HEX HEAD BOLTS WITH SHANK – ISO 4014 / DIN 931

🔩 Partially Threaded Hex Bolts for High-Strength Load-Bearing Applications

ISO 4014 / DIN 931 Hex Head Bolts with Shank are partially threaded bolts designed for applications requiring alignment, shear strength, and consistent clamping. Unlike fully threaded bolts, these fasteners feature an unthreaded portion (shank) that offers improved resistance against bending and fatigue—making them ideal for structural and heavy-duty connections.

At National Fasteners, we manufacture high-performance hex head bolts with shank conforming to ISO 4014 and DIN 931 standards. Our bolts are available in various sizes, grades, and finishes to meet the demanding requirements of mechanical, construction, and industrial applications.

🔧 Product Specifications:

• Standards: ISO 4014 / DIN 931

• Thread Type: Metric (coarse) – Partial Thread

• Size Range: M6 to M72

• Thread Tolerance: 6g

• Material Options:

  • Carbon Steel

  • Alloy Steel

Available Surface Finishes:

• Zinc Plated (Clear / Yellow)

• Hot-Dip Galvanized

• Black Oxide

• Phosphate Coated

• Self-Color (Plain)

• Geomet

⚙️ Key Features:

• Partial thread provides greater shear strength and load-bearing capacity

• Hexagonal head ensures easy tightening with standard tools

• Conforms to ISO 4014 and DIN 931 – globally recognized standards

• Resistant to loosening under vibration

• Available in various mechanical property classes (8.8, 10.9, 12.9)

🔩 Common Applications:

• Structural steel connections

• Heavy equipment and machinery

• Automotive components

• Rail and transportation infrastructure

• Industrial fabrication

• Renewable energy systems and wind turbines

💡 Why Choose National Fasteners for ISO 4014 / DIN 931 Bolts?

✅ ISO 9001:2015 Certified Manufacturing Facility
🧪 100% Thread & Dimensional Inspection
⚙️ Custom Shank Lengths & Coatings Available
🏭 Bulk Production Capacity with Global Shipping
🌍 Trusted by OEMs, EPC Contractors, and Distributors Worldwide

📞 Request a Quote or Sample

Looking for precision-engineered hex head bolts with shank (ISO 4014 / DIN 931) for your project or production line?
Contact us for fast delivery, competitive pricing, and expert support.

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