The NESCO ¾" Aluminum Locknut is a high-frequency fitting for electricians securing conduit connectors at knockout openings in panels, junction boxes, and steel or aluminum enclosures on residential, commercial, and industrial job sites. Its lightweight, corrosion-resistant aluminum construction provides a firm mechanical connection and reliable electrical bonding that holds up in everyday electrical work. It seats flush and threads on fast for a clean, code-compliant installation.

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