Threaded Plugs | McMaster-Carr

Filter by

Material

System of Measurement

Pipe Size

Thread Type

Chicago Fire Department

Thread Size

Fitting Type

Drive Style

Gender

For Use With

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

Pipe Material

Shape

Length

Fitting Connection

Maximum Pressure @ Temperature

Thread Pitch

Flange Material

Body Shape

Threaded Insert Type

Drive Size

Pipe Schedule

Connects To

Finish

Zinc Phosphate Coated

Zinc Plated

RoHS

Compliant

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

9,746 Products

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

3,163 products

Hose Fittings

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

885 products

Hose End Caps

Cover the ends of hose to keep out dirt and debris

9 products

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

126 products

Breather Vents

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

93 products

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

17 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

31 products

Sights

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

172 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

5 products

Building and Machinery Hardware

Protective Plugs

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

179 products

Protective Caps

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

40 products

Electrical

Electrical Enclosure Plugs

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

29 products

Safety Equipment

Fire Hydrant Caps

Pair with a hook-style spanner wrench to quickly cover and uncover fire hydrants

6 products

Fire Hydrant Plugs

Pair with a hook-style spanner wrench to quickly seal fire hydrants and washdown equipment

3 products

Measuring and Inspecting

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

548 products

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

70 products

Hose Coupling Size-Identification Kits

Match your hose coupling to one of the plugs to determine its size without measuring

1 product

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

3,056 products

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

13 products

Standoff Caps

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

66 products

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

19 products

Drum Locks

Secure drum lids and openings to prevent tampering

1 product

Drum Plug Caps

Access inside drums to fill them

4 products

Lubricating

Grease Fittings

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

323 products

Grease Fitting Adapters

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

41 products

Grease Fitting Installation Tools

Tap to insert grease fittings in unthreaded holes

2 products

Oil Fittings

Install in engine blocks and other machinery to pour in oil while keeping dust out

17 products

Material Handling

Valve Stem Caps

Keep dust and debris out of tire valves

2 products

Sealing

Drum Plug Gaskets

Form a tighter seal in drum openings than with a drum plug alone

7 products