The NNC516 Nylon Insert Lock Nut is a durable 5/16"-18 NC locking nut engineered for secure fastening in mechanical, automotive, and industrial applications. Its integrated nylon insert prevents loosening from vibration and torque, helping maintain a tight, dependable connection over time. Manufactured from high-strength, corrosion-resistant steel, this lock nut is built to perform in demanding environments—proof that even smaller fasteners can deliver serious holding power.
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Key Features / Specifications
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