NINGBO YONGBIAO FASTENER CO.,LTD
| Payment Terms | T/T |
| Supply Ability | 5000000 Tons/Year |
| Delivery Time | 7-25days |
| Packaging Details | Carton Box/Pallet/Customized |
| Standard | DIN,GB,ISO,JIS,BS |
| Material | 304+435 Stainless steel |
| Size | ST6.3*125mm |
| Color | Plain |
| Grade | 4.8,B8,5.6,10.9,8.8 |
| Delivery Port | Ningbo or ShangHai |
| Head | Hexagon Head |
| Application | Construction |
| Brand Name | YongBiao |
| Model Number | ST6.3*125mm |
| Certification | ISO9001,TUV |
| Place of Origin | ZheJiang China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 5000000 Tons/Year |
| Delivery Time | 7-25days | Packaging Details | Carton Box/Pallet/Customized |
| Standard | DIN,GB,ISO,JIS,BS | Material | 304+435 Stainless steel |
| Size | ST6.3*125mm | Color | Plain |
| Grade | 4.8,B8,5.6,10.9,8.8 | Delivery Port | Ningbo or ShangHai |
| Head | Hexagon Head | Application | Construction |
| Brand Name | YongBiao | Model Number | ST6.3*125mm |
| Certification | ISO9001,TUV | Place of Origin | ZheJiang China |
| High Light | Dacromet hex washer head screw ，Self drilling screw with EPDM washer ，Dacromet self drilling screw | ||
Dacromet Hex Washer Head Self Drilling Screw With EPDM Washer
1.Products Details:
These Dacromet-coated self-drilling screws are high-performance fasteners engineered for exceptional corrosion resistance, validated by 1000-hour salt spray test compliance (per ASTM B117 standards).
2.Key Features:
• Dacromet Coating: A pollution-free, inorganic ceramic coating (composed of zinc/aluminum flakes in a chromium-based matrix) that forms a dense, self-repairing protective barrier. Unlike traditional plating, it avoids hydrogen embrittlement (critical for high-strength applications) and resists solvents, gasoline, and extreme temperatures (up to 300°C/572°F).
• 1000-Hour Salt Spray Resistance: The coating delivers 7–10x better corrosion protection than standard zinc plating, enduring 1000+ hours of neutral salt spray exposure without red rust—ideal for marine, coastal, or outdoor environments.
• Self-Drilling Design: Integrates a sharp, drill-point tip to eliminate pre-drilling, enabling fast installation in metal, wood, or composite materials (paired with a bonded washer for enhanced sealing in roofing/construction uses).
3.Technical Parameters of Hex Self Drilling Screw
| Standard | DIN,GB,ISO |
| Diameter | ST4.2,ST4.8,ST5.5,ST6.3 |
| Length | 25mm,32mm,38mm,50mm,55mm,63mm,75mm,100mm |
| Material | 304+435,316+435 |
| Packaging Details | Carton box |
| Inspection | ISO9001 |
| Service | OEM ODM Customized |
4.Certificate Display
5.Production Process
6.Packaging and shipping Details
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2012
Total Annual:
5000000-6000000
Employee Number:
45~53
Ecer Certification：
Verified Supplier
Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work... Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work...
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