Steel Dust Caps | McMaster-Carr

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3,094 Products

Fluid Handling

Hose End Caps

Cover the ends of hose to keep out dirt and debris

124 products

Hose Fittings

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

29 products

Hose End Plugs

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

6 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

362 products

Pipe Plugs

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

841 products

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

159 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

259 products

Tube End Plugs

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

83 products

Tube Fittings

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

1 product

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

65 products

Breather Vents

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

77 products

Building and Machinery Hardware

Protective Caps

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

52 products

Protective Plugs

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

173 products

Electrical

Electrical Connector Caps

Protect data connectors when not in use

10 products

Electrical Enclosure Plugs

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

39 products

Fabricating and Machining

Fixture Plate Plugs

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

1 product

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

64 products

Retaining Rings

Hold components on a shaft

25 products

Safety Equipment

Bearing Guards

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

6 products

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

2 products