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Ideal for roofing, outdoor structures, and moisture-prone applications with invisible aesthetics.
Leak-Proof Sealing: Integrated rubber washer ensures waterproof, corrosion-resistant connection.
Self-Drilling Efficiency: Sharp drill-tail tip for fast, one-step installation in metal sheets.
Durable Finish: Yellow zinc plating offers superior rust protection and professional appearance.
| Property | Specification |
| Product Name | Hex Head Self-Drilling Screw with Washer |
| Head Type | Hexagon |
| Finish | Yellow Zinc Plated |
| Measurement System | Metric |
| Washer Material | EPDM / PC (Transparent) |
| Application | Roofing, Metal Profiles, Outdoor Structures |
| Custom Support | OEM, ODM, OBM |
Factory Direct Price | Fast Delivery | OEM Service
Email: admin@changhua-electrical.com | WhatsApp: +86 181 3296 8158
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![]() Advanced Cold Heading Precision manufacturing. | ![]() Optical Sorting 0-PPM defects. | ![]() Lab Testing Tensile & Salt Spray. |
![]() Roofing Projects Leak-Proof Sealing | ![]() Metal Profiles Quick Installation | ![]() Outdoor Structures Corrosion Resistance |
Q: Can I get free samples?
Yes! We provide free samples for standard self-drilling screws. You only need to cover the shipping cost.
Q: What washer materials do you support?
EPDM/PC transparent washers standard. Custom options available.
Q: What certifications do you have?
We are ISO9001:2015 Certified. Every shipment comes with a Factory Quality Inspection Report.
Q: What is your delivery time?
Stock items: 3-7 days. Mass production: 20-30 days.
Q: Can you produce according to drawings?
Yes, OEM/ODM is our strength. Send us CAD drawings for a quote within 24 hours.
Q: What are your payment terms?
We generally accept T/T (30% deposit, 70% before shipment). For long-term partners, we can discuss L/C.
Get in touch for more information, pricing, or custom requirements.