GB15856.4 Standard Hex Flange Self-Drilling Screw Zinc Plated for Corrosion Protection
Our Hex Washer Head Self-Drilling Screws are precision-engineered in strict compliance with the Chinese National Standard GB15856.4, ensuring superior quality, consistent performance, and reliable mechanical properties. These screws are designed to drill, tap, and fasten in a single operation, significantly reducing installation time and labor costs by eliminating the need for pre-drilling pilot holes.
- Conforms to GB15856.4 Standard: Guarantees dimensional accuracy and mechanical performance
- All-in-One Function: Drills, taps, and fastens simultaneously, boosting work efficiency
- Secure Fastening: The hex washer head design ensures a firm grip and stable clamping force
- Excellent Corrosion Resistance: Protective coatings extend service life in various environments
| Measurement System | INCH, Metric |
|---|---|
| Standard | DIN, ANSI, GB, JIS, BSW, GOST |
| Process | Cold Forging |
| Finish | Zinc Plated |
| Load Capacity | Medium Duty |
| Usage | For Fastening Metal To Metal |
| HS Code | 7318151001 |
Bolts are packed in neutral packaging boxes with standard quantities arranged in small cartons. Custom packaging configurations are available upon request. Small cartons are consolidated into larger master cartons for secure transportation. Palletized units are wrapped with waterproof film and reinforced with packaging straps, with custom shipping marks available.
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