Introducing a comprehensive overview of our specialized black self-tapping screws, designed to offer unparalleled performance and versatility in various construction sectors.
Sophisticated Appearance and Innovative Structure
• Head Design: Our screws come in various head designs, such as the cross disc head, cross countersunk head, and hexagonal head, each offering unique advantages. The cross head features a circular top with a central groove, ensuring ease of use with a cross screwdriver. The cross countersunk head boasts a flat top with an inclined surface, allowing seamless installation flush with workpiece surfaces for a sleek finish. The hexagonal head, compatible with hex wrenches, is engineered to endure substantial torque, making it ideal for heavy-duty applications.
Screw and Thread Excellence: Designed with a sharp, conical front end, our screws effortlessly cut threads into workpieces, eliminating the need for pre-threading. The self-tapping thread features a larger pitch and deeper depth, with sharp, well-defined edges. These attributes enable more efficient penetration into materials compared to standard machine screws, delivering robust fixing power and stability.
Advanced Surface Coating: The screws' black body is achieved through specialized coatings, including blackening, electrophoresis, and Dacromet processes. Blackening forms a thin oxide film, granting a sleek appearance and basic rust resistance. Electrophoretic coating provides moderate thickness, consistent color, and enhanced rust and wear resistance. For superior rust prevention, Dacromet coatings excel, offering high-temperature resistance and no hydrogen embrittlement.
Distinguished Material Characteristics
Carbon Steel Material: Crafted from medium or low carbon steel, our screws undergo heat treatment to enhance hardness and strength. This ensures smooth penetration into wood, plastic, and thin metal plates while maintaining stability post-connection.
Alloy Steel Performance: High-performance self-tapping screws are available in alloy steels like stainless steel alloy and high-strength alloy steel. Stainless steel variants excel in corrosion resistance, perfect for humid or chemically challenging environments. High-strength alloy screws withstand greater tensile and shear forces, ideal for demanding fastening applications.
Comprehensive Specification and Sizing Options
Diameter Specifications: Available in sizes such as M1.6, M2, M2.5, M3, M3.5, M4, M5, M6, catering to varied applications. Smaller diameters suit electronic devices and small plastic products, while larger sizes are perfect for securing building panels and metal components.
• Length Range: Our screws come in lengths ranging from a few millimeters to hundreds of millimeters, including options like 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, and 50mm. Choose the appropriate length based on material thickness to ensure optimal penetration and secure fastening.
Diverse Application Areas
Architectural Decoration: Perfect for gypsum board ceiling installations, wooden keel stabilization, and fiber board frame connections. These screws efficiently secure boards to keels or walls, significantly enhancing construction efficiency.
Furniture Manufacturing: Essential in furniture assembly, these screws connect wood, artificial boards, and more. Ideal for assembling wardrobes, desks, and chairs, their black finish blends seamlessly with dark wood textures, maintaining aesthetic integrity.
Electronic Appliances: Designed for assembling electronic device casings and securing circuit boards, our screws are perfect for computer cases, mobile phone back covers, and more. The black coating minimizes reflectivity, preserving product appearance and preventing rust inside electronic products for reliable device stability.
• Automotive Manufacturing and Maintenance: These screws are indispensable for installing automotive interior parts and securing components, ensuring durability and longevity in automotive applications.
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