The NESCO SCP-40 is a 4" steel set screw coupling built for professional electricians and contractors who demand reliable, code-compliant connections on every job. Designed for use with EMT (Electrical Metallic Tubing) rigid conduit systems, this coupling delivers a mechanically secure joint using hardened set screws — no threading required. Whether you're running conduit through commercial builds, industrial facilities, or residential service upgrades, the SCP-40 keeps your runs tight, aligned, and inspection-ready. Its durable steel construction and silver finish stand up to the demands of daily job-site use.

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