Squeeze Connectors | McMaster-Carr

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Conduit Trade Size

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2B999

EAR99

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91 Products

About Conduit

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. 316 stainless steel adapters are the most corrosion resistant.

Straight Adapters—Zinc

Screw-Clamp × Threaded

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

Straight Adapters—Iron

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe 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	0000
1 1/2	Female	1 1/2	NPT	Male	UL Listed	0000000	00000
2	Female	2	NPT	Male	UL Listed	0000000	00000

Straight Adapters—316 Stainless Steel

Screw-Clamp × Threaded

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	1/2	NPSM	Male	0000000	000000
1/2	Female	1/2	NPSM	Male	0000000	00000
3/4	Female	3/4	NPSM	Male	0000000	00000
1	Female	1	NPSM	Male	0000000	00000
1 1/4	Female	1 1/4	NPSM	Male	0000000	00000

90° Elbow Adapters—Zinc

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

90° Elbow Adapters—Iron

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe 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

90° Elbow Adapters—316 Stainless Steel

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	1/2	NPSM	Male	0000000	000000
1/2	Female	1/2	NPSM	Male	0000000	00000
3/4	Female	3/4	NPSM	Male	0000000	00000
1	Female	1	NPSM	Male	0000000	00000
1 1/4	Female	1 1/4	NPSM	Male	0000000	00000

Adapters for Flexible Metal Conduit and Armored Cable

Attach flexible metal conduit and types AC and MC armored cable to a knockout in an outlet box or enclosure. Wye adapters join two pieces of conduit or armored cable to one knockout. The snap-in end has tabs that snap into the knockout without locknuts or tools.

The screw-clamp end tightens around conduit with a screw.

Straight Adapters—Zinc

Screw-Clamp × Snap-In

Screw-Clamp
× Threaded—
With Two Screws

Screw-Clamp × Threaded

Conduit Connection		For Armored Cable		Electrical Box Connection
Conduit Trade Size	Gender	OD	Type	Pipe Size	Thread Type	For Knockout Trade Size	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Snap-In Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	00000
1/2	Female	0.71"-0.91"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	0000
3/4	Female	0.84"-1.11"	AC, MC	__	__	3/4	Male	__	UL Listed, CSA Certified	0000000	0000
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	1/2	NPSM	__	Male	Locknut, Two Screws	UL Listed, CSA Certified	0000000	0000
3/8	Female	0.56"-0.61"	AC, MC	1/2	NPSM	__	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1/2	Female	0.86"-0.92"	AC	1/2	NPSM	__	Male	Locknut	UL Listed, CSA Certified	0000000	0000

90° Elbow Adapters—Zinc

Conduit Connection		For Armored Cable		Electrical Box Connection
Conduit Trade Size	Gender	OD	Type	Pipe Size	Thread Type	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	0.45"-0.62"	MC	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
1/2	Female	0.75"-0.87"	MC	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
3/4	Female	0.87"-1"	MC	3/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1.18"-1.31"	MC	1	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000
1 1/4	Female	1.5"-1.62"	MC	1 1/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	00000

Wye Adapters—Zinc

Screw-Clamp × Snap-In

Screw-Clamp × Threaded

Conduit Connection		For Armored Cable		Electrical Box Connection
Conduit Trade Size	Gender	OD	Type	Pipe Size	Thread Type	For Knockout Trade Size	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Snap-In Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	__	__	1/2	Male	__	UL Listed, CSA Certified	0000000	00000
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
3/8	Female	0.44"-0.61"	AC, MC	1/2	NPSM	__	Male	Locknut	UL Listed, CSA Certified	0000000	0000

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. The screw-clamp end tightens around conduit with a screw.

