Plastic Dust Plugs | McMaster-Carr

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2,460 Products

Building and Machinery Hardware

Protective Plugs

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

469 products

Protective Caps

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

856 products

Fluid Handling

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

84 products

Pipe and Fittings

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

439 products

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

249 products

Breather Vents

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

91 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

70 products

Electrical Power, Networking, and Controlling

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

1 product

RJ45 Connector Caps

Protect sockets and maintain the IP67 rating when not in use

1 product

Power Connector Caps

Cover pin-and-sleeve power connectors when they're not in use

4 products

RJ45 Connector Security Clips

Lock Ethernet cords in place to prevent unauthorized removal from ports

3 products

USB Connector Caps

Shield unused USB connectors from damage, contaminants, and moisture

3 products

Metric Circular Connector Caps

Keep metric circular connectors safe when they're not in use

2 products

Data Port Locks

Block USB or Ethernet ports from unauthorized use

9 products

Electrical Enclosure Vents

Attach to sealed enclosures so air can flow to equalize temperature and pressure

5 products

Electrical Enclosure Plugs

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

22 products

Electrical Enclosure Drains

Release moisture to keep components dry

2 products

DIN Rail Caps

Guard the edges of DIN rail from damage and create a finished look

2 products

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

1 product

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

4 products

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Fabricating and Machining

Fixture Plate Plugs

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

2 products

Tooling Ball Covers

Protect tooling balls when not in use

2 products

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

18 products

Dust Covers

Stretch over drums, pails, and other objects to keep out dust and debris

16 products

Safety Equipment

Bearing Guards

Shield bearings from dirt, and protect fingers and tools from moving parts

20 products

Communication

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

2 products