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Help CenterChina Manufacturer Drilling Screw Stainless Steel 410 Wafer Head White Zinc Free Samples Wholesale Price
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Welcome to Hefei SENOTECH New Materials Co., Ltd – your trusted China supplier of high-performance drilling screws. As a trading company established in 2020, we have rapidly built a global network exporting to over 20 countries across North America, South America, Europe, Africa, Oceania, and Asia. Our annual export value of US$1–1.5 million reflects our commitment to delivering cost-effective, reliable fasteners. Today, we are proud to present our Stainless Steel 410 Wafer Head Drilling Screw with White Zinc Plating – a product that combines corrosion resistance, self-drilling efficiency, and competitive wholesale pricing. Whether you need free samples for testing or bulk orders, we are ready to support your projects.
Product Overview
This drilling screw is specifically designed for fastening metal sheets to metal or wood substructures. The wafer head provides a low-profile finish, while the self-drilling point eliminates the need for pre-drilling, saving time and labor. Made from stainless steel 410, it offers excellent hardness and moderate corrosion resistance, suitable for indoor and outdoor applications. The white zinc coating adds an extra layer of protection and a clean appearance.
Key Features & Technical Specifications
- Material: Premium stainless steel 410 (martensitic) – hardened for high tensile strength and drillability.
- Head Type: Wafer head – flat and wide, ideal for thin metal panels and low-profile fastening.
- Surface Treatment: White zinc plating (clear or yellow chromate optional) – provides corrosion resistance and aesthetic appeal.
- Drilling Point: Self-drilling (drill point sizes #2, #3, #4, #5) – drills through metal up to 0.125" (3.2mm) thick without pilot hole.
- Thread Design: Sharp threads with high thread count ensure strong grip and reduce strip-out.
- Size Range: Diameters from #8 to #14, lengths from 1/2" to 4" (custom length available).
- Hardness: Rockwell C 38-45 for 410 stainless – suitable for hardened steel and aluminum.
- RoHS Compliant: Our white zinc process meets environmental standards (available upon request).
| Parameter | Value | Remarks |
|---|---|---|
| Material | Stainless Steel 410 (AISI 410) | Equivalent to 1Cr13 |
| Head Diameter | 0.400" – 0.500" (depending on size) | Wafer head profile |
| Drill Capacity | Up to 0.125" (3.2mm) mild steel | Point #2–#5 |
| Tensile Strength | ≥ 700 MPa (approx.) | After heat treatment |
| Corrosion Resistance | Moderate (salt spray test 48+ hours) | White zinc coating adds protection |
| Temperature Range | -40°C to +300°C | Suitable for most environments |
| Driving System | Phillips (PH2) or Hex (optional) | Customizable recess |
Why Choose Our Drilling Screws?
- Time Saving: Self-drilling design eliminates pre-drilling, reducing installation time by up to 50%.
- Cost Efficiency: Direct factory pricing from a China manufacturer – wholesale price with no middleman markup.
- Reliable Quality: Each batch is tested for hardness, drillability, and coating adhesion before shipment.
- Free Samples: We offer free samples (up to 50 pcs) for evaluation; you only pay shipping if required.
- Custom Packaging: Bulk bags, retail boxes, or private label packaging available with your brand.
- Flexible MOQ: Whether you need 5,000 or 500,000 pieces, we can adjust to meet your inventory needs.
- Global Export Expertise: Shipped safely to over 20 markets with proper documentation (packing list, invoice, BL).
Trust & Credentials
Since 2020, Hefei SENOTECH has grown an annual export value of US$1–1.5 million by focusing on customer satisfaction and product consistency. Our main markets span across North America, Europe, Southeast Asia, Africa, Oceania, and the Middle East – a testament to our ability to meet diverse quality and packaging requirements. We work with experienced factories that understand the nuances of stainless steel 410 fastening, ensuring your screws arrive with consistent threads, sharp points, and even coating. Our team provides prompt communication, competitive pricing, and after-sales support. When you choose SENOTECH, you choose a partner committed to your project's success.
Ready to try our Stainless Steel 410 Wafer Head Drilling Screws? Contact us today to request free samples, get a wholesale quotation, or discuss custom sizes. We are here to help you fasten your future.
Frequently Asked Questions (FAQ)
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Q: What is the difference between 410 and 304 stainless steel for drilling screws?
A: 410 is martensitic stainless steel that can be heat-treated to high hardness, making it suitable for drilling into harder materials like steel. 304 is austenitic, softer, and more corrosion-resistant but not ideal for self-drilling applications. 410 is the standard choice for self-drilling screws where moderate corrosion resistance is acceptable. -
Q: Can I get free samples before placing a large order?
A: Yes, we offer free samples (typically 10–50 pieces depending on size). You just need to cover the shipping cost if applicable. This allows you to test the screw's performance in your specific application. -
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is flexible. For standard sizes in stock, we can start from 5,000 pieces. For custom sizes or special finishes, please inquire; we can negotiate based on your volume. -
Q: How is the white zinc coating applied? Is it environmentally friendly?
A: The white zinc coating is applied via an electroplating process that meets RoHS requirements. It provides a bright, uniform finish with good corrosion resistance. Our process is compliant with international environmental standards (certificates available upon request). -
Q: What drilling capacity does this screw have?
A: Depending on the point size, these screws can drill through mild steel up to 0.125" (3.2mm) without a pilot hole. For thicker materials, we recommend testing or using a larger point. -
Q: Can you provide custom packaging with my company logo?
A: Absolutely. We offer private labeling services. You can choose box labels, shrink wrap, or bulk bags with your branding. Minimum volume for custom packaging applies. -
Q: How long does shipping take to North America or Europe?
A: For air freight, usually 5–7 business days. For sea freight, 20–30 days depending on the port. We will provide a tracking number once shipped. -
Q: Are these screws suitable for outdoor use (exposed to rain)?
A: Yes, the white zinc coating provides moderate corrosion protection. For extended outdoor exposure, we recommend our optional clear chromate or a higher-grade coating. Please contact us for recommendations based on your environment.
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