The NESCO 3" Rigid Conduit Locknut (Model LK-30) is built for professional electricians and contractors who need a reliable, code-compliant mechanical connection in threaded rigid conduit systems. Whether you're roughing in a commercial panel room, securing conduit runs in an industrial facility, or completing a heavy-duty retrofit, this locknut delivers the secure, vibration-resistant fastening that demanding job sites require. Its silver-finish steel construction ensures durability in exposed conduit applications, and the 3" trade size fits standard rigid conduit without modification.

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