Audited Supplier
Shenzhen Dahe Industrial Co., Ltd., established in July 2003 and headquartered in Shenzhen, is one of the earliest self-drilling screws manufacturers in China and the first full-process automatic assembly line manufacturer in the Asian self-drilling screw industry. It is a key project in Hebei Province, China, and has now developed into a self-drilling screw and self-tapping screw manufacturer with the largest scale, the highest output and the most advanced intelligent automation in Asia.
At Shenzhen Dahe Industrial, we operate as a full-chain manufacturing enterprise. From raw materials, such as steel, to packaging with cartons, every step of the production process is completed in our facility. This integration allows us to maintain high standards of quality and efficiency.
All our production processes are strictly controlled in accordance with ISO 9001 and FM certification standards. This ensures that we not only meet but exceed industry expectations for quality and reliability.
| DAHE Yellow Zinc Plated Phillips Countersunk Flat head Self Drilling Screws with Expansion Wings | |
 | Material |
| Carbon Steel 1022A | |
| Surface Treatment | |
| Yellow Zinc plated,Blue white zinc plated, Dacromet,Ruspert Customized | |
| Size | |
| ST3.2-ST8.0/5mm-300mm or Customized Size | |
| Quality | |
| Sample Testing Or Third-party Inspection | |
| Price | |
| Customized Production With Big Discount | |
| Lead Time | |
| In Stock Within 7 Days, Cusomitzed 15-30 Days | |
| Diameter(mm) | Length(inch) | Length(m/m) | Drill Point(m/m) | Self-drilling capability(mm) |
| 3.5mm/6# | 3/8'' | 10 | 2# | 0.5-1.0 |
| 1/2'' | 13 | 2# | 0.5-1.0 | |
| 5/8'' | 16 | 2# | 0.5-1.0 | |
| 3/4'' | 19 | 2# | 0.5-1.0 | |
| 1'' | 25 | 2# | 0.5-1.0 | |
| 3.9mm/7# | 1/2'' | 13 | 2# | 0.8-1.5 |
| 5/8'' | 16 | 3# | 0.8-1.5 | |
| 3/4'' | 19 | 3# | 0.8-1.5 | |
| 1'' | 25 | 3# | 0.8-1.5 | |
| 4.2mm/8# | 1/2'' | 13 | 2# | 1.0-2.0 |
| 5/8'' | 16 | 2# | 1.0-2.0 | |
| 3/4'' | 19 | 2# | 1.0-2.0 | |
| 1'' | 25 | 3# | 1.0-2.0 | |
| 4.8mm/10# | 1/2'' | 13 | 2# | 1.0-3.0 |
| 5/8'' | 16 | 2# | 1.0-3.0 | |
| 3/4'' | 19 | 3# | 1.0-3.0 | |
| 1'' | 25 | 3# | 1.0-3.0 | |
| 1-1/4'' | 32 | 3# | 1.0-3.0 | |
| 1-1/2'' | 38 | 3# | 1.0-3.0 |
 | 1.Countersunk Head Design The countersunk head allows the screw to sit flush with the material surface after installation, providing a clean and smooth finish.Ideal for applications requiring a sleek surface, such as furniture and architectural decoratio |
| 2.Reinforced Ribs Ribs under the head enhance the self-tapping ability, making penetration into materials easier while reducing the risk of thread stripping. Improves locking strength, ensuring a more secure connection. | |
| 3.Self-Drilling Tip The drill point allows for direct penetration without the need for pre-drilling, significantly increasing installation efficiency. Suitable for fastening metal-to-metal, metal-to-wood, and other material combinations for quick and stable installation. |
