Round Electrical Boxes | McMaster-Carr

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	Material Material

Steel

Aluminum

Brass

	Shape Shape	Show

	Round

	Shape Shape	Hide


Square	Rectangle

Octagon	Round

	Environment Environment

Corrosive

Outdoor

	Conduit Trade Size Conduit Trade Size

1/2

3/4

	Diameter Diameter

3 7/8"

4 1/8"

5 1/4"

	Outlet Box Component Outlet Box Component

	For Conduit Material For Conduit Material

Aluminum

Stainless Steel

Steel

	Specifications Met Specifications Met

CSA

NEMA

	Number of Conduit Connections Number of Conduit Connections

	For Maximum Number of Devices For Maximum Number of Devices

	Color Color

	Gray

	Finish Finish

Powder Coated

	Depth Depth

1 1/2"

	Conduit Connection Type Conduit Connection Type

Threaded

	Conduit Type Conduit Type

Rigid

IMC

	Capacity Capacity

16 cu. in.

16.3 cu. in.

	For Device Type For Device Type

NEMA Outlet

Conduit Connection

	Cover Style Cover Style

Raised

Flat

	For Number of Outlets For Number of Outlets

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8 Products

Carpet Flanges for Steel Floor Outlet Boxes

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

Dia.	Material	Specifications Met		Each
5 1/4"	Brass	UL Listed, CSA Certified	000000	000000

Covers for Steel Floor Outlet Boxes

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

For Max. No. of Devices	For Device Type	For No. of Outlets	Dia.	Material	Specifications Met		Each
1	NEMA Outlet	2	3 7/8"	Brass	UL Listed, CSA Certified	000000	000000

Round Weatherproof Outlet Boxes

Exposure to rain, snow, and wet conditions won't damage these corrosion-resistant boxes. They come with sealing plugs for unused connections.

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

For Max. No. of Devices	No. of Conduit Connections	Conduit Trade Size	Conduit Connection Type	For Conduit Type	For Conduit Material	Dia.	Dp.	Capacity, cu. in.	Material	Mounting Fasteners Included	Specifications Met		Each
1	5	1/2	Threaded	IMC, Rigid	Aluminum, Stainless Steel, Steel	4"	1 1/2"	16	Gray Powder-Coated Aluminum	Yes	UL Listed, CSA Certified, NEMA 3R	000000	000000
1	5	3/4	Threaded	IMC, Rigid	Aluminum, Stainless Steel, Steel	4"	1 1/2"	16	Gray Powder-Coated Aluminum	Yes	UL Listed, CSA Certified, NEMA 3R	0000000	00000

Extenders

No. of Conduit Connections	Conduit Trade Size	Conduit Connection Type	For Conduit Type	For Conduit Material	Dia.	Dp.	Capacity, cu. in.	Material	Mounting Fasteners Included	Specifications Met		Each
4	1/2	Threaded	IMC, Rigid	Aluminum, Stainless Steel, Steel	4"	1 1/2"	16.3	Gray Powder-Coated Aluminum	Yes	UL Listed, CSA Certified, NEMA 3R	0000000	000000

Blank Covers

Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
4 1/8"	Gray Powder-Coated Steel	Yes	UL Listed, CSA Certified, NEMA 3R	0000000	00000

Covers with One Conduit Connection

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
1	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	UL Recognized, CSA Certified, NEMA 3R	0000000	00000

Covers with Three Conduit Connections

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
3	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	UL Recognized, CSA Certified, NEMA 3R	000000	00000

Round Covers for Weatherproof Outlet Boxes

Exposure to rain, snow, and wet conditions won’t damage these corrosion-resistant covers. They have a sealing gasket to keep out dust and moisture.

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

With One Conduit Connection

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
1	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	UL Recognized, CSA Certified, NEMA 3R	0000000	00000

With Three Conduit Connections

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
3	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	UL Recognized, CSA Certified, NEMA 3R	000000	00000

Extenders for Round Weatherproof Outlet Boxes

Add depth to your weatherproof outlet box. Exposure to rain, snow, and wet conditions won’t damage this corrosion-resistant extender. It comes with sealing plugs for unused connections.

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

No. of Conduit Connections	Conduit Trade Size	Conduit Connection Type	For Conduit Type	For Conduit Material	Dia.	Dp.	Capacity, cu. in.	Material	Mounting Fasteners Included	Specifications Met		Each
4	1/2	Threaded	IMC, Rigid	Aluminum, Stainless Steel, Steel	4"	1 1/2"	16.3	Gray Powder-Coated Aluminum	Yes	UL Listed, CSA Certified, NEMA 3R	0000000	000000

Blank Covers

Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
4 1/8"	Gray Powder-Coated Steel	Yes	UL Listed, CSA Certified, NEMA 3R	0000000	00000

Covers with One Conduit Connection

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
1	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	UL Recognized, CSA Certified, NEMA 3R	0000000	00000

Covers with Three Conduit Connections

For Max. No. of Devices	Conduit Trade Size	Conduit Connection Type	Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
3	1/2	Threaded	4 1/8"	Gray Powder-Coated Aluminum	Yes	UL Recognized, CSA Certified, NEMA 3R	000000	00000

Blank Round Covers for Weatherproof Outlet Boxes

Close off unused outlets. Exposure to rain, snow, and wet conditions won’t damage this corrosion-resistant cover. It has a sealing gasket to keep out dust and moisture.

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

Dia.	Material	Mounting Fasteners Included	Specifications Met		Each
4 1/8"	Gray Powder-Coated Steel	Yes	UL Listed, CSA Certified, NEMA 3R	0000000	00000

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