Product Overview
Our Color-Plated Hex Head Drill Tail Screws are high-strength self-drilling screws designed to fasten metal sheets without pre-drilling. Made from Q235 carbon steel or upgraded 304/410 stainless steel, they meet GB 15856 and Grade 4.8 standards. The colorful zinc coating offers corrosion resistance and visual appeal. With hex head for easy installation and drill tail design for fast penetration, they are ideal for construction and decorative uses. China factory direct supply ensures reliable quality and competitive pricing.
Technical Specifications
| Product Standard | GB 15856 |
| Material | Q235 Carbon Steel |
| Surface Treatment | Color Zinc Plating (Red, Blue, Yellow Available) |
| Strength Grade | Grade 4.8 (Tensile Strength ≥420MPa) |
| Head Type | Hex Head (Compatible with 8mm/10mm Socket) |
| Tail Design | Self-Drilling Double Lead Thread |
| Corrosion Resistance | 96-hour Salt Spray Test |
| Suitable Plate Thickness | 0.5-2.5mm Metal Sheets |
| Available Sizes | Metric: 5.5×20, 5.5×25, 5.5×32, 5.5×38, 5.5×40, 5.5×45, 5.5×50, 5.5×60, 5.5×65, 5.5×70, 5.5×75, 5.5×80, 5.5×90, 5.5×100 (mm) Inch: (7/8″), (1″), (1-1/4″), (1-1/2″), (1-9/16″), (1-3/4″), (2″), (2-3/8″), (2-1/2″), (2-3/4″), (3″), (3-1/8″), (3-1/2″), (4″) |
Application Scenarios
These Color-Plated Hex Head Drill Tail Screws are commonly used across Southeast Asia in applications requiring both functional performance and aesthetic appeal:
Metal Roofing & Cladding
Fastening steel sheets to purlins and frames with color-coordinated appearance
Steel Frame Construction
Connecting light steel components and wall panels in residential and commercial buildings
HVAC and Ventilation Systems
Securing ducting and brackets with firm grip and corrosion resistance
Industrial Warehousing
Used in racking systems, support beams, and assembly lines for durable connections
DIY & General Construction
Suitable for sheet metal work and temporary structures with enhanced visual appeal
Product Quality Certificate
Quality Certification Standards
Product quality is our priority, validated by Hebei Provincial Fastener Product Quality Supervision and Inspection Center. This authoritative provincial institution has rigorously tested our screws, nuts and bolts for material, hardness, strength, precision and corrosion resistance—all meeting or exceeding industry standards. This certification guarantees reliable performance for your projects.
Product Packaging Specifications
Comprehensive Packaging Solutions
- Inner Packaging: 25kg per woven bag or small box, PE bag lining
- Outer Packaging: 900kg wooden pallets or fumigated plywood cases
- Custom Packaging: Logo boxes, barcode stickers available on request
Manufacturing Facility Overview
Advanced Manufacturing Facility
Our 5,000㎡ workshop features clear zones for raw materials, processing, testing and finished goods. Equipped with over 50 advanced CNC machines and cold headers, we achieve ±0.01mm precision from wire to finished fasteners. 20+ skilled staff monitor production, while a dedicated lab with tensile testers and spectrometers ensures strict quality checks—rejecting all substandard products.
Customer Service Policy
Return & Exchange Policy
We stand behind our high-quality fasteners. For defective products, returns are accepted within 7 days of receipt (unused, in original packaging, with defect evidence); we refund product cost (shipping non-refundable). Exchanges for wrong specs or minor defects (unused) are allowed within 7 days, with customer covering shipping. Not accepted: customer-caused errors, used/damaged products, requests after 7 days.
Frequently Asked Questions
What are the advantages of color zinc plating?
Color zinc provides moderate corrosion resistance and a visually distinctive finish. It’s widely used in indoor and light outdoor environments, offering both functional protection and aesthetic appeal for architectural applications.
Can these screws drill directly into steel without pre-drilling?
Yes, the drill tail (self-drilling point) allows direct installation into light to medium gauge steel without pre-holes, significantly reducing installation time and labor costs.
Are different screw sizes available in mixed packaging?
Yes, we support mixed packaging based on quantity and customer requirements. This flexibility helps optimize inventory management for contractors across Southeast Asia. Minimum order quantities may apply.
Is OEM packaging with company logo supported?
Absolutely. We provide printed cartons, plastic boxes, and label customization for OEM clients. This service helps build your brand presence in the Southeast Asian market.
How do you ensure consistent quality?
We follow GB 15856 standards and conduct full inspections for hardness, thread accuracy, and coating thickness. Test reports and quality certificates are available on request to ensure compliance with local regulations.
Contact Us
Need more information about our Color-Plated Hex Head Drill Tail Screws or have special requirements? Our technical sales team is ready to serve customers across Southeast Asia.
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