Iron Hose | McMaster-Carr

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	Conduit Trade Size Conduit Trade Size

3/8

1/2

3/4

1 1/4

1 1/2

	Shape Shape


Straight	90° Elbow

Tee	45° Elbow

	Conduit Type Conduit Type

	Type Type


Adapter	Connector

	Flexibility Flexibility

	Thread Size Thread Size

	Thread Type Thread Type

NPSM

NPT

	Material Material	Show

Iron

	Material Material	Hide

	Conduit Connection Type Conduit Connection Type


Twist In	Threaded

Screw Clamp

	Connection Type Connection Type


Conduit	Electrical Box

	Gender Gender


Male	Female

	Specifications Met Specifications Met

CSA

	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

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

REACH Compliant

	Environment Environment

Washdown

	Finish Finish

Zinc Plated

	Industry Designation Industry Designation

	For Conduit Material For Conduit Material

Metal

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98 Products

About Conduit

Fittings for Liquid-Tight Flexible Metal Conduit

When used to connect liquid-tight flexible metal conduit to a knockout in an outlet box or enclosure, these fittings seal out liquids. Attach the twist-in end to conduit with a few quick turns.

Adapters with grounding lug ground conduit outside an outlet box or enclosure. Run a ground wire through the lug. Adapters with a wire-mesh grip provide strain relief and added protection against conduit pullout.These fittings seal out liquids when connecting liquid-tight flexible metal conduit to a knockout in an outlet box or enclosure.

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

Straight Adapters

Adapter with
Grounding
Lug and Locknut

Conduit Connection			Electrical Box Connection
Conduit Trade Size	Conduit Connection Type	Gender	Thread Size	Thread Type	Gender	Specifications Met		Each
Adapters with Grounding Lug and Locknut—Iron
1 1/4	Twist-In	Female	1 1/4	NPT	Male	UL Listed, CSA Certified	0000000	000000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	UL Listed, CSA Certified	0000000	00000
2	Twist-In	Female	2	NPT	Male	UL Listed, CSA Certified	0000000	00000

45° Elbow Adapters

Adapter with Locknut

Adapter with Grounding Lug and Locknut

Adapter with Wire-Mesh Grip and Locknut

Conduit Connection			Electrical Box Connection
Conduit Trade Size	Conduit Connection Type	Gender	Thread Size	Thread Type	Gender	Features	Specifications Met		Each
Adapters with Locknut—Zinc-Plated Iron
3/8	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1/2	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	0000
3/4	Twist-In	Female	3/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1	Twist-In	Female	1	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/4	Twist-In	Female	1 1/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
2	Twist-In	Female	2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
Adapters with Locknut—Iron
3/8	Twist-In	Female	1/2	NPSM	Male	__	UL Listed, C-UL Listed	0000000	0000
1/2	Twist-In	Female	1/2	NPSM	Male	__	UL Listed, C-UL Listed	0000000	0000
3/4	Twist-In	Female	3/4	NPSM	Male	__	UL Listed, C-UL Listed	0000000	0000
1	Twist-In	Female	1	NPSM	Male	__	UL Listed, C-UL Listed	0000000	00000
1 1/4	Twist-In	Female	1 1/4	NPSM	Male	__	UL Listed, C-UL Listed	0000000	00000
1 1/2	Twist-In	Female	1 1/2	NPSM	Male	__	UL Listed, C-UL Listed	0000000	00000
2	Twist-In	Female	2	NPSM	Male	__	UL Listed, C-UL Listed	0000000	00000
Adapters with Grounding Lug and Locknut—Iron
3/8	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1/2	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
3/4	Twist-In	Female	3/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1	Twist-In	Female	1	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/4	Twist-In	Female	1 1/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
2	Twist-In	Female	2	NPT	Male	__	UL Listed, CSA Certified	0000000	000000
Adapters with Wire-Mesh Grip and Locknut—Iron
3/8	Twist-In	Female	1/2	NPT	Male	6" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	00000
1/2	Twist-In	Female	1/2	NPT	Male	5 1/4" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	00000
3/4	Twist-In	Female	3/4	NPT	Male	6 1/2" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	00000
1	Twist-In	Female	1	NPT	Male	7 3/4" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000
1 1/4	Twist-In	Female	1 1/4	NPT	Male	10 5/8" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	11" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000
2	Twist-In	Female	2	NPT	Male	14" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000

