DIN 6921 Manufacturer | Exporter & Supplier | Dipti Metal
DIN 6921 – Hexagon Flange Bolts
Manufacturer, Supplier, Exporter, Stockist & Distributor – Dipti Metal Industries (India)
🏢 Company Introduction – Dipti Metal Industries
Dipti Metal Industries is a trusted DIN 6921 manufacturer, DIN 6921 supplier, DIN 6921 exporter, DIN 6921 distributor, and DIN 6921 stockist of industrial fasteners, bolts, and precision-engineered components. Headquartered in India, we specialize in supplying standard and custom mechanical fastening solutions that meet DIN, ISO, ASTM, BS, and JIS standards.
With a global footprint across Europe, North America, South America, Middle East, Africa, and Asia, we deliver to industries such as automotive, oil & gas, railways, infrastructure, shipbuilding, and general engineering. Our commitment to quality, precision, and global logistics has made us a reliable partner for over three decades.
🌍 Exporting to 60+ countries | 🔍 OEM & bulk manufacturing | 🛠️ Custom fastener solutions
🔩 DIN 6921 Hex Flange Bolts – Overview
DIN 6921 standard specifies Hexagon Flange Bolts with coarse metric threads and an integrated flange under the head. This flange acts like a built-in washer, distributing load evenly and improving resistance against loosening from vibrations. These bolts are ideal for dynamic, high-torque applications.
Also known as: Hex Head Flange Bolts, Serrated Hex Flange Screws, Flanged Hex Bolts
📐 Product Specifications
| Parameter | Specification |
|---|---|
| Standard | DIN 6921 (Superseded in part by ISO 1665) |
| Thread Type | Metric Coarse |
| Head Style | Hexagon with Flange |
| Materials | Steel, Alloy Steel, Stainless Steel (A2-70, A4-80) |
| Strength Grades | 8.8, 10.9, 12.9 |
| Finishes | Black Oxide, Zinc Plated, HDG, Geomet, Plain |
| Certifications | ISO 9001, CE, EN 10204 3.1, ROHS, PPAP (on request) |
📏 DIN 6921 Bolt Dimension Table
| Thread Size (d) | Flange Diameter (dc) | Head Height (k) | Across Flats (s) | Pitch (P) |
|---|---|---|---|---|
| M6 | 14.2 mm | 6.0 mm | 10 mm | 1.0 mm |
| M8 | 17.9 mm | 8.0 mm | 13 mm | 1.25 mm |
| M10 | 21.8 mm | 10.0 mm | 15 mm | 1.5 mm |
| M12 | 26.0 mm | 12.0 mm | 18 mm | 1.75 mm |
Need imperial or custom dimensions? We can manufacture as per drawing/spec.
🏗️ Common Applications
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Automotive industry – Engine, chassis, and brake assemblies
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Railway infrastructure – Tracks, joints, couplers
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Heavy machinery – Gearboxes, compressors, diesel engines
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Steel structures – Frame connections, tension joints
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Robotic assembly lines – Cost-effective fastening
✅ Key Benefits of DIN 6921 Flange Bolts
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Built-in flange eliminates the need for external washers
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Improves load distribution and tightening torque
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Ideal for vibration-prone environments
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Cost-effective for automated installations
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Available in bulk packaging and private labeling
🌍 International Equivalents & Similar Standards
| Equivalent Standard | Region / Notes |
|---|---|
| ISO 1665 | Global – Full thread hex flange bolts |
| JIS B1189 | Japan – Serrated and non-serrated hex flange bolts |
| ASME B18.2.1 | USA – Modified flange bolts with similar performance |
| UNI 9328 | Italy – Comparable to DIN 6921 |
🧾 Marking, Traceability & Packaging
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Grade and batch marking available (laser/embossed)
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Heat number traceability with mill test certificates
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Export-grade packaging: HDPE bags, wooden crates, pallets
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Custom barcoding and labeling as per international customer norms
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📞 Contact Dipti Metal Industries
Looking for a certified manufacturer and global exporter of DIN 6921 Hexagon Flange Bolts? Whether you’re an end-user, distributor, or procurement company, we offer competitive pricing, fast delivery, and technical support.
✅ Request a Quote Today | ✅ OEM Customization Available
