Knockout Bushings | McMaster-Carr

	Conduit Trade Size Conduit Trade Size

	Type Type

	Material Material

	Shape Shape


Straight	90° Elbow

Adjustable- Angle Elbow	45° Elbow

Offset Elbow	Wye

	Pipe Size Pipe Size

	Thread Type Thread Type

	Flexibility Flexibility

	Conduit Connection Type Conduit Connection Type

	Connection Type Connection Type


Conduit	Electrical Box

	Conduit Type Conduit Type

	Gender Gender

Male

Female

	Specifications Met Specifications Met

	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

Flanged End

Snap In

	System of Measurement System of Measurement

Metric

Inch

	Thread Size Thread Size

	Color Color

	Gray		Black
	Blue		Red
	White

	Environment Environment

High-
Pressure
Washdown

Submersible

Hazardous

	For Knockout Trade Size For Knockout Trade Size

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

REACH Compliant

	For Conduit Material For Conduit Material

	Schedule Schedule

Forward

How can we improve?

631 Products

About Conduit

Reducing Washers for Medium-Wall (IMC)
and Thick-Wall (Rigid) Steel Conduit

Reduce the knockout size in an outlet box or enclosure so you can attach a different size of conduit to it.

Raintight Reducing Washers for Medium-Wall
(IMC) and Thick-Wall (Rigid) Steel Conduit

Seal out moisture while reducing the knockout size in an outlet box or enclosure so you can attach a different size of conduit to it.

Adapters for Medium-Wall (IMC) and
Thick-Wall (Rigid) Steel Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Connectors for Medium-Wall (IMC)
and Thick-Wall (Rigid) Steel Conduit

Join pieces of conduit.

Adapters for Rigid PVC Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Adapters for Rigid Aluminum Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Hazardous Location Conduit Adapters

Attach conduit to a knockout in an outlet box or enclosure.

Adapters for Rigid Stainless Steel Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Adapters for Thin-Wall (EMT) Steel Conduit

Attach conduit to a knockout in an outlet box or enclosure.

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

Attach conduit to a knockout in an outlet box or enclosure.

Adapters for Thin-Wall (EMT) Stainless Steel Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Flexible Conduit and Fittings

Adapters for Flexible Metal Conduit and Armored Cable

Attach conduit and armored cable to a knockout in an outlet box or enclosure.

Adapters for Flexible Metal Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Adapters for Choose-a-Color Flexible Plastic Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Adapters for Flexible Plastic Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Fittings for Liquid-Tight Flexible Metal Conduit

These fittings seal out liquids when connecting liquid-tight flexible metal conduit to a knockout in an outlet box or enclosure.

Adapters for Liquid-Tight Flexible Plastic Conduit

Attach conduit to a knockout in an outlet box or enclosure.

Fittings for Shielded Flexible Plastic Conduit

Made of brass, these adapters provide electromagnetic interference (EMI) protection when connecting shielded flexible plastic conduit to a knockout in an outlet box or enclosure.

Conduit Fitting Locknuts

Locknuts for Metal Conduit Fittings

Secure threaded metal conduit fittings to a knockout in an outlet box or enclosure.

Locknuts for Plastic Conduit Fittings

Secure threaded plastic conduit fittings to a knockout in an outlet box or enclosure.

Continuous-Flex Conduit and Fittings

Fittings for Continuous-Flex Liquid-Tight Plastic Conduit

These fittings seal out liquid when used with continuous-flex liquid-tight plastic conduit.

Fittings for Continuous-Flex Plastic Conduit

One end twists into a piece of conduit for a quick connection; the other end attaches to a knockout in an outlet box or enclosure.

About Conduit

Conduit and Fittings

Reducing Washers for Medium-Wall (IMC)and Thick-Wall (Rigid) Steel Conduit

Raintight Reducing Washers for Medium-Wall(IMC) and Thick-Wall (Rigid) Steel Conduit

Adapters for Medium-Wall (IMC) andThick-Wall (Rigid) Steel Conduit

Connectors for Medium-Wall (IMC)and Thick-Wall (Rigid) Steel Conduit

Adapters for Rigid PVC Conduit

Adapters for Rigid Aluminum Conduit

Hazardous Location Conduit Adapters

Adapters for Rigid Stainless Steel Conduit

Adapters for Thin-Wall (EMT) Steel Conduit

Adapters for Choose-a-ColorThin-Wall (EMT) Steel Conduit

Adapters for Thin-Wall (EMT) Stainless Steel Conduit

Flexible Conduit and Fittings

Adapters for Flexible Metal Conduit and Armored Cable

Adapters for Flexible Metal Conduit

Adapters for Choose-a-Color Flexible Plastic Conduit

Adapters for Flexible Plastic Conduit

Fittings for Liquid-Tight Flexible Metal Conduit

Adapters for Liquid-Tight Flexible Plastic Conduit

Fittings for Shielded Flexible Plastic Conduit

Conduit Fitting Locknuts

Locknuts for Metal Conduit Fittings

Locknuts for Plastic Conduit Fittings

Continuous-Flex Conduit and Fittings

Fittings for Continuous-Flex Liquid-Tight Plastic Conduit

Fittings for Continuous-Flex Plastic Conduit

Reducing Washers for Medium-Wall (IMC)
and Thick-Wall (Rigid) Steel Conduit

Raintight Reducing Washers for Medium-Wall
(IMC) and Thick-Wall (Rigid) Steel Conduit

Adapters for Medium-Wall (IMC) and
Thick-Wall (Rigid) Steel Conduit

Connectors for Medium-Wall (IMC)
and Thick-Wall (Rigid) Steel Conduit

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