Stainless Steel Plugs | McMaster-Carr

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304 Stainless Steel

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Alloy 20 Stainless Steel

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304-304L Stainless Steel

316 Stainless Steel

316-316L Stainless Steel

Alloy 20 Stainless Steel

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For Use With

Alcohol-Based Solvents

Maximum Pressure @ Temperature

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Specifications Met

Federal Specification

Maximum Steam Pressure @ Temperature

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

5,490 Products

Fluid Handling

Pipe Plugs

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

373 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

202 products

Pipe Flanges

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

89 products

Tube End Plugs

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

61 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

197 products

Tube Fittings

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

31 products

Hose Fittings

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

239 products

Hose

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

18 products

Hose End Caps

Cover the ends of hose to keep out dirt and debris

18 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

24 products

Breather Vents

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

1 product

Sights

Observe and monitor the contents of pipes, tanks, and other containers

70 products

Fastening and Joining

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

351 products

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

261 products

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

89 products

Flat Head Screws

Fit in countersunk holes for a flush finish

228 products

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

56 products

Wood Screws

Fasten material to wood or pieces of wood to each other

4 products

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

Threaded Inserts

Create new threads or repair stripped threads

1,670 products

Standoff Caps

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

1 product

Fabric Snaps

Join soft, heavy fabrics such as leather and canvas

20 products

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

1 product

Retaining Rings

Hold components on a shaft

4 products

Electrical

Electrical Enclosure Plugs

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

12 products

Electrical Enclosure Drains

Release moisture to keep components dry

2 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

73 products

Cable Entry Panels

Pass multiple cords into an enclosure while sealing out moisture, dust, and other contaminants

10 products

Wall Plates

Cover switches and outlets for a finished look or to close them off when not in use

38 products

Electrical Connector Caps

Protect data connectors when not in use

10 products

Electrical Contact Installation Tools

Add or remove pin-and-sleeve contacts in connectors

8 products

Wire Stripper Crimpers

Strip wire and crimp connectors with one tool

3 products

Building and Machinery Hardware

Protective Plugs

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

20 products

Protective Caps

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

20 products

Countertop Trash Chutes

Finish the hole over a waste container

8 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

32 products

Strut Channel Framing and Fittings

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

4 products

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

4 products

Drum Plug Adapters

Screw into plastic drum openings to replace threads that can become damaged with frequent use

1 product

Lubricating

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

72 products

Grease Fitting Cleaning Tools

Flush out old grease, dirt, and debris from clogged fittings

1 product

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

5 products

Grease Fitting Junction Blocks

Send different types and amounts of grease from multiple grease fittings to lubricate several points

3 products

Facility and Grounds Maintenance

Sink Drain Strainers

Catch debris to prevent clogs and plug drains to fill sinks

6 products

Sink Drains

Empty liquids from sinks into sewer lines

9 products

Sealing

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

6 products