2 Conduit | McMaster-Carr

Clear All

	Conduit Trade Size Conduit Trade Size

	Type Type


Conduit	Adapter

Connector	Grommet

Bushing

	Material Material

	System of Measurement System of Measurement

Inch

	Thread Size Thread Size	Show

	Thread Size Thread Size	Hide

	Thread Type Thread Type

NPT

NPSM

	Shape Shape


Straight	90° Elbow

Offset Elbow

	Conduit Type Conduit Type

EMT

IMC

RMC

	Flexibility Flexibility

	Rigid

	Conduit Connection Type Conduit Connection Type


Threaded	Compression

Screw Clamp

	Connection Type Connection Type


Conduit	Electrical Box

	Length Length

14 1/4"

60"

10 ft.

	Gender Gender

Male

Female

	Finish Finish

Galvanized

Zinc Plated

	Specifications Met Specifications Met

ANSI/NEMA FB 1

CSA

	OD OD

2.36"

2.38"

	ID ID

2.08"

2.17"

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

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Knockout Connection Type Knockout Connection Type

Threaded

Flanged End

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	For Knockout Trade Size For Knockout Trade Size

	Conduit Texture Conduit Texture

Smooth

Forward

How can we improve?

37 Products

About Conduit

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

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure. NPT female × NPSM male straight adapters are also known as hubs. They have an insulated throat to protect wire and cable from abrasion when being pulled. Use in wet or dry locations.

NPSM male × flanged end male straight adapters are also known as conduit nipples, chase nipples, and box adapters. The flange installs through a knockout from inside an outlet box or enclosure. Use with a locknut (not included) to create a short raceway between boxes or enclosures.

Compression female × NPSM male straight adapters offer a reliable hold on conduit.

NPSM female × NPSM male 90° elbow adapters are for tight spaces where conduit can't be bent.

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

Straight Adapters—Threaded Conduit Connection × Threaded Electrical Box Connection

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Thread Size	Thread Type	Gender	Material	Includes	Specifications Met		Each
2	2	NPT	Female	2	NPSM	Male	Zinc	Locknut	UL Listed, C-UL Listed, CSA Certified	0000000	000000

Straight Adapters—Threaded Conduit Connection × Flanged End Electrical Box Connection

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	For Knockout Trade Size	Gender	Lg.	Material	Specifications Met		Each
2	2	NPSM	Male	2	Male	1"	Zinc	UL Listed, C-UL Listed, CSA Certified	0000000	00000

Straight Adapters—Compression Conduit Connection × Threaded Electrical Box Connection

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Thread Size	Thread Type	Gender	Material	Includes	Specifications Met		Each
2	Female	2	NPSM	Male	Zinc-Plated Steel	Locknut	UL Listed, CSA Certified	0000000	000000

90° Elbow Adapters—Threaded Conduit Connection × Threaded Electrical Box Connection

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Thread Size	Thread Type	Gender	Material	Specifications Met		Each
2	2	NPSM	Female	2	NPSM	Male	Iron	UL Listed, CSA Certified	0000000	0000000

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

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

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.

Offset elbow connectors join knockouts on outlet boxes or enclosures that do not align.

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

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
2	2	NPSM	Female	Galvanized Steel	__	UL Listed, C-UL Listed	0000000	00000
Connector with Glide Insert
2	2	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	00000

90° Elbow Connectors—Threaded Conduit Connection

With NPT Threads

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Lg.	Material	Specifications Met		Each
2	2	NPT	Male	14 1/4"	Galvanized Steel	UL Listed, C-UL Listed, CSA Certified	0000000	000000

Offset Elbow Connectors—Threaded Conduit or Electrical Box Connection

Conduit or Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Offset Lg.	Material	Specifications Met		Each
2	2	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	000000

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

Connect to the end of conduit or a fitting to protect wire and cable from abrasion when being pulled. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.

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

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material	Color	Specifications Met		Each
2	2	NPSM	Female	Polypropylene	Gray	UL Listed, CSA Certified, ANSI/NEMA FB 1	00000000	00000

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

Join two different sizes of threaded conduit. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.

