A self-drilling screw is a type of screw that combines drilling and tapping into one operation, eliminating the need for pre-drilled pilot holes. It features a drill-like point that bores into the material, followed by threads that cut their own threads as the screw is driven in. This design allows for quick and efficient fastening, especially in materials like metal and wood.
Technical Parameters
| product name | Drilling Screw |
| Service | OEM/ODM and fast shipping ,strict quality check,free sample for standard fastener |
| customize lead time | 30-60days |
| standard | DIN, ASTM/ANSI JIS EN ISO, AS, GB |
| Steel Grade | DIN: Gr.4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9; SAE: Gr.2, 5, 8; |
| Production Process | M2-M30:Cold Froging, M30-M100 Hot Forging, Machining and CNC for Customized fastener |
| finishing | Black Phosphated , Grey Phosphated, Blue-white zinc , White zinc, Dacromet |
The CSK Head Yellow Zinc Self-Drilling Screw with Cutting Line And Wings is a game-changing fastener that integrates drilling, tapping, and fastening into one seamless operation. Equipped with a drill-like point, cutting line, and winged design, it eliminates the need for pre-drilled pilot holes—saving time and reducing installation errors. Crafted from high-grade steel (DIN Gr.4.8 to 12.9, SAE Gr.2 to 8) with a yellow zinc finish, this screw delivers exceptional corrosion resistance and tensile strength. The countersunk (CSK) head sits flush with surfaces, providing a clean, professional look for both structural and decorative applications. It’s the ultimate solution for projects requiring speed, precision, and reliability across metal, wood, and plastic materials.
Contractors installing metal roofing or siding need fasteners that penetrate steel framing without pre-drilling. This self-drilling screw’s sharp drill point bores through metal sheets and framing with ease, while the cutting line ensures clean, precise holes. The yellow zinc finish resists outdoor moisture and UV rays, preventing rust and extending the lifespan of roofing systems.
Commercial buildings and industrial facilities rely on sturdy steel framing connections. This screw’s high tensile strength (up to 12.9 grade) secures steel beams, studs, and panels, creating rigid structures that withstand heavy loads. Its one-step installation speeds up framing projects, reducing labor costs and project timelines.
HVAC technicians need fasteners that attach thin sheet metal ductwork securely without damaging delicate components. This screw’s gentle drilling action and precise threading create tight bonds between duct sections, preventing air leaks. The CSK head’s flush design ensures smooth airflow and avoids snagging on insulation or wiring.
• All-in-One Functionality: Drills, taps, and fastens in one step—eliminating pre-drilling and saving 50% of installation time.
• Enhanced Cutting Power: Integrated cutting line and winged design reduce friction, enabling smooth penetration of thick metals and hardwood.
• Corrosion Resistance: Yellow zinc plating provides superior protection against rust, ideal for indoor and outdoor use.
• Flush Precision: CSK head design sits perfectly flush with surfaces, enhancing aesthetics and preventing snagging.
• Versatile Compatibility: Works with metal (steel, aluminum), wood, plastic, and composite materials—no need for multiple fastener types.
We offer tailored solutions to meet your project’s specific demands. Customize screw size (M2-M100), steel grade, and shank length to match material thickness and load requirements. Choose from surface finishes like black phosphated, grey phosphated, or dacromet for enhanced corrosion resistance in extreme environments. Our OEM/ODM service supports custom head types, thread patterns, and branding, while non-standard designs are available for unique applications. Production processes include cold forging (M2-M30) and hot forging (M30-M100) to ensure optimal strength. Free samples are provided for standard fasteners, and a 30-60 day lead time for customized orders ensures timely delivery. All products undergo strict quality checks to comply with DIN, ASTM, and ISO standards.
