Metal Electrical Knockout Plugs | McMaster-Carr

Filter by

Material

System of Measurement

Knockout Trade Size

Knockout Diameter

ID

Environment

Head Diameter

Plug Connection Method

Finish

Panel Thickness

Pipe Size

Shape

Thread Size

Thread Type

Color

Hole Diameter

Enclosure Rating

For Push-Button Hole Size

For Use With

Attachment Type

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

RoHS

For Hole Type

Overall Height

How can we improve?

125 Products

Electrical Enclosure Plugs

Knockout Plugs for Enclosures

Knockout Plugs for Enclosures

Guard electrical components from debris and pesky critters

Watertight Knockout Plugs for Enclosures

Watertight Knockout Plugs for Enclosures

Don't let water sneak into unused conduit knockouts

Watertight Push-Button Plugs for Enclosures

Watertight Push-Button Plugs for Enclosures

Seal unused push-button switch holes so water won't sneak in

Threaded Plugs for Enclosures

Threaded Plugs for Enclosures

Twist in unused threaded holes for a tighter hold than clamp-on and snap-in plugs

Sanitary Threaded Plugs for Enclosures

Sanitary Threaded Plugs for Enclosures

Super smooth with round edges to prevent bacteria buildup

Other Products

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)