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

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material	Specifications Met		Each
2 × 1/2	2 × 1/2	NPSM	Male × Female	Zinc-Plated Steel	UL Listed	0000000	000000
2 × 3/4	2 × 3/4	NPSM	Male × Female	Zinc-Plated Steel	UL Listed	0000000	00000
2 × 1	2 × 1	NPSM	Male × Female	Zinc-Plated Steel	UL Listed	0000000	00000
2 × 1 1/4	2 × 1 1/4	NPSM	Male × Female	Zinc-Plated Steel	UL Listed	0000000	00000
2 × 1 1/2	2 × 1 1/2	NPSM	Male × Female	Zinc-Plated Steel	UL Listed	0000000	00000

Medium-Wall (IMC) Steel Conduit

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

Conduit

Also known as intermediate metallic conduit (IMC), this conduit is lightweight and strong. A smooth coating protects wire and cable from abrasion when being pulled. This conduit has one threaded male end; the other end has a threaded female connector.

5-ft. lengths can be shipped via small-parcel carrier.

							5 ft. Lg.		10 ft. Lg.
Conduit Trade Size	ID	OD	Thread Size	Thread Type	Specifications Met	Material		Each		Each
2	2.17"	2.36"	2	NPT	UL Listed	Galvanized Steel	0000000	000000	0000000	0000000

Straight Adapters—Threaded Conduit Connection × Threaded Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

NPT female × NPSM male straight adapters are also known as hubs. They have an insulated throat to protect wire and cable from abrasion when being pulled. Use in wet or dry locations.

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Thread Size	Thread Type	Gender	Material	Includes		Each
2	2	NPT	Female	2	NPSM	Male	Zinc	Locknut	0000000	000000

Straight Adapters—Threaded Conduit Connection × Flanged End Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	For Knockout Trade Size	Gender	Lg.	Material		Each
2	2	NPSM	Male	2	Male	1"	Zinc	0000000	00000

Straight Adapters—Compression Conduit Connection × Threaded Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

Compression female × NPSM male straight adapters offer a reliable hold on conduit.

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Thread Size	Thread Type	Gender	Material	Includes		Each
2	Female	2	NPSM	Male	Zinc-Plated Steel	Locknut	0000000	000000

90° Elbow Adapters—Threaded Conduit Connection × Threaded Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

NPSM female × NPSM male 90° elbow adapters are for tight spaces where conduit can't be bent.

Conduit Connection				Electrical Box Connection Type
Conduit Trade Size	Thread Size	Thread Type	Gender	Thread Size	Thread Type	Gender	Material		Each
2	2	NPSM	Female	2	NPSM	Male	Iron	0000000	0000000

Straight Connectors—Compression Conduit Connection

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.

Conduit Connection
Conduit Trade Size	Gender	Material		Each
2	Female	Zinc-Plated Steel	0000000	000000

Straight Connectors—Screw-Clamp Conduit Connection

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

Screw-clamp ends tighten around conduit with screws.

Conduit Connection
Conduit Trade Size	Gender	Material	Specifications Met		Each
Connector
2	Female	Zinc-Plated Steel	UL Listed	00000000	000000

Straight Connectors—Threaded Conduit Connection

Connector

Connector with Glide Insert

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

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.

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material		Each
Connector
2	2	NPSM	Female	Galvanized Steel	0000000	00000
Connector with Glide Insert
2	2	NPT	Female	Zinc-Plated Iron	0000000	00000

90° Elbow Connectors—Threaded Conduit Connection

With NPT Threads

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

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Lg.	Material		Each
2	2	NPT	Male	14 1/4"	Galvanized Steel	0000000	000000

Offset Elbow Connectors—Threaded Conduit or Electrical Box Connection

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

Offset elbow connectors join knockouts on outlet boxes or enclosures that do not align.

