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Metric Class 10.9 Hex Flange Screw, Non Serrated, DIN 6921, Zinc CR+3
Our Metric Class 10.9 Hex Flange Screws manufactured to DIN 6921 with a non‑serrated flange and Zinc CR+3 finish are high‑strength fasteners designed for demanding mechanical, automotive, and industrial applications. Produced from alloy steel and heat‑treated to Class 10.9 specifications, these screws provide superior tensile strength, high clamp load, and excellent durability for critical load‑bearing assemblies.
The non‑serrated flange functions as an integrated washer, evenly distributing load across the mating surface without biting into or damaging it. This makes these fasteners ideal for applications where surface protection, controlled torque values, and reusability are important. The Zinc CR+3 (trivalent chromium) plating enhances corrosion resistance while providing a clean, bright appearance suitable for indoor and light‑to‑moderate outdoor environments.
Engineered for consistent performance and clean installation, DIN 6921 Class 10.9 Non‑Serrated Hex Flange Screws with Zinc CR+3 are commonly used in machinery, equipment manufacturing, automotive assemblies, frames, brackets, and industrial installations. The integrated flange eliminates the need for a separate washer while maintaining stable load distribution and joint integrity. Available in a full range of metric diameters and lengths, these screws deliver dependable strength, corrosion protection, and precision manufacturing for OEM production, maintenance, and repair operations.
