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12364

ALL METAL LOCK NUT M/F 18MM X 1.5 E/G

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A lock nut is a specialized nut designed to resist loosening under vibration or torque. It typically incorporates a friction-based or mechanical locking feature, such as a nylon insert (in a nyloc nut), a deformed thread, or serrated flanges. Lock nuts maintain tightness and integrity even in dynamic or high-vibration environments without requiring additional locking components.