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Couplings for Heavy-Wall RMC & Medium-Wall IMC Metal Conduit

Available87 products

Couplings join sections of heavy-wall RMC and medium-wall IMC metal conduit together.

Compression Couplings

Compression Couplings
Compression couplings are commonly used outdoors when a concrete-tight fitting is needed. They position onto the ends of two lengths of conduit and have a gland that tightens with a wrench to lock in place.

Zinc Plated Steel

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Zinc Plated Iron; Steel

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Polished 316 Stainless Steel

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Set Screw Couplings

Set Screw Couplings
Set screw couplings are used on unthreaded RMC and IMC conduit when joining two cut ends. They position onto the ends of the conduit and lock with the set screw to join them together.

Zinc Plated Steel

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Expansion Set Screw Couplings

Expansion Set Screw Couplings
These couplings have a piston that extends and retracts to compensate for length changes of unthreaded RMC and IMC conduit. They’re often used where there are large fluctuations in temperature, which can cause conduit to expand and contract. These couplings position onto the ends of two lengths of conduit and lock with the set screw to join them together.

Zinc Plated Steel

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Threaded Couplings

Threaded Couplings

Threaded couplings are the standard coupling of choice for connecting two or more pieces of threaded RMC or IMC conduit. They join the ends of the conduit together by threading onto each piece. They can also bond threaded conduit to electrical junction boxes and enclosures or convert runs to thin-wall EMT metal conduit or liquid-tight conduit when paired with chase nipples and connectors.

Steel

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316 Stainless Steel

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Aluminum

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Three-Piece Threaded Couplings

Three-Piece Threaded Couplings
Three-piece couplings include an outer hex ring, threaded ferrule, and hexagonal threaded nipple. These couplings join two pieces of threaded RMC or IMC conduit that are fixed in place and can’t be rotated. They’re often used when a section of conduit has already been installed but requires additional length. The nipple screws onto one piece of conduit. The hex ring and ferrule are placed on the other piece. Once all the pieces are in place, the hex ring slides up and tightens to join the two pieces together.

Zinc Plated Iron

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Plain Iron

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Polished 316 Stainless Steel

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Self-Aligning Three-Piece Threaded Couplings

Self-Aligning Three-Piece Threaded Couplings

Self-aligning threaded couplings compensate for minor misalignment when connecting two lengths of conduit. These three-piece couplings include an outer hex ring, threaded ferrule, and hexagonal threaded nipple. They join two pieces of threaded RMC or IMC conduit that are fixed in place and can’t be rotated. They’re often used when a section of conduit has already been installed but requires additional length. The nipple screws onto one piece of conduit. The hex ring and ferrule are placed on the other piece. Once all the pieces are in place, the hex ring slides up and tightens to join the two pieces together.

Zinc Plated Iron

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.