Aluminum Hole Plugs | McMaster-Carr

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Material

Stainless Steel

For Use With

Hydraulic Fluid

Shape

System of Measurement

Pipe Size

Knockout Trade Size

Cord OD

0.125" to 0.188"

0.188" to 0.25"

0.25" to 0.312"

0.312" to 0.375"

0.375" to 0.438"

Thread Type

Fitting Type

ID

1/64" to 1 1/8"

1/64" to 1 1/2"

1/32" to 1 3/4"

1/32" to 2 7/8"

Thread Size

Environment

Knockout Connection

OD

0.125" to 0.188"

0.188" to 0.25"

0.25" to 0.312"

0.312" to 0.375"

Fitting Connection

Spec Image

Spec Image

Quick Disconnect

REACH

RoHS

Compliant with Exemptions

Cord Holding Type

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Maximum Temperature

100° F to 249° F

250° F to 499° F

500° F to 999° F

Gender

Pipe Material

For Cord Shape

Color

Coupling Size

How can we improve?

1,016 Products

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Protective Plugs

Protective Plugs

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

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Slip-On Framing Caps

Slip-On Framing Caps

Cover the rough ends of slip-on framing rails for a finished look

Electrical

Electrical Enclosure Plugs

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Fluid Handling

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

Fastening and Joining

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

Safety Equipment

Fire Hydrant Caps

Fire Hydrant Caps

Pair with a hook-style spanner wrench to quickly cover and uncover fire hydrants

Fabricating and Machining

Fixture Plate Plugs

Fixture Plate Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines

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