Metal Finishing Plugs | McMaster-Carr

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Corrosion-Resistant Coated

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823 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

108 products

Strut Channel Plugs

Plug strut channel ends to protect from sharp edges

28 products

Slip-On Framing End Caps

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

14 products

Press-Fit Framing End Caps

Push into press-fit rails for a finished look that keeps out debris

1 product

Electrical Power, Networking, and Controlling

Electrical Enclosure Plugs

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

55 products

Coaxial Connector Caps

Terminate the end of an unused coaxial cable

2 products

Metric Circular Connector Caps

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

8 products

Mil. Spec. Connector Caps

Protect Mil. Spec. connectors when they're not in use

12 products

Mini Connector Caps

Shield mini connectors when they're not in use

13 products

Fluid Handling

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

207 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

95 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

Facility and Grounds Maintenance

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

2 products

Fastening and Joining

Press-Fit Nuts

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

2 products

Standoff Caps

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

66 products

Containers, Storage, and Furniture

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products