Screw Plugs | McMaster-Carr

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Chicago Fire Department

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Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

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3,235 Products

Fluid Handling

Pipe Plugs

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

1,367 products

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

284 products

Pipe Nipples and Pipe

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

76 products

Pipe Flanges

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

4 products

Hose and Hose Fittings

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

5 products

Breather Vents

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

75 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

10 products

Pressure-Relief Valves

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

17 products

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

5 products

Building and Machinery Hardware

Protective Caps

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

20 products

Protective Plugs

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

179 products

Electrical

Electrical Enclosure Plugs

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

29 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

35 products

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

970 products

Standoff Caps

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

66 products

Lubricating

Grease Fittings

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

1 product

Safety Equipment

Fire Hydrant Plugs

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

3 products

Containers, Storage, and Furniture

Drum Plug Caps

Access inside drums to fill them

1 product

Drum Plugs

Seal drum lid openings

19 products

Drum Locks

Secure drum lids and openings to prevent tampering

1 product

Sealing

Drum Plug Gaskets

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

7 products

Facility and Grounds Maintenance

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products