Premium Hot-Dip Galvanized Hex Nuts Made in China
FOB Price | 1,000 pieces (Min. Order)
Custom specifications and OEM service available
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Product Description
Our Hot-Dip Galvanized Hex Nuts are designed for superior corrosion resistance in harsh outdoor environments. Made from high-strength carbon steel, they meet DIN 934 and ISO 4032 standards, making them ideal for solar PV installations, steel structures, wind energy systems, and other demanding industrial applications.
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Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | Hot-Dip Galvanized Hex Nut |
| Material | Carbon Steel (Q235 / 35K / 45#) |
| Strength Grade | 4 / 6 / 8 / 10 |
| Thread Type | Metric / UNC / UNF |
| Surface Treatment | Hot-Dip Galvanized (≥ 50μm zinc coating) |
| Standard Compliance | DIN 934 / ISO 4032 / ANSI B18.2.2 |
| Size Range | M8-M36 / #8-1.5″ |
| Corrosion Resistance | ≥ 1000 hours Salt Spray Test |
| MOQ | 5,000 pcs |
| Packing | 25kg/carton or Customized Small Box & Pallet |
Hot-Dip Galvanized Hex Nut Detailed Specifications (M8-M36)
Available Specifications: We provide complete product coverage from M8 to M36, manufactured in full compliance with ISO 4032/DIN 934/GB-T 6170 standards, including all intermediate sizes. Custom specifications available upon request.
| Thread Size (d) | Across Flats (s) | Thickness (m) | Across Corners (e) | Thread Hole (d₁) | Standard Torque (Nm) | Zinc Coating Thickness |
|---|---|---|---|---|---|---|
| M8 | 13 mm | 6.5 mm | 14.38 mm | 8.3 mm | 20-25 Nm | 40-60 μm |
| M10 | 17 mm | 8.0 mm | 18.72 mm | 10.3 mm | 40-50 Nm | 40-60 μm |
| M12 | 19 mm | 10.0 mm | 20.03 mm | 12.3 mm | 70-80 Nm | 50-70 μm |
| M16 | 24 mm | 13.0 mm | 26.17 mm | 16.4 mm | 160-190 Nm | 50-70 μm |
| M20 | 30 mm | 16.0 mm | 32.95 mm | 20.4 mm | 310-370 Nm | 50-80 μm |
| M24 | 36 mm | 19.0 mm | 39.55 mm | 24.4 mm | 540-650 Nm | 60-80 μm |
| M30 | 46 mm | 24.0 mm | 50.85 mm | 30.4 mm | 1000-1200 Nm | 60-90 μm |
| M36 | 55 mm | 29.0 mm | 60.79 mm | 36.4 mm | 1600-1900 Nm | 70-100 μm |
Applications
These galvanized nuts are suitable for various industrial and construction applications:
Solar Fastening
Securing brackets and rails in PV systems, ground-mount and rooftop solar installations. Provides reliable structural support.
Outdoor Infrastructure
Fastening for exposed steel structures, telecom towers, and utility projects. Ensures long-term durability in harsh environments.
Industrial Equipment
Used in heavy equipment, machinery, and construction requiring corrosion-resistant fasteners. Provides reliable performance.
Commercial Solar
Perfect for commercial rooftop and ground-mounted solar installations. Offers reliable fastening for large-scale projects.
Residential Solar
Ideal for residential rooftop solar systems. Ensures secure mounting for home installations with weather resistance.
Utility Projects
Designed for large-scale infrastructure projects with extensive outdoor exposure. Maintains integrity in all weather conditions.
Certifications
Our products meet international quality standards and certifications:
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management
- DIN 934 / ISO 4032 Standards Compliance
- ANSI B18.2.2 American Standards
- Third-party testing and certification
Packaging
Professional packaging solutions for safe transportation:
- 25kg cartons with inner plastic bags
- Custom branded packaging available
- Barcode and QR code labeling
- Moisture-proof and anti-corrosion protection
- Stackable design for efficient storage
Company Introduction
Welcome to Hebei Zixian Fasteners Co., Ltd. – Your Reliable Manufacturer of Galvanized Fasteners and Solar Mounting Accessories from China!
What we offer:
- Full in-house production – from raw materials to packaging
- Solar mid clamps, end clamps, brackets, galvanized bolts & nuts
- ISO-compliant quality control
- Competitive pricing & fast delivery
- OEM & custom fastener solutions for B2B buyers
Contact us today for product catalogs, samples, or quotes:
- Website: zixiansolarparts.com
- Email: xzi675763@gmail.com
- WhatsApp: +86 15630389170
Frequently Asked Questions
1. What is the difference between hot-dip galvanized and electro-galvanized nuts?
Hot-dip galvanizing provides a thicker and more durable zinc layer (~50μm), suitable for outdoor and corrosive environments. Electro-galvanized is thinner and used for indoor use.
2. Can you provide test certificates or salt spray reports?
Yes, we can provide MTC (Material Test Certificate), salt spray test reports, and third-party certifications upon request.
3. What is your lead time?
Typically 7–25 working days, depending on quantity and customization requirements.
4. Can I order small quantities for trial?
For stock sizes, we accept trial orders starting at 1,000 pcs. Custom sizes require a minimum of 5,000 pcs.
5. Do you offer packaging with my brand or barcode?
Yes, we offer custom packaging options including logo printing, label barcode, and pallet wrapping.
Get in Touch
We’ll contact you within 24 hours after submission. For immediate assistance, use the direct contact methods below.
Why Choose Us?
- ✓ 1-on-1 Expert Support – Custom solutions for your specific needs
- ✓ Factory Tours Available – Verify our quality standards in person
- ✓ Global Supply Experience – Trusted by clients in 15+ countries