Conduit or Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Offset Lg.	Material		Each
2	2	NPSM	Male	3/4"	Zinc	0000000	000000

Grommets

Connect to the end of conduit or a fitting to protect wire and cable from abrasion when being pulled. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material	Color		Each
2	2	NPSM	Female	Polypropylene	Gray	00000000	00000

Bushings

Join two different sizes of threaded conduit. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material		Each
2 × 1/2	2 × 1/2	NPSM	Male × Female	Zinc-Plated Steel	0000000	000000
2 × 3/4	2 × 3/4	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000
2 × 1	2 × 1	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000
2 × 1 1/4	2 × 1 1/4	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000
2 × 1 1/2	2 × 1 1/2	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000

Grounding Clamps

Grounding Clamp With Hinge

Ground conduit by running a ground wire through the attached lug. The included grommet protects wire and cable from abrasion when being pulled. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.

Grounding clamps with hinge open for quick installation around conduit and secure with a screw.

Grounding Clamp with Hinge
Conduit Trade Size	Gender	Material	Compatible With		Each
2	Female	Zinc	Aluminum Wire, Copper Wire	00000000	000000

Reducing Washers

Reduce the knockout size in an outlet box or enclosure so you can attach a different size of medium-wall (IMC) and thick-wall (rigid) steel conduit to it. Two reducing washers are required per knockout.

Conduit Trade Size	Material	Pkg. Qty.		Pkg.
2 × 1/2	Steel	10	00000000	00000
2 × 3/4	Steel	10	00000000	0000
2 × 1	Steel	10	00000000	0000
2 × 1 1/4	Steel	10	00000000	0000
2 × 1 1/2	Steel	10	00000000	0000

Raintight Reducing Washers

Seal out moisture while reducing a knockout size in an outlet box or enclosure. Each includes a washer and a rubber-coated steel gasket.

Conduit Trade Size	Material		Each
2 × 1/2	Steel	00000000	000000

Thick-Wall (Rigid) Steel Conduit

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

Conduit

This impact- and crush-resistant conduit is also known as galvanized rigid conduit (GRC). It has one threaded male end; the other end has a threaded female connector.

5-ft. lengths can be shipped via small-parcel carrier.

							5 ft. Lg.		10 ft. Lg.
Conduit Trade Size	ID	OD	Thread Size	Thread Type	Specifications Met	Material		Each		Each
2	2.08"	2.38"	2	NPT	UL Listed	Galvanized Steel	0000000	0000000	0000000	0000000

Straight Adapters—Threaded Conduit Connection × Threaded Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

NPT female × NPSM male straight adapters are also known as hubs. They have an insulated throat to protect wire and cable from abrasion when being pulled. Use in wet or dry locations.

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Thread Size	Thread Type	Gender	Material	Includes		Each
2	2	NPT	Female	2	NPSM	Male	Zinc	Locknut	0000000	000000

Straight Adapters—Threaded Conduit Connection × Flanged End Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	For Knockout Trade Size	Gender	Lg.	Material		Each
2	2	NPSM	Male	2	Male	1"	Zinc	0000000	00000

Straight Adapters—Compression Conduit Connection × Threaded Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

Compression female × NPSM male straight adapters offer a reliable hold on conduit.

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Thread Size	Thread Type	Gender	Material	Includes		Each
2	Female	2	NPSM	Male	Zinc-Plated Steel	Locknut	0000000	000000

90° Elbow Adapters—Threaded Conduit Connection × Threaded Electrical Box Connection

Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.

NPSM female × NPSM male 90° elbow adapters are for tight spaces where conduit can't be bent.

Conduit Connection				Electrical Box Connection Type
Conduit Trade Size	Thread Size	Thread Type	Gender	Thread Size	Thread Type	Gender	Material		Each
2	2	NPSM	Female	2	NPSM	Male	Iron	0000000	0000000

Straight Connectors—Compression Conduit Connection

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.

Conduit Connection
Conduit Trade Size	Gender	Material		Each
2	Female	Zinc-Plated Steel	0000000	000000

Straight Connectors—Screw-Clamp Conduit Connection

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

Screw-clamp ends tighten around conduit with screws.

