NINGBO YONGBIAO FASTENER CO.,LTD
NINGBO YONGBIAO FASTENER CO.,LTD
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Our self-tapping screws meet the requirements of national standard systems such as GB/T 2670.1 and GB/T 16824.1, as well as international equivalent standards like ISO 7380 and ISO 14585.
Carbon steel self-tapping screws are classified into grades ranging from 4.8 to 12.9 based on their strength. For example, screws in the 8.8 grade have a tensile strength greater than or equal to 640MPa. On the other hand, stainless steel screws are commonly found in the 304 and 410 series.
Metal connection is utilized to secure thin metal components like steel plates, aluminum plates, and iron sheets, typically seen in building wall panels and ventilation ducts.
Non-metallic reinforcement involves the direct creation of threads in plastics, composite materials, and wood, extensively applied in furniture assembly and electronic device casings.
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| Carton Packaging | Outer Cartonbox Packaging | Pallet Packaging |
| Bolts are packed in neutral packaging boxes, with standard quantities arranged in small cartons. The exact number of units per carton will be confirmed with the customer to align with their specific requirements. Customized packaging configurations are available upon request. | The small cartons are then consolidated into larger master cartons for secure transportation and storage. The quantity per master carton can be customized based on client specifications or aligned with standard logistical requirements. | The palletized units are securely wrapped with waterproof film and reinforced with packaging straps. Customer-specific shipping marks or labels are affixed to each pallet, ensuring clear identification and compliance with logistics requirements. This final packaging stage guarantees weather-resistant protection and stability during transportation. |