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Help CenterSelf Drilling Screw White Zinc Plated Hex Head for Industrial Construction 410 Stainless Steel Full Sizes Free Samples
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Hefei SENOTECH New Materials Co., Ltd is a professional trading company based in Hefei, Anhui, China, established in 2020. We specialize in providing high-quality fasteners and building materials to global industrial clients. Our Self Drilling Screw White Zinc Plated Hex Head made of 410 Stainless Steel is designed for demanding industrial construction applications. With full size availability and free samples, we make it easy for you to test the performance before bulk orders. This screw combines superior drilling capability, corrosion resistance, and ease of installation, making it a reliable choice for metal-to-metal fastening in framing, roofing, and general construction projects.
Product Features & Technical Specifications
- Self-Drilling Point: Eliminates the need for pre-drilling, saving time and labor. The drill tip is engineered to pierce through steel up to 0.125" (3mm) thick efficiently.
- Material – 410 Stainless Steel: Offers excellent hardness (HRC 35-40) and moderate corrosion resistance, ideal for indoor or sheltered environments. Suitable for applications requiring high tensile strength.
- White Zinc Plated Finish: Provides additional protection against oxidation and minor moisture, extending service life in dry or moderate humidity conditions.
- Hex Head Design: Compatible with standard socket wrenches or power tools for fast installation. The large bearing surface prevents pull-through and distributes clamping force evenly.
- Full Size Range: Available from #6 to #14 diameter, and lengths from 1/2" to 6" (or metric equivalents). Custom sizes are also available upon request.
- Thread Configuration: Sharp threads ensure fast and secure engagement with metal substrates. The thread angle and pitch are optimized for high stripping torque.
- Industrial Construction Grade: Designed for light to medium structural applications such as metal decking, steel studs, and equipment mounting.
| Parameter | Details |
|---|---|
| Material Grade | 410 Stainless Steel (AISI 410) |
| Hardness | HRC 35-40 (after heat treatment) |
| Surface Finish | White Zinc Plated (RoHS compliant) |
| Head Type | Hex Head (Hexagon), size may vary by diameter |
| Drill Capacity | Up to 3mm (0.125") steel |
| Thread Type | Self-tapping, coarse or fine thread (depending on size) |
| Packaging | Bulk cartons, plastic boxes, or custom packaging available |
| Free Samples | Yes, limited quantity per request (freight collect) |
Key Benefits for Your Projects: Using our self-drilling screws reduces installation steps, speeds up assembly, and minimizes tool wear. The 410 stainless steel core delivers reliable strength in light structural applications, while the white zinc coating adds a clean appearance and moderate corrosion protection. The hex head allows for high torque driving without slippage, ensuring consistent fastening quality across large installations. Whether you are working on metal building construction, HVAC ductwork, or steel frame assembly, these screws provide a cost-effective solution without compromising on performance.
Why Choose Hefei SENOTECH New Materials Co., Ltd?
As a dynamic trading company founded in 2020, we have quickly established a strong foothold in the global fastener market. Our annual export value of US$1 million to US$1.5 million reflects the trust and satisfaction of customers across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, and South Asia. We strictly source from reputable manufacturers and conduct quality checks before shipping to ensure every batch meets industry standards. Our team is committed to providing prompt communication, competitive pricing, and flexible logistics solutions.
We invite you to request free samples to evaluate the quality firsthand. Once you confirm the specifications, we can offer volume discounts and fast delivery. Our full-size inventory means we can usually ship within 5-10 working days for standard sizes. Contact us today to discuss your project requirements and experience a reliable fastener partner.
Frequently Asked Questions (FAQ)
Q1: What is the difference between 410 stainless steel and 304 stainless steel screws?
A: 410 stainless steel is martensitic, offering higher hardness (HRC 35-40) and wear resistance, making it suitable for drilling and tapping applications. 304 is austenitic with better corrosion resistance but lower hardness. For self-drilling screws, 410 is preferred for strength and sharpness.
Q2: Can these screws be used outdoor or in corrosive environments?
A: The white zinc plating provides moderate corrosion resistance for dry or low-humidity indoor environments. For outdoor or highly corrosive settings, we recommend using our 304 or 316 stainless steel options (available upon request).
Q3: Are the free samples available for all sizes?
A: Yes, free samples are offered for any size within our product range. However, the quantity is limited (e.g., 5-10 pieces per size) and freight costs are typically covered by the customer. Please contact our sales team to arrange.
Q4: What drive size hex socket do I need for these screws?
A: The hex head size varies by screw diameter. Common sizes: #6-#8 use 1/4" hex, #10-#12 use 5/16" hex, #14 uses 3/8" hex. Metric equivalents are also available. We recommend using a magnetic socket for easier handling.
Q5: Can the screws drill through multiple layers of steel?
A: Yes, the drill point can penetrate up to 3mm total thickness. For thicker stacks, pre-drilling may be required. Always test on a sample piece first.
Q6: Do you offer custom length or thread types?
A: Yes, customization is available. Minimum order quantities may apply for non-standard sizes. Please provide your specifications for a quotation.
Q7: How are these screws packaged for bulk orders?
A: Standard packaging is in sturdy cartons (20-50 lbs per box) with poly bags inside. Custom packaging like blister packs or small retail boxes can be arranged upon request.
Q8: What is the lead time for large orders?
A: For standard sizes, we can ship within 5-10 working days after confirmation. For custom sizes or special finishes, lead time is typically 15-20 working days. We also offer express shipping for urgent requirements.
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