Steel Conduit Couplings | McMaster-Carr

	Conduit Trade Size Conduit Trade Size

1/2

3/4

1 1/4

1 1/2

2 1/2

	Material Material

Steel

Iron

	Finish Finish

Zinc Plated

Galvanized

	Conduit Type Conduit Type

IMC

RMC

EMT

	Conduit Connection Type Conduit Connection Type


Threaded	Compression

Screw Clamp

	Thread Size Thread Size

	Thread Type Thread Type

NPSM

NPT

	Specifications Met Specifications Met

CSA

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

View catalog pages (4)

Forward

How can we improve?

36 Products

About Conduit

Connectors for Medium-Wall (IMC) and Thick-Wall (Rigid) Steel Conduit

Join pieces of medium-wall (IMC) and thick-wall (rigid) conduit.

Compression female straight connectors join two pieces of unthreaded conduit. Push the conduit into the ends; tighten the compression rings to secure.

NPT female straight connectors with glide insert have three pieces. The two outer pieces turn independently so you don't need to rotate the conduit.

For technical drawings and 3-D models, click on a part number.

Straight Connectors—Compression Conduit Connection

Conduit Connection
Conduit Trade Size	Conduit Connection Type	Gender	Material	Specifications Met		Each
1/2	Compression	Female	Zinc-Plated Steel	UL Listed, CSA Certified	0000000	00000
3/4	Compression	Female	Zinc-Plated Steel	UL Listed, CSA Certified	0000000	00000
1	Compression	Female	Zinc-Plated Steel	UL Listed, CSA Certified	0000000	00000
1 1/4	Compression	Female	Zinc-Plated Steel	UL Listed, CSA Certified	0000000	00000
1 1/2	Compression	Female	Zinc-Plated Steel	UL Listed, CSA Certified	0000000	00000
2	Compression	Female	Zinc-Plated Steel	UL Listed, CSA Certified	0000000	00000

Straight Connectors—Threaded Conduit Connection

Connector

Connector with Glide Insert

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material	Features	Specifications Met		Each
Connector
1/2	1/2	NPSM	Female	Galvanized Steel	__	UL Listed, C-UL Listed	0000000	00000
3/4	3/4	NPSM	Female	Galvanized Steel	__	UL Listed, C-UL Listed	0000000	0000
1	1	NPSM	Female	Galvanized Steel	__	UL Listed, C-UL Listed	0000000	0000
1 1/4	1 1/4	NPSM	Female	Galvanized Steel	__	UL Listed, C-UL Listed	0000000	0000
1 1/2	1 1/2	NPSM	Female	Galvanized Steel	__	UL Listed, C-UL Listed	0000000	0000
2	2	NPSM	Female	Galvanized Steel	__	UL Listed, C-UL Listed	0000000	0000
Connector with Glide Insert
1/2	1/2	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	0000
3/4	3/4	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	0000
1	1	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	00000
1 1/4	1 1/4	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	00000
1 1/2	1 1/2	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	00000
2	2	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	00000

Connectors for Thin-Wall (EMT) Steel Conduit

Join pieces of thin-wall (EMT) steel conduit. Compression ends offer a more reliable hold than screw-clamp or push-in ends. Tighten the compression ring to secure. Screw-clamp ends tighten around conduit with screws.

For technical drawings and 3-D models, click on a part number.

Straight Connectors—Steel

Compression

Screw-Clamp

Conduit Connection
Conduit Trade Size	Gender	Specifications Met		Each
Compression Conduit Connection
1/2	Female	UL Listed, C-UL Listed	0000000	00000
3/4	Female	UL Listed, C-UL Listed	0000000	0000
1	Female	UL Listed, C-UL Listed	0000000	0000
1 1/4	Female	UL Listed, C-UL Listed	0000000	00000
1 1/2	Female	UL Listed, C-UL Listed	0000000	00000
2	Female	UL Listed, C-UL Listed	0000000	00000
2 1/2	Female	UL Listed, C-UL Listed	00000000	00000
3	Female	UL Listed, C-UL Listed	00000000	00000
4	Female	UL Listed, C-UL Listed	00000000	00000
Screw-Clamp Conduit Connection
1/2	Female	UL Listed, C-UL Listed	0000000	0000
3/4	Female	UL Listed, C-UL Listed	0000000	0000
1	Female	UL Listed, C-UL Listed	0000000	0000
1 1/4	Female	UL Listed, C-UL Listed	0000000	0000
1 1/2	Female	UL Listed, C-UL Listed	0000000	00000
2	Female	UL Listed, C-UL Listed	0000000	00000
2 1/2	Female	UL Listed, CSA Certified	00000000	00000
3	Female	UL Listed, CSA Certified	00000000	00000
4	Female	UL Listed, CSA Certified	00000000	00000