Metal Dust Caps | McMaster-Carr

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Corrosion-Resistant Coated

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Chicago Fire Department

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4,019 Products

Fluid Handling

Hose End Caps

Cover the ends of hose to keep out dirt and debris

129 products

Hose Fittings

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

65 products

Hose End Plugs

Insert into the ends of hose to keep out dirt and debris

9 products

Pipe and Fittings

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

1,835 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

343 products

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

122 products

Tube Fittings

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

1 product

Breather Vents

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

96 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

69 products

Electrical

Electrical Connector Caps

Protect data connectors when not in use

35 products

Electrical Enclosure Plugs

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

55 products

Building and Machinery Hardware

Protective Caps

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

84 products

Protective Plugs

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

198 products

Safety Equipment

Fire Hydrant Caps

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

6 products

Fire Hydrant Plugs

Pair with a hook-style spanner wrench to quickly seal fire hydrants and washdown equipment

3 products

Bearing Guards

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

6 products

Fabricating and Machining

Fixture Plate Plugs

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

6 products

Fastening and Joining

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

35 products

Quick-Release Pin Retaining Caps

Hold quick-release pins in holes that are oversized or out of round

23 products

Standoff Caps

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

66 products

Retaining Rings

Hold components on a shaft

25 products

Facility and Grounds Maintenance

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

2 products

Material Handling

Valve Stem Caps

Keep dust and debris out of tire valves

1 product