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Metric Class 10 Hex Flange Metal Top Locknut, DIN 6927/DIN En 1664, Zinc CR+3
Our Metric Class 10 Hex Flange Metal Top Locknuts manufactured to DIN 6927 / DIN EN 1664 with Zinc CR+3 plating are high‑strength, all‑metal locking fasteners designed for demanding applications where vibration resistance and clamp load reliability are critical. Produced from carbon steel and heat‑treated to property class 10, these locknuts provide superior strength and durability for heavy‑duty mechanical and structural assemblies.
The metal top‑lock prevailing torque design uses controlled thread deformation at the top of the nut to create a secure mechanical locking action without nylon inserts, ensuring consistent performance under vibration, shock, and dynamic loads. The integrated hex flange distributes load evenly across the mating surface and eliminates the need for a separate washer. Finished with Zinc CR+3 (trivalent chromium) plating, these locknuts offer corrosion resistance suitable for indoor and light‑to‑moderate outdoor environments while meeting current environmental compliance standards.
Engineered for strength and installation efficiency, DIN 6927 / DIN EN 1664 Class 10 Zinc CR+3 Hex Flange Metal Top Locknuts are commonly used in automotive assemblies, machinery, equipment manufacturing, structural components, and industrial maintenance applications. The all‑metal locking feature maintains effectiveness in elevated temperatures where nylon insert locknuts may not be suitable, while the flange design simplifies assembly and improves load distribution. Available in a full range of metric thread sizes, these locknuts deliver dependable, repeatable locking performance for OEM production, repair, and heavy‑duty service environments.