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

Straight Adapters—Zinc

Screw-Clamp

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
1/2	Female	1/2	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	00000
1/2	Female	1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	000
3/4	Female	3/4	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	0000
3/4	Female	3/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1 1/4	Female	1 1/4	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	0000
1 1/4	Female	1 1/4	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
1 1/2	Female	1 1/2	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	0000
1 1/2	Female	1 1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
2	Female	2	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	0000000	0000
2	Female	2	NPSM	Male	Locknut	UL Listed, CSA Certified	0000000	0000
2 1/2	Female	2 1/2	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	00000000	00000
2 1/2	Female	2 1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	00000000	00000
3	Female	3	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	00000000	00000
3	Female	3	NPSM	Male	Locknut	UL Listed, CSA Certified	00000000	00000
4	Female	4	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	00000000	00000
4	Female	4	NPSM	Male	Locknut	UL Listed, CSA Certified	00000000	00000

Straight Adapters—Steel

Screw-Clamp

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
1/2	Female	1/2	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	00000
1/2	Female	1/2	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	000
3/4	Female	3/4	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	0000
3/4	Female	3/4	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	000
1	Female	1	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	0000
1	Female	1	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	0000
1 1/4	Female	1 1/4	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	0000
1 1/4	Female	1 1/4	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	0000
1 1/2	Female	1 1/2	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	0000
1 1/2	Female	1 1/2	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	0000
2	Female	2	NPSM	Male	Grommet, Locknut	UL Listed, C-UL Listed	0000000	0000
2	Female	2	NPSM	Male	Locknut	UL Listed, C-UL Listed	0000000	00000
2 1/2	Female	2 1/2	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	00000000	00000
2 1/2	Female	2 1/2	NPSM	Male	Locknut	UL Listed, CSA Certified	00000000	00000
3	Female	3	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	00000000	00000
3	Female	3	NPSM	Male	Locknut	UL Listed, CSA Certified	00000000	00000
4	Female	4	NPSM	Male	Grommet, Locknut	UL Listed, CSA Certified	00000000	00000
4	Female	4	NPSM	Male	Locknut	UL Listed, CSA Certified	00000000	00000

Offset Elbow Adapters—Zinc

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Offset Lg.	Includes	Specifications Met		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
1/2	Female	1/2	NPSM	Male	3/8"	Locknut	UL Listed, CSA Certified	0000000	00000
3/4	Female	3/4	NPSM	Male	3/4"	Locknut	UL Listed, CSA Certified	0000000	0000
1	Female	1	NPSM	Male	1"	Locknut	UL Listed	0000000	00000

Adapters for Thin-Wall (EMT) Stainless Steel Conduit

Screw-Clamp
Conduit × Threaded
Electrical Box Adapter

Attach thin-wall (EMT) stainless steel conduit to a knockout in an outlet box or enclosure. All of these adapters are corrosion resistant, so you can use them in food-processing and chemical plants.

The screw-clamp end tightens around conduit with a screw.

Conduit Connection		Electrical Box Connection
Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Material		Each
Screw-Clamp Conduit Connection × Threaded Electrical Box Connection
1/2	Female	1/2	NPT	Male	316 Stainless Steel	0000000	000000
3/4	Female	3/4	NPT	Male	316 Stainless Steel	0000000	00000
1	Female	1	NPT	Male	316 Stainless Steel	0000000	00000
2	Female	2	NPT	Male	316 Stainless Steel	0000000	000000

Adapters for Choose-a-Color Thin-Wall (EMT) Steel Conduit

Use these adapters to attach choose-a-color thin-wall (EMT) steel conduit to a knockout in an outlet box or enclosure. The screw-clamp end tightens around conduit with a screw.

Conduit Connection			Electrical Box Connection
Conduit Trade Size	Conduit Connection Type	Gender	Pipe Size	Thread Type	Gender	Material	Specifications Met	Choose a Color		Each
1/2	Screw-Clamp	Female	1/2	NPSM	Male	Steel	UL Listed	Blue, Red	0000000	00000
3/4	Screw-Clamp	Female	3/4	NPSM	Male	Steel	UL Listed	Black, Blue, Red, White	0000000	0000
1	Screw-Clamp	Female	1	NPSM	Male	Steel	UL Listed	Blue, Red	0000000	0000