Bend and Stay Tubing | McMaster-Carr

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90 Products

About Conduit

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

Fitting Type

Connector

Join lengths of conduit or connect conduit to an electrical box

74 products

Adapter

Connect different types of conduit or threads

65 products

Fitting Type

Conduit

Route and protect wiring and cable

7 products

Grommet

Protect wire from sharp edges as you pull it through conduit

9 products

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.

Conduit

Run wiring through conduit to route and protect it.

Bend and Stay—Flex this conduit and it stays routed in position. It is not designed for repeated bending, which can weaken the construction.

Galvanized Steel—Strong and resists rust and mild chemicals.

					Per Ft.
	Conduit Trade Size	Bend Radius	Choose a Length, ft.		1-99	100-Up
Bend and Stay







				Galvanized Steel

				3/8	2"	5, 10, 25, 50, 100	74115K91	00000	00000


				1/2	3"	5, 10, 25, 50, 100	74115K92	0000	0000
				3/4	3"	5, 10, 25, 50, 100	74115K93	0000	0000
				1	4"	5, 10, 25, 50	74115K94	0000	0000
				1 1/4	5"	5, 10, 25, 50	74115K95	0000	0000
				1 1/2	6"	5, 10, 25	74115K96	0000	0000
				2	8"	2, 5, 10, 25	74115K97	0000	0000

Straight Conduit Connectors

Twist-In

Connection

Join lengths of conduit to create a continuous run.

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.

		Each
Twist-In Conduit Connection







	Zinc Alloy

	1/2	Male	CSA Certified, UL Listed	8180K11	00000


	3/4	Male	CSA Certified, UL Listed	8180K12	0000
	1	Male	CSA Certified, UL Listed	8180K13	0000
	1 1/4	Male	CSA Certified, UL Listed	8180K14	0000
	1 1/2	Male	CSA Certified, UL Listed	8180K15	0000
	2	Male	CSA Certified, UL Listed	8180K16	00000




			316 Stainless Steel

			1/2	Male	—	8533K41	0000


			3/4	Male	—	8533K42	0000
			1	Male	—	8533K43	00000

Straight Electrical Box Connectors


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

Screw-On × Threaded	Twist-In × 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-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.

Aluminum—One-third the weight of steel that's the same size. Aluminum is also nonmagnetic to prevent electrical interference in nearby equipment.

	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


Push-In Conduit Connection × Snap-In Knockout Connection







												Zinc Alloy

												3/8	Female	—	—	1/2	Male	—	CSA Certified, UL Listed	7969K21	0000


												Screw-On Conduit Connection × Threaded Knockout Connection







														Zinc-Plated Steel

														3/8	Female	1/2	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7969K51	0000


														1/2	Female	1/2	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7969K41	0000
														3/4	Female	3/4	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7969K43	00000
														1	Female	1	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7969K52	00000
														2	Female	2	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7969K53	00000




																Aluminum

						1/2	Female									1/2	NPSM	—	Male	Locknut	C-UL Listed, UL Listed	7969K42	0000


						Twist-In Conduit Connection × Threaded Knockout Connection







																		Zinc Alloy

																		3/8	Male	1/2	NPSM	—	Male	Locknut	CSA Certified, UL Listed	7267K51	0000


								1/2	Male									1/2	NPSM	—	Male	Locknut	CSA Certified, UL Listed	7267K52	0000
								3/4	Male									3/4	NPSM	—	Male	Locknut	CSA Certified, UL Listed	7267K53	0000
								1	Male									1	NPSM	—	Male	Locknut	CSA Certified, UL Listed	7267K54	0000
								1 1/4	Male	1 1/4	NPSM							—	Male	Locknut	CSA Certified, UL Listed	7267K55	00000
								1 1/2	Male	1 1/2	NPSM							—	Male	Locknut	CSA Certified, UL Listed	7267K13	00000
								2	Male	2	NPSM							—	Male	Locknut	CSA Certified, UL Listed	7267K14	00000




										316 Stainless Steel

										3/8	Male							1/2	NPSM	—	Male	Locknut	—	8533K21	00000


1/2	Male									1/2	NPSM							—	Male	Locknut	—	8533K22	00000
3/4	Male									3/4	NPSM							—	Male	Locknut	—	8533K23	00000
1	Male									1	NPSM							—	Male	Locknut	—	8533K24	00000
1 1/4	Male	1 1/4								NPSM	—							Male	Locknut	—	8533K25	00000

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	Push-In × 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


								Push-In Conduit Connection × Snap-In Knockout Connection







												Zinc Alloy

												3/8	Female	—	—	1/2	Male	—	CSA Certified, UL Listed	7969K31	0000

Conduit Grommets

Push-In

Connection

Protect wire from sharp edges as you pull it through by adding these grommets to the ends of conduit.

	Pkg. Qty.		Pkg.
Push-In Conduit Connection







	Plastic

	5/16	Female	Red	100	8216K41	000000


	3/8	Female	Red	100	8216K42	00000
	7/16	Female	Red	50	8216K43	00000
	1/2	Female	Red	50	8216K44	00000
	3/4	Female	Red	50	8216K45	00000
	1	Female	Red	1	8216K511	0000
	1 1/4	Female	Red	10	8216K512	00000
	1 1/2	Female	Red	10	8216K513	00000
	2	Female	Red	1	8216K514	0000