HSFG / STRUCTURAL HEAVY HEX NUTS – ASTM A563M

🔩 Robust, High-Strength Nuts for Heavy-Duty Industrial Applications

ASTM A563M Heavy Hex Nuts are engineered to meet stringent mechanical and chemical requirements, providing superior strength and durability for structural, machinery, and construction uses. These nuts feature a thicker profile and larger surface area compared to standard hex nuts, ensuring reliable load distribution and resistance to loosening in demanding environments.

At National Fasteners, we manufacture ASTM A563M heavy hex nuts with precise threading and tough materials, ideal for critical fastener assemblies requiring high tensile strength and toughness.

🔧 Product Specifications:

• Standard: ASTM A563M

• Size Range: M12 to M36

• Thread Type: Metric Coarse Thread

• Material Options:

  • Carbon Steel (Grades 8S, 10S)

  • Alloy Steel

Surface Finishes Available:

• Zinc Plated (Clear / Yellow)

• Black Oxide

• Hot-Dip Galvanized

• Phosphate Coated

• Plain (Self-Color)

⚙️ Key Features of ASTM A563M Heavy Hex Nuts:

• Heavy hex profile provides enhanced strength and grip

• Manufactured per ASTM A563M mechanical property standards

• Resistant to wear, corrosion, and high torque applications

• High tensile strength for structural and mechanical use

• Compatible with ASTM A325 and A490 bolts for structural connections

• Ideal for heavy machinery, bridges, buildings, and industrial equipment

🔩 Common Applications:

• Structural steel connections

• Bridge and heavy infrastructure projects

• Machinery and equipment assembly

• Mining and construction equipment

• Oil & gas and power plants

• Automotive and heavy vehicle manufacturing

💡 Why Choose National Fasteners for ASTM A563M Heavy Hex Nuts?

✅ Certified Quality Control to ASTM Standards
🧪 Comprehensive Testing for Strength, Hardness, and Dimensions
⚙️ Custom Sizes, Grades, and Finishes Available
🏭 Bulk Manufacturing Capabilities with Short Lead Times
🌍 Trusted Supplier for Domestic and Global Engineering Firms

📞 Request a Quote or Sample

Looking for durable, high-strength ASTM A563M heavy hex nuts?
Contact us today for pricing, technical assistance, or custom manufacturing.

👉 Request a Quote | 📧 sales@nationalfasteners.in | 📞 +91 70093-08799