Stainless Steel Plugs | McMaster-Carr

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Product Family

Countertop Trash Chutes

Electrical Contact Installation Tools

Electrical Enclosure Drain Vents

Electrical Enclosure Drains

Electrical Enclosure Plugs

System of Measurement

Pipe Size

Fitting Type

Thread Type

UN/UNF (SAE Straight)

Drive Style

Tamper-Resistant Torx

Pipe Material

304 Stainless Steel

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

Alloy 20 Stainless Steel

Shape

Thread Size

For Use With

Alcohol-Based Solvents

Gender

Maximum Pressure @ Temperature

Length

Pressure Class

Body Shape

Flange Material

304/304L Stainless Steel

316 Stainless Steel

316/316L Stainless Steel

Alloy 20 Stainless Steel

Drive Size

Fitting Connection

Pipe Schedule

Specifications Met

Dash Size

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

6,258 Products

Fluid Handling

Pipe Plugs

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

425 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

228 products

Pipe Flanges

Bolt together with a gasket to create an access point within a line

89 products

Tube Fittings

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

290 products

Hose Fittings

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

271 products

Hose

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

42 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

128 products

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

12 products

Breather Vents

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

35 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

24 products

Sights

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

82 products

Heating Elements

Turn electrical current into heat

152 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

435 products

Hex Head Screws

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

134 products

Rounded Head Screws

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

271 products

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

241 products

Tapping Screws

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

59 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

36 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

2,183 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

Electrical Power, Networking, and Controlling

Electrical Enclosure Plugs

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

12 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

73 products

Electrical Enclosure Drains

Release moisture to keep components dry

2 products

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

4 products

Cable Entry Panels

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

16 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

52 products

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

12 products

Breakaway Connectors

If pulled or stressed, these disconnect without damaging cables and equipment

3 products

Mini Receptacles

Install in walls and panels and pair with plugs to send power and signal

21 products

Metric Circular Connector Caps

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

5 products

ix Industrial Sockets

Pair with plugs to add ix Industrial connections to printed circuit boards

6 products

Mini Connector Caps

Shield mini connectors when they're not in use

6 products

Metric Circular Receptacles

Install in walls and panels and pair with plugs to make metric connections

25 products

USB Sockets

Pair with plugs to make USB connections

6 products

Wall Plates

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

38 products

Distribution Bars

Route electricity within switchboards and battery banks; also known as bus bars

22 products

Metric Circular Cords

Send power and control signals to equipment with metric connections

8 products

Power Cords

Connect equipment and devices to a power source

2 products

Breakaway Cords

Disconnect if pulled to prevent stress on cord

6 products

Ethernet Cords

Send data between computers, printers, servers, and switches

2 products

Mini Cords

Often used to send power and control signals to automated systems, motors, and pumps

18 products

USB Cords

Transfer data between computers, printers, and mobile devices

10 products

Electrical Contact Installation Tools

Add pin-and-sleeve contacts to connectors

4 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

24 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

55 products

Strut Channel Plugs

Plug strut channel ends to protect from sharp edges

4 products

Containers, Storage, and Furniture

Drum Plug Adapters

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

1 product

Drum Plugs

Seal drum lid openings

7 products

Lubricating

Grease Fittings

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

73 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

Measuring and Inspecting

Test Lead Tips

Adapt Fluke test leads to perform electrical tests in tight spaces

1 product

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

5 products

Sealing

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

6 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