Hexagonal self tapping bolt is a type of fastener that can be directly drilled and screwed into thin metal plates, plastics, wood and other materials to form threaded connections without the need for pre tapping. The following provides a detailed description from multiple dimensions:
• Structural design
Head structure: The bolt head is hexagonal, making it easy to use tools such as wrenches and sockets for tightening and dismantling. It can apply a large torque to ensure the tightening effect.
Thread characteristics: The thread is coarse and has a large pitch, with a tooth profile angle usually around 60 °, and the thread surface is sharp and sharp. This design enables the bolt to effectively cut or squeeze the connected material during the screwing process, forming a matching internal thread and achieving a tight fit.
Tail shape: The tail is commonly pointed or flat. The pointed tail self tapping bolt has good guidance, making it easy to quickly locate and drill into the material; Flat tail self tapping bolts can provide a larger initial contact area and are suitable for some scenarios that require high positioning stability.
• Material characteristics
Carbon steel: Hexagonal self tapping bolts made of carbon steel have a lower cost and can obtain a certain strength after heat treatment. They are suitable for scenarios such as wooden furniture assembly and ordinary metal sheet connections that do not require high strength. But the corrosion resistance is poor, and rust prevention treatment may be required during use.
Stainless steel: It has excellent corrosion resistance and can maintain stable performance in humid, corrosive gas or liquid environments. It is commonly used in outdoor facilities, kitchen and bathroom equipment, medical equipment and other fields that require high corrosion resistance.
Alloy steel: By adding alloying elements, its comprehensive performance is improved, resulting in higher strength and hardness, as well as better toughness. It is suitable for industries such as aerospace and automotive manufacturing that require extremely high connection strength and reliability.
• Performance advantages
Easy installation: No need to pre machine internal threads on the connected parts, simply use tools to screw the bolts into the material, simplify the installation process, save time and cost, and improve work efficiency.
Strong Tightness: The thread formed by self tapping fits tightly with the bolt, providing reliable fastening force and effectively preventing loosening in thin plate material connections, ensuring the stability of the connection structure.
Wide applicability: It can be connected to various materials, such as metal sheets (usually 0.5-6mm thick), plastics, wood, fiberboard, etc., to meet the needs of different industries and scenarios.
• Application scenarios
Building decoration: In the installation of light steel keel ceilings and gypsum board partitions, hexagonal self tapping bolts are used to fix the keel and gypsum board; When installing doors and windows, they can be connected and fixed to walls, profiles, etc.
Automobile manufacturing: used in the process of automobile body manufacturing to connect thin sheet components such as body coverings and interior parts; In the field of automotive maintenance, it is also commonly used for the replacement and installation of components.
Furniture manufacturing: Assembly of wooden furniture, connection of panel furniture, etc., can be quickly assembled using hexagonal self tapping bolts, and are easy to disassemble and transport.
Electronic products: The assembly of casings for electronic products such as mobile phones, computers, and home appliances can quickly achieve fastening connections on plastic casings, while ensuring a smooth and aesthetically pleasing appearance.
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