Secure vibration-prone joints with our serrated hex flange nut DIN 6923. Made from durable A2 stainless steel, this one-piece nut combines a wide washer flange with built-in serrations that bite into the mating surface for reliable locking, even under vibration and dynamic loads. No separate washers required, speeding assembly and reducing parts. Ideal for automotive, machinery, construction, and outdoor projects (not marine/saltwater). Available in M4, M5, M6, M8, M10 and M12 with metric coarse threads. Tighten until serrations contact the surface for effective lock.
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