Squeeze Connectors | McMaster-Carr

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Conduit Trade Size

Shape

Fitting Connection

Connects To

Material

Fitting Type

Conduit Type

Pipe Size

For Conduit Flexibility

Flexibility

Length

Gender

Knockout Connection

Thread Type

Knockout Trade Size

Environment

For Armored Cable OD

Certification

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Performance

Highly Corrosion Resistant

REACH

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Color

Armored Cable Type

137 Products

About Conduit

Compare rigid and flexible conduit materials and identify the trade size for compatible fittings.

Flexible Metal (FMC) Conduit and Fittings

Make tight bends and protect wiring from being crushed. This corrugated conduit snakes around corners where rigid metal conduit won’t fit. For use indoors, it’s ideal for short connections or runs through walls in spaces that require both flexibility and durability.

Straight Electrical Box Connectors


Screw-Clamp × Threaded	Screw-Clamp × Snap-In

Attach conduit to a knockout in an electrical box.

Zinc-Plated Iron—Resist occasional exposure to moisture but not as strong as zinc‑plated steel.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

316 Stainless Steel—Our most corrosion-resistant fittings won't degrade when exposed to salt water and harsh chemicals.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Knockout Trade Size	Gender	Includes	Specs. Met		Each
Screw-Clamp Conduit Connection × Threaded Knockout Connection







				Zinc-Plated Iron

				3/8	Female	1/2	NPSM	—	Male	Locknut	UL Listed	7920K81	00000


				1/2	Female	1/2	NPSM	—	Male	Locknut	UL Listed	7920K82	0000
				3/4	Female	3/4	NPSM	—	Male	Locknut	UL Listed	7920K83	0000
				1	Female	1	NPT	—	Male	Locknut	UL Listed	7920K84	0000
				1 1/4	Female	1 1/4	NPT	—	Male	Locknut	UL Listed	7920K85	0000
				1 1/2	Female	1 1/2	NPT	—	Male	Locknut	UL Listed	7920K86	00000
				2	Female	2	NPT	—	Male	Locknut	UL Listed	7920K87	00000




						Zinc Alloy

						3/8	Female	1/2	NPSM	—	Male	Locknut	CSA Certified, UL Listed	7267K26	0000


						3/8	Female	1/2	NPSM	—	Male	Locknut, Two Screws	CSA Certified, UL Listed	8180K21	0000
						1/2	Female	1/2	NPSM	—	Male	Locknut	CSA Certified, UL Listed	7267K27	0000
						3/4	Female	3/4	NPSM	—	Male	Locknut	CSA Certified, UL Listed	7267K28	0000
						1	Female	1	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7267K21	0000
						1 1/4	Female	1 1/4	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7267K22	00000
						1 1/2	Female	1 1/2	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7267K11	00000
						2	Female	2	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7267K12	00000




								316 Stainless Steel

								3/8	Female	1/2	NPSM	—	Male	Locknut	—	8533K11	00000


								1/2	Female	1/2	NPSM	—	Male	Locknut	—	8533K12	00000
								3/4	Female	3/4	NPSM	—	Male	Locknut	—	8533K13	00000
								1	Female	1	NPSM	—	Male	Locknut	—	8533K14	00000
								1 1/4	Female	1 1/4	NPSM	—	Male	Locknut	—	8533K15	00000


								Screw-Clamp Conduit Connection × Snap-In Knockout Connection







												Zinc Alloy

												3/8	Female	—	—	1/2	Male	—	CSA Certified, UL Listed	8180K31	0000


												1/2	Female	—	—	1/2	Male	—	CSA Certified, UL Listed	8180K32	0000
												3/4	Female	—	—	3/4	Male	—	CSA Certified, UL Listed	8180K33	0000

90° Elbow Electrical Box Connectors

Screw-Clamp ×

Threaded

Change the direction of your run to connect to a knockout in an electrical box.

Zinc-Plated Iron—Resist occasional exposure to moisture but not as strong as zinc‑plated steel.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

316 Stainless Steel—Our most corrosion-resistant fittings won't degrade when exposed to salt water and harsh chemicals.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Includes	Specs. Met		Each
Screw-Clamp Conduit Connection × Threaded Knockout Connection







				Zinc-Plated Iron

				3/8	Female	1/2	NPSM	Male	Locknut	UL Listed	7920K71	00000


				1/2	Female	1/2	NPSM	Male	Locknut	UL Listed	7920K72	0000
				3/4	Female	3/4	NPSM	Male	Locknut	UL Listed	7920K73	0000
				1	Female	1	NPSM	Male	Locknut	UL Listed	7920K74	00000
				1 1/4	Female	1 1/4	NPSM	Male	Locknut	UL Listed	7920K75	00000
				1 1/2	Female	1 1/2	NPSM	Male	Locknut	UL Listed	7920K76	00000
				2	Female	2	NPSM	Male	Locknut	UL Listed	7920K77	00000




