Metal Finishing Plugs | McMaster-Carr

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Corrosion-Resistant Coated

Pipe Size

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Plug Connection Method

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Compliant with Exemptions

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DFARS Specialty Metals

Compliant

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Export Control Classification Number (ECCN)

REACH

Head Diameter

Height

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Knockout Trade Size

792 Products

Building and Machinery Hardware

Protective Plugs

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

198 products

Protective Caps

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

84 products

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

28 products

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

14 products

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

1 product

Electrical

Electrical Enclosure Plugs

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

55 products

Electrical Connector Caps

Protect data connectors when not in use

35 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

Press-Fit Nuts

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

2 products

Retaining Rings

Hold components on a shaft

25 products

Standoff Caps

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

66 products

Fluid Handling

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

180 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

69 products

Containers, Storage, and Furniture

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

2 products