wide range of applications: It can be applied to a variety of materials, such as metal, plastic, wood, fiberglass, asbestos, and resin-impregnated plywood, etc., and can achieve reliable connections between materials of different materials, with strong versatility.

High connection strength: The thread design and self-strength of Self-Forming Screws enable them to provide higher axial and radial forces during connection, thereby ensuring the tightness and firmness of the connection, and can withstand greater tension, pressure, and shear force, and are suitable for connection requirements under various load conditions.

Easy to install: Simple operation, only need to use ordinary screwdrivers or electric or pneumatic tools for installation, no complex equipment and processes are required, convenient and fast, can effectively improve work efficiency, especially suitable for large-scale production and installation operations.

Reusable: In some non-permanent connection situations, Self-Tapping Nails can be easily disassembled and reinstalled without causing serious damage to the connected parts. They have a certain degree of reusability, which improves their economy and practicality.