						Zinc Alloy

						3/8	Female	1/2	NPSM	Male	Locknut	C-UL Listed, UL Listed	7267K63	0000


						3/8	Female	1/2	NPSM	Male	Locknut	CSA Certified, UL Listed	7267K33	0000
						1/2	Female	1/2	NPSM	Male	Locknut	CSA Certified, UL Listed	7267K34	0000
						3/4	Female	3/4	NPSM	Male	Locknut	CSA Certified, UL Listed	7267K35	0000
						1	Female	1	NPSM	Male	Locknut	CSA Certified, UL Listed	7267K36	00000
						1 1/4	Female	1 1/4	NPSM	Male	Locknut	CSA Certified, UL Listed	7267K37	00000
						1 1/2	Female	1 1/2	NPSM	Male	Locknut	CSA Certified, UL Listed	7267K15	00000
						2	Female	2	NPSM	Male	Locknut	CSA Certified, UL Listed	7267K16	00000




								316 Stainless Steel

								3/8	Female	1/2	NPSM	Male	Locknut	—	8533K31	00000


								1/2	Female	1/2	NPSM	Male	Locknut	—	8533K32	00000
								3/4	Female	3/4	NPSM	Male	Locknut	—	8533K33	00000
								1	Female	1	NPSM	Male	Locknut	—	8533K34	00000
								1 1/4	Female	1 1/4	NPSM	Male	Locknut	—	8533K35	00000

Wye Electrical Box Connectors


Screw-Clamp × Threaded	Screw-Clamp × Snap-In

Join two pieces of conduit to one knockout.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Knockout Trade Size	Gender	Includes	Specs. Met		Each
Screw-Clamp Conduit Connection × Threaded Knockout Connection







				Zinc Alloy

				3/8	Female	1/2	NPSM	—	Male	Locknut	CSA Certified, UL Listed	8180K22	00000


				Screw-Clamp Conduit Connection × Snap-In Knockout Connection







								Zinc Alloy

								3/8	Female	—	—	1/2	Male	—	CSA Certified, UL Listed	8180K34	0000

Thin-Wall (EMT) Metal Conduit and Fittings

With a thinner wall, this conduit is a lighter alternative to IMC and RMC. The most common choice for indoor walls and ceilings, it shields wiring from scrapes and bumps. EMT can dent or crush from impact, however, so it should be routed away from high‑traffic areas where carts and vehicles pass through.

Straight Conduit Connectors

Screw-Clamp

Connection

Join lengths of conduit to create a continuous run.

Zinc-Plated Steel—The strength of steel with a plating that protects from occasional exposure to moisture.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

316 Stainless Steel—Our most corrosion-resistant fittings won't degrade when exposed to salt water and harsh chemicals.

	Choose a Color		Each
Screw-Clamp Conduit Connection







	Zinc-Plated Steel

	1/2	Female	C-UL Listed, UL Listed	—	7150K41	00000


	1/2	Female	UL Listed	Blue, Red	9150T32	0000
	3/4	Female	C-UL Listed, UL Listed	—	7150K42	0000
	3/4	Female	UL Listed	Black, Blue, White, Red	9150T31	0000
	1	Female	C-UL Listed, UL Listed	—	7150K43	0000
	1	Female	UL Listed	Blue, Red	9150T33	0000
	1 1/4	Female	C-UL Listed, UL Listed	—	7150K47	0000
	1 1/2	Female	C-UL Listed, UL Listed	—	7150K48	0000
	2	Female	C-UL Listed, UL Listed	—	7150K49	0000
	2 1/2	Female	CSA Certified, UL Listed	—	7150K217	00000
	3	Female	CSA Certified, UL Listed	—	7150K218	00000


	4	Female	CSA Certified, UL Listed	—	7150K219	00000




			Zinc Alloy

			1/2	Female	CSA Certified, UL Listed	—	7150K81	0000


			3/4	Female	CSA Certified, UL Listed	—	7150K82	0000
			1	Female	CSA Certified, UL Listed	—	7150K83	0000
			1 1/4	Female	CSA Certified, UL Listed	—	7150K84	0000
			1 1/2	Female	CSA Certified, UL Listed	—	7150K85	0000
			2	Female	CSA Certified, UL Listed	—	7150K86	0000
			2 1/2	Female	CSA Certified, UL Listed	—	7150K417	00000
			3	Female	CSA Certified, UL Listed	—	7150K418	00000
			4	Female	CSA Certified, UL Listed	—	7150K419	00000