Conduit Connection
Conduit Trade Size	Gender	Material	Specifications Met		Each
Connector
2	Female	Zinc-Plated Steel	UL Listed	00000000	000000

Straight Connectors—Threaded Conduit Connection

Connector

Connector with Glide Insert

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

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.

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material		Each
Connector
2	2	NPSM	Female	Galvanized Steel	0000000	00000
Connector with Glide Insert
2	2	NPT	Female	Zinc-Plated Iron	0000000	00000

90° Elbow Connectors—Threaded Conduit Connection

With NPT Threads

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

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Lg.	Material		Each
2	2	NPT	Male	14 1/4"	Galvanized Steel	0000000	000000

Offset Elbow Connectors—Threaded Conduit or Electrical Box Connection

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

Offset elbow connectors join knockouts on outlet boxes or enclosures that do not align.

Conduit or Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Offset Lg.	Material		Each
2	2	NPSM	Male	3/4"	Zinc	0000000	000000

Grommets

Connect to the end of conduit or a fitting to protect wire and cable from abrasion when being pulled. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material	Color		Each
2	2	NPSM	Female	Polypropylene	Gray	00000000	00000

Bushings

Join two different sizes of threaded conduit. Use with medium-wall (IMC) and thick-wall (rigid) steel conduit.

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material		Each
2 × 1/2	2 × 1/2	NPSM	Male × Female	Zinc-Plated Steel	0000000	000000
2 × 3/4	2 × 3/4	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000
2 × 1	2 × 1	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000
2 × 1 1/4	2 × 1 1/4	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000
2 × 1 1/2	2 × 1 1/2	NPSM	Male × Female	Zinc-Plated Steel	0000000	00000

Grounding Clamps

Grounding Clamp With Hinge

Grounding clamps with hinge open for quick installation around conduit and secure with a screw.

Grounding Clamp with Hinge
Conduit Trade Size	Gender	Material	Compatible With		Each
2	Female	Zinc	Aluminum Wire, Copper Wire	00000000	000000

Reducing Washers

Conduit Trade Size	Material	Pkg. Qty.		Pkg.
2 × 1/2	Steel	10	00000000	00000
2 × 3/4	Steel	10	00000000	0000
2 × 1	Steel	10	00000000	0000
2 × 1 1/4	Steel	10	00000000	0000
2 × 1 1/2	Steel	10	00000000	0000

Raintight Reducing Washers

Seal out moisture while reducing a knockout size in an outlet box or enclosure. Each includes a washer and a rubber-coated steel gasket.

Conduit Trade Size	Material		Each
2 × 1/2	Steel	00000000	000000

Adapters for Thin-Wall (EMT) Steel Conduit

Use these adapters to attach thin-wall (EMT) steel conduit to a knockout in an outlet box or enclosure. A compression end offers a more reliable hold on conduit than a screw-clamp end. It pushes onto the conduit; tighten the compression ring to secure. The screw-clamp end tightens around conduit with a screw.

Adapters with grommet protect wire and cable from abrasion when being pulled.

Adapters with O-ring prevent liquid from entering the conduit. They meet UL raintight standards when used with EMT conduit.

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

Straight Adapters—Zinc

Compression

Screw-Clamp

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Thread Size	Thread Type	Gender	Includes	Specifications Met		Each
Compression Conduit Connection × Threaded Electrical Box Connection
2	Female	2	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	000000
2	Female	2	NPSM	Male	Grommet, Locknut, O-Ring	UL Listed	0000000	00000
2	Female	2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
2	Female	2	NPSM	Male	Locknut, O-Ring	UL Listed	0000000	00000
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
2	Female	2	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	00000
2	Female	2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000

Straight Adapters—Steel

Compression

Screw-Clamp

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Thread Size	Thread Type	Gender	Includes	Specifications Met		Each
Compression Conduit Connection × Threaded Electrical Box Connection
2	Female	2	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	000000
2	Female	2	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	00000
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
2	Female	2	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	00000
2	Female	2	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	00000