Premium Self-Tapping Screws with Cross Flat Head for Versatile Use

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: 1-1
• Groove: Cross
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 4.8
• Whether to Support Customization: Support
• Use: Standard
• Applicable Industries: Construction, Manufacturing
• Surface Treatment: Black
• Transport Package: Container
• Specification: 1-100
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

Introducing the comprehensive insights into the exceptional black self-tapping screws:

Visual and Structural Elegance

• Ingenious Head Design: Our offerings include a variety of head styles - cross disc head, cross countersunk head, and hexagonal head. The cross disc head features a circular top with a central cross groove, facilitating easy operation with a screwdriver. The sleek cross countersunk head lies flat with an inclined surface, blending seamlessly with the workpiece for a refined appearance. The robust hexagonal head, tightened with a hex wrench, is crafted to endure substantial torque.

Screw and Thread Excellence: The screw's sharp, conical tip allows it to effortlessly carve threads into the workpiece, eliminating the need for pre-threading. Characterized by a larger pitch and deeper thread depth, these self-tapping threads boast sharp, distinct edges for superior penetration and secure fixation, outperforming standard machine screws in efficacy.

Premium Surface Coating: Adorned in a sophisticated black, the screw undergoes specialized coating processes such as blackening, electrophoresis, and Dacromet. The blackening process bestows a thin oxide film, imparting a sleek black look with rust resistance. Electrophoresis offers a consistent hue with formidable rust and wear resistance, while Dacromet excels in rust prevention, enduring high temperatures without hydrogen embrittlement.

Material Mastery

Carbon Steel Robustness: Crafted from medium or low carbon steel, these screws undergo heat treatment to enhance hardness and strength, enabling smooth penetration into materials like wood, plastics, and thin metal sheets, ensuring steadfast connections.

Advanced Alloy Steel: High-performance variants feature alloy steel such as stainless steel alloy and high-strength alloy steel. Stainless steel screws offer superb corrosion resistance, ideal for damp or chemically aggressive environments. High-strength alloy steel varieties withstand significant tensile and shear forces, perfect for high-fastening-strength applications.

Dimensions and Specifications

Comprehensive Diameter Options: Sizes range from M1.6 to M6. Smaller diameters are perfect for electronics and small plastics, while larger diameters are engineered for robust applications like securing building panels and metal components.

• Versatile Lengths: Spanning from a few millimeters to hundreds, lengths include options like 6mm to 50mm. Selecting the right length for the material thickness ensures optimal penetration and secure fastening.

Diverse Application Spectrum

Architectural Wonders: Essential for gypsum board ceilings, wooden keel fixtures, fiberboard, and frame connections, these screws deliver swift and efficient board-to-keel or wall fastening, enhancing construction productivity.

Furniture Artistry: In the realm of furniture, they seamlessly join wood and composite boards in pieces like wardrobes and desks. The black finish elegantly merges with darker woods, maintaining aesthetic integrity.

Electronic Precision: Ideal for electronic casings and circuit board fixation in gadgets like computers and smartphones. The non-reflective black finish prevents glare and rust, ensuring the reliability of electronics.

• Automotive Excellence: Perfect for automobile interiors and component fixation, these screws provide lasting stability and precision in both assembly and maintenance.