					316 Stainless Steel

					1/2	Female	—	—	1843T55	00000


					3/4	Female	—	—	1843T56	00000
					1	Female	—	—	1843T57	00000

90° Elbow Conduit Connectors


Screw-Clamp Connection	Screw-Clamp Connection with Removable Cover

Change the direction of your run.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

	Features	Specs. Met		Each
Screw-Clamp Conduit Connection







	Zinc Alloy

	1/2	Female	1 5/16"	Removable Cover	CSA Certified, UL Listed	8081K21	00000


	1/2	Female	1 7/8"	—	UL Listed	8081K91	00000
	3/4	Female	1 3/8"	Removable Cover	CSA Certified, UL Listed	8081K22	0000
	3/4	Female	2"	—	UL Listed	8081K92	00000
	1	Female	1 7/8"	Removable Cover	CSA Certified, UL Listed	8081K23	00000

Wye Conduit Reducers

Screw-Clamp

Connection

Take one run of conduit and branch it into two smaller ones, continuing in the same direction.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

		Each
Screw-Clamp Conduit Connection







	Zinc Alloy

	3/4 × 1/2	Female	C-UL Listed, UL Listed	8081K81	000000


	1 × 3/4	Female	C-UL Listed, UL Listed	8081K82	00000

Straight Electrical Box Connectors

Screw-Clamp ×

Threaded

Attach conduit to a knockout in an electrical box.

Zinc-Plated Steel—The strength of steel with a plating that protects from occasional exposure to moisture.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

316 Stainless Steel—Our most corrosion-resistant fittings won't degrade when exposed to salt water and harsh chemicals.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Includes	Specs. Met	Choose a Color		Each
Screw-Clamp Conduit Connection × Threaded Knockout Connection







				Zinc-Plated Steel

				1/2	Female	1/2	NPSM	Male	Locknut	C-UL Listed, UL Listed	—	7150K34	00000


				1/2	Female	1/2	NPSM	Male	Locknut, Grommet	C-UL Listed, UL Listed	—	7150K61	0000
				1/2	Female	1/2	NPSM	Male	Locknut	UL Listed	Blue, Red	9150T22	0000
				3/4	Female	3/4	NPSM	Male	Locknut	C-UL Listed, UL Listed	—	7150K35	0000
				3/4	Female	3/4	NPSM	Male	Locknut, Grommet	C-UL Listed, UL Listed	—	7150K62	0000
				3/4	Female	3/4	NPSM	Male	Locknut	UL Listed	Black, Blue, White, Red	9150T21	0000
				1	Female	1	NPSM	Male	Locknut	C-UL Listed, UL Listed	—	7150K36	0000
				1	Female	1	NPSM	Male	Locknut, Grommet	C-UL Listed, UL Listed	—	7150K63	0000
				1	Female	1	NPSM	Male	Locknut	UL Listed	Blue, Red	9150T23	0000
				1 1/4	Female	1 1/4	NPSM	Male	Locknut	C-UL Listed, UL Listed	—	7150K44	0000
				1 1/4	Female	1 1/4	NPSM	Male	Locknut, Grommet	C-UL Listed, UL Listed	—	7150K64	0000


				1 1/2	Female	1 1/2	NPSM	Male	Locknut	C-UL Listed, UL Listed	—	7150K45	0000
				1 1/2	Female	1 1/2	NPSM	Male	Locknut, Grommet	C-UL Listed, UL Listed	—	7150K65	0000
				2	Female	2	NPSM	Male	Locknut	C-UL Listed, UL Listed	—	7150K46	00000
				2	Female	2	NPSM	Male	Locknut, Grommet	C-UL Listed, UL Listed	—	7150K66	0000
				2 1/2	Female	2 1/2	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K117	00000
				2 1/2	Female	2 1/2	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K211	00000
				3	Female	3	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K118	00000
				3	Female	3	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K212	00000
				4	Female	4	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K119	00000
				4	Female	4	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K213	00000




						Zinc Alloy

						1/2	Female	1/2	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K17	0000


						1/2	Female	1/2	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K74	0000
						3/4	Female	3/4	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K18	0000
						3/4	Female	3/4	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K75	0000
						1	Female	1	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K19	0000
						1	Female	1	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K76	0000
						1 1/4	Female	1 1/4	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K21	0000
						1 1/4	Female	1 1/4	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K91	0000
						1 1/2	Female	1 1/2	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K22	0000
						1 1/2	Female	1 1/2	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K92	0000
						2	Female	2	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K23	0000


