The DIN6921 Hex Flange Head Enlarged Bolt is precision-made from high-quality carbon steel or stainless steel. Its one-piece flange design increases the contact area, providing superior anti-slip and anti-loosening performance. This flat-head flange bolt is widely used in machinery, automotive manufacturing, steel structure assembly, and various industrial installations. With precise dimensions, stable connections, and high tensile strength, it meets national standard installation requirements reliably.
| Parameter | Details |
|---|---|
| Standard | DIN6921 |
| Head Type | Flat head with integrated flange, anti-slip teeth, increased contact area for improved anti-loosening |
| Material Grades | 8.8 / 10.9 high-strength carbon steel |
| Surface Treatment | Black oxide, Dacromet, and other anti-corrosion options |
| Size Range | M6–M20; length customizable; flange diameter enlarged per standard |
| Mechanical Properties | Tensile strength, load capacity, and hardness meet national standards; suitable for vibration and impact conditions |
| Applications | Construction machinery, heavy equipment, vehicle chassis, steel structures, and machinery installation |
| Installation Advantage | Single-bolt installation without washers; uniform load distribution and easy assembly |
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