90° Elbow Adapters

Adapter with Locknut

Adapter with Grounding Lug and Locknut

Adapter with Wire-Mesh Grip and Locknut

Conduit Connection			Electrical Box Connection
Conduit Trade Size	Conduit Connection Type	Gender	Thread Size	Thread Type	Gender	Features	Specifications Met		Each
Adapters with Locknut—Zinc-Plated Iron
3/8	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1/2	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	0000
3/4	Twist-In	Female	3/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1	Twist-In	Female	1	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/4	Twist-In	Female	1 1/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
2	Twist-In	Female	2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
Adapters with Grounding Lug and Locknut—Iron
3/8	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1/2	Twist-In	Female	1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
3/4	Twist-In	Female	3/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1	Twist-In	Female	1	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/4	Twist-In	Female	1 1/4	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
2	Twist-In	Female	2	NPT	Male	__	UL Listed, CSA Certified	0000000	00000
Adapters with Wire-Mesh Grip and Locknut—Iron
3/8	Twist-In	Female	1/2	NPT	Male	6" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	00000
1/2	Twist-In	Female	1/2	NPT	Male	5 1/4" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	00000
3/4	Twist-In	Female	3/4	NPT	Male	6 1/2" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	00000
1	Twist-In	Female	1	NPT	Male	7 3/4" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000
1 1/4	Twist-In	Female	1 1/4	NPT	Male	10 5/8" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000
1 1/2	Twist-In	Female	1 1/2	NPT	Male	11" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000
2	Twist-In	Female	2	NPT	Male	14" lg. Stainless Steel Wire-Mesh Grip	UL Listed, CSA Certified	00000000	000000

Adapters for Flexible Metal Conduit

Attach flexible metal conduit to a knockout in an outlet box or enclosure. The screw-clamp end tightens around conduit with a screw. Iron adapters are stronger and more durable than zinc adapters.

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

Straight Adapters—Iron

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Thread Size	Thread Type	Gender	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	1/2	NPSM	Male	UL Listed	0000000	00000
1/2	Female	1/2	NPSM	Male	UL Listed	0000000	0000
3/4	Female	3/4	NPSM	Male	UL Listed	0000000	0000
1	Female	1	NPT	Male	UL Listed	0000000	0000
1 1/4	Female	1 1/4	NPT	Male	UL Listed	0000000	00000
1 1/2	Female	1 1/2	NPT	Male	UL Listed	0000000	00000
2	Female	2	NPT	Male	UL Listed	0000000	00000

90° Elbow Adapters—Iron

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Thread Size	Thread Type	Gender	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	1/2	NPSM	Male	UL Listed	0000000	00000
1/2	Female	1/2	NPSM	Male	UL Listed	0000000	0000
3/4	Female	3/4	NPSM	Male	UL Listed	0000000	0000
1	Female	1	NPSM	Male	UL Listed	0000000	00000
1 1/4	Female	1 1/4	NPSM	Male	UL Listed	0000000	00000
1 1/2	Female	1 1/2	NPSM	Male	UL Listed	0000000	00000
2	Female	2	NPSM	Male	UL Listed	0000000	00000

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.

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.

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
1/2	1/2	NPSM	Female	1/2	NPSM	Male	Iron	UL Listed	0000000	00000
3/4	3/4	NPSM	Female	3/4	NPSM	Male	Iron	UL Listed	0000000	0000
1	1	NPSM	Female	1	NPSM	Male	Iron	UL Listed, CSA Certified	0000000	00000
1 1/4	1 1/4	NPSM	Female	1 1/4	NPSM	Male	Iron	UL Listed, CSA Certified	0000000	00000
1 1/2	1 1/2	NPSM	Female	1 1/2	NPSM	Male	Iron	UL Listed, CSA Certified	0000000	000000
2	2	NPSM	Female	2	NPSM	Male	Iron	UL Listed, CSA Certified	0000000	000000

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.

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

Straight Connectors—Threaded Conduit Connection

Connector with Glide Insert

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Material	Features	Specifications Met		Each
Connector with Glide Insert
1/2	1/2	NPT	Female	Zinc-Plated Iron	Glide Insert	UL Listed	0000000	00000
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

Access Ports for Metal Conduit

Also known as conduit bodies, these ports provide access to wire and cable inside conduit for pulling, splicing, and maintenance. They are also used to change the direction of a run. Connect to medium-wall (IMC) and thick-wall (rigid) metal conduit.

All are corrosion resistant. 316 stainless steel ports offer the best corrosion resistance.

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

Straight (C)

Zinc-Plated Iron
Conduit Trade Size	Thread Size	Thread Type	Gender	Features	Specifications Met		Each
1/2	1/2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	000000
3/4	3/4	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1	1	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1 1/4	1 1/4	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1 1/2	1 1/2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
2	2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	000000

Tee (T)

Zinc-Plated Iron
Conduit Trade Size	Thread Size	Thread Type	Gender	Features	Specifications Met		Each
1/2	1/2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	000000
3/4	3/4	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1	1	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1 1/4	1 1/4	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1 1/2	1 1/2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
2	2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	000000

90° Elbow (LB)

Zinc-Plated Iron
Conduit Trade Size	Thread Size	Thread Type	Gender	Features	Specifications Met		Each
1/2	1/2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	000000
3/4	3/4	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1	1	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1 1/4	1 1/4	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
1 1/2	1 1/2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	00000
2	2	NPT	Female	Removable Cover with Rubber Gasket	UL Listed, CSA Certified	0000000	000000

Conduit Adapters

Threaded × Twist-In

Transition between types of metal conduit. The twist-in end attaches to conduit with a few quick turns.

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

Conduit Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	For Conduit Flexibility	Material	Specifications Met		Each
For RMC × LFMC
Threaded × Twist-In
3/4 × 3/4	3/4	NPSM	Female × Male	Rigid × Flexible	Iron	UL Listed	0000000	000000
1 × 1	1	NPSM	Female × Male	Rigid × Flexible	Iron	UL Listed	0000000	00000