						2	Female	2	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K93	0000
						2 1/2	Female	2 1/2	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K317	00000
						2 1/2	Female	2 1/2	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K411	00000
						3	Female	3	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K318	00000
						3	Female	3	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K412	00000
						4	Female	4	NPSM	Male	Locknut	CSA Certified, UL Listed	—	7150K319	00000
						4	Female	4	NPSM	Male	Locknut, Grommet	CSA Certified, UL Listed	—	7150K413	00000




						316 Stainless Steel

						1/2	Female	1/2	NPT	Male	Locknut	—	—	1843T34	00000


		3/4	Female			3/4	NPT	Male	Locknut	—	—	1843T35	00000
		1	Female			1	NPT	Male	Locknut	—	—	1843T36	00000
		2	Female			2	NPT	Male	Locknut	—	—	1843T39	000000

Offset-Elbow Electrical Box Connectors

Screw-Clamp × Threaded

Attach conduit to an electrical box when the knockout and the run don’t line up.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

	Conduit Connection		Knockout Connection
	Conduit Trade Size	Gender	Pipe Size	Thread Type	Gender	Offset Lg.	Includes	Specs. Met		Each
Screw-Clamp Conduit Connection × Threaded Knockout Connection







				Zinc Alloy

				1/2	Female	1/2	NPSM	Male	3/8"	Locknut	CSA Certified, UL Listed	8081K41	00000


				3/4	Female	3/4	NPSM	Male	3/4"	Locknut	CSA Certified, UL Listed	8081K42	0000
				1	Female	1	NPSM	Male	1"	Locknut	UL Listed	8081K43	00000

Conduit Adapters

Screw-Clamp

Conduit

Connection

For transition points in your run, these adapters link different conduit types.

Zinc Alloy—A good option for light duty applications that don't require high strength. These fittings resist occasional exposure to moisture.

	Conduit Connection
	Conduit Trade Size	Gender	For Conduit Flexibility	Material	Specs. Met		Each
Screw-Clamp Conduit Connection







				EMT × FMC

				1/2 × 3/8	Female	Rigid × Flexible	Zinc Alloy	—	7984K1	00000


				1/2	Female	Rigid × Flexible	Zinc Alloy	UL Listed	7984K2	0000
				3/4	Female	Rigid × Flexible	Zinc Alloy	UL Listed	7984K3	0000
				1	Female	Rigid × Flexible	Zinc Alloy	UL Listed	7984K27	0000

Flexible Plastic (MPT) Conduit and Fittings

Bend, twist, and wrap machine wiring through tight spaces. Corrugated like ENT, this conduit is more resilient against repeated flexing. Pair it with compatible fittings to seal out liquid and protect wiring indoors and outdoors. Conduit and fittings are made of nylon to resist moisture and chemicals.

Conduit Bumpers

Screw-Clamp

Connection

Prevent wear and cracks by shielding sections of conduit that rub and bang against nearby components. Also known as wear rings and abrasion rings, use these bumpers where machinery vibrates, conduit is dragged across a surface, and robots move dynamically.

	Color	Specs. Met		Each
Screw-Clamp Conduit Connection







	Nylon

	1/2	Two Piece	Male	Black	UL 94 V-0	6963T211	000000


	3/4	Two Piece	Male	Black	UL 94 V-0	6963T212	00000
	1	Two Piece	Male	Black	UL 94 V-0	6963T213	00000
	1 1/4	Two Piece	Male	Black	UL 94 V-0	6963T214	00000
	1 1/2	Two Piece	Male	Black	UL 94 V-0	6963T215	00000

Medium-Wall (IMC) and Thick-Wall (RMC) Metal Conduit and Fittings

The industry standards, IMC and RMC conduit systems offer the most durable protection indoors, outdoors, and underground. Both types have the same outside diameter, so they use many of the same fittings. This interchangeability makes retrofits easier and reduces the parts you need to keep on hand.

Straight Conduit Connectors

Screw-Clamp

Connection

Join lengths of conduit to create a continuous run.

Zinc-Plated Steel—The strength of steel with a plating that protects from occasional exposure to moisture.

	Specs. Met		Each
Screw-Clamp Conduit Connection







	Zinc-Plated Steel

	1/2	Female	IMC, RMC	UL Listed	7513K97	00000


	3/4	Female	IMC, RMC	UL Listed	7513K98	0000
	1	Female	IMC, RMC	UL Listed	7513K99	00000
	1 1/4	Female	IMC, RMC	UL Listed	7513K901	00000
	1 1/2	Female	IMC, RMC	UL Listed	7513K902	00000
	2	Female	IMC, RMC	UL Listed	7513K903	00000