Drill tail wire, also known as self drilling and self tapping screw, is named after its integrated functions of drilling, tapping, and fastening. The following is a detailed description of it:
• Structural features
Drill bit shaped tail: This is the most prominent feature of the drill tail wire, with a sharp drill bit shape at the tail and a specially processed blade edge, usually designed with multiple blades, which can drill holes on various materials such as metal, wood, plastic, etc. without the need for pre drilling, greatly improving construction efficiency.
Thread section: The thread design is fine and has a high pitch, which can quickly penetrate the material after drilling, forming a tight connection. The thread profile is commonly triangular and has good self-locking performance, ensuring the stability of the connection.
Head types: There are various types, commonly including round head, countersunk head, pan head, hexagonal head, etc. Round head is suitable for scenarios that require high surface aesthetics and do not require complete embedding of materials; The countersunk head can make the surface of the drill tail wire flat after installation, and is commonly used in furniture manufacturing, decoration, etc; The head of the disc head is relatively large, with a large force bearing area and good fastening effect; Hexagonal head is easy to operate with a wrench and suitable for situations that require high torque tightening.
• Material and surface treatment
Material: There are mainly two types: carbon steel and stainless steel. Carbon steel drill tail wire has high strength and relatively low price, but poor corrosion resistance, and is commonly used indoors or in environments with low corrosion resistance requirements; Stainless steel drill tail wire has excellent rust and corrosion resistance, suitable for environments with strong corrosiveness such as humidity, outdoor, and chemical industries.
Surface treatment: To enhance the rust prevention ability of carbon steel drill tail wire, surface treatments such as galvanizing and nickel plating are often carried out. Galvanizing treatment can be divided into electroplating and hot-dip galvanizing. Electroplating has a lower cost and a smoother surface, but its rust prevention ability is slightly weaker; Hot dip galvanizing has better rust prevention performance and is suitable for long-term outdoor exposure scenarios.
• Performance and advantages
Convenient construction: No need for pre drilling and tapping, drilling, tapping, and fastening operations can be completed in one go with electric tools, greatly reducing construction time and labor intensity.
Wide applicability: It can be used for connecting various materials such as metal to metal, metal to non-metal, etc., such as steel structure factory building, color steel plate installation, wooden furniture assembly, etc.
Secure connection: With special thread design and self tapping ability, it can tightly fit with the material, form a reliable connection, and meet the fastening requirements under different working conditions.
• Application areas
Construction industry: used in steel structure buildings to connect components such as steel beams, columns, and color steel plates; In the field of architectural decoration, it can be used to fix keels, decorative panels, etc.
Manufacturing industry: widely used in industries such as automobile manufacturing, home appliance production, container manufacturing, etc., to achieve fast and secure connections between components.
Home installation: In scenarios such as furniture assembly and kitchen and bathroom equipment installation, drill tail wire is a commonly used connector, which is convenient, fast, and stable to connect.
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