Stainless Steel Plugs | McMaster-Carr

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UN/UNF (SAE Straight)

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Tamper-Resistant Torx

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Alcohol-Based Solvents

Shape

Body Shape

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Plug Construction

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Specifications Met

Federal Specification

OSHA Compliant 29 CFR 1910.219

Connects To

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

6,707 Products

Fluid Handling

Pipe Plugs

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

376 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

240 products

Pipe Flanges

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

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

209 products

Tube Fittings

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

78 products

Hose Fittings

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

267 products

Hose End Caps

Cover the ends of hose to keep out dirt and debris

84 products

Hose End Plugs

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

6 products

Hose

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

56 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

117 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

51 products

Drain Valves

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

11 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

70 products

Heating Elements

Turn electrical current into heat

159 products

Building and Machinery Hardware

Protective Plugs

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

70 products

Protective Caps

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

20 products

Grommets

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

44 products

Countertop Trash Chutes

Finish the hole over a waste container

8 products

Strut Channel Framing and Fittings

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

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

Electrical Enclosure Drain Vents

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

4 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

188 products

Cable Entry Panels

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

10 products

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

34 products

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

67 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

30 products

Wall Plates

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

38 products

Electrical Cords

Connect equipment and devices to a power supply

103 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

Distribution Bars

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

22 products

Wire Stripper Crimpers

Strip wire and crimp connectors with one tool

3 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

126 products

Flat Head Screws

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

242 products

Tapping Screws

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

62 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

43 products

Rivets

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

1 product

Fabric Snaps

Join soft, heavy fabrics such as leather and canvas

31 products

Retaining Rings

Hold components on a shaft

4 products

Drum Plug Wrenches

Install and remove screw-in drum plugs; also known as bung wrenches

1 product

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

4 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

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

Safety Equipment

Bearing Guards

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

6 products