Screw Plugs | McMaster-Carr

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Chicago Fire Department

UN/UNF (SAE Straight)

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Hot-Dipped Galvanized

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

Yes

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

3,423 Products

Fluid Handling

Pipe Plugs

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

1,544 products

Pipe Bushings

Connect two pipes of different diameters

49 products

Pipe

Join with fittings and additional lengths of pipe

76 products

Pipe Straights

Join lengths of pipe to send contents in one direction

124 products

Pipe Tees

Split or merge liquid flow paths

53 products

Pipe Elbows

Change the direction of flow when joining lengths of pipe

76 products

Pipe Flanges

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

5 products

Pipe Wyes

Split or merge liquid flow more gradually than tees

15 products

Pipe Traps

Create a seal that prevents the backflow of gas

6 products

Hose Fittings

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

5 products

Breather Vents

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

79 products

Pressure Test Plugs

Tighten onto equipment to check pressure without permanently installing a gauge

13 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 Plugs

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

229 products

Protective Caps

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

20 products

Electrical Power, Networking, and Controlling

Electrical Enclosure Plugs

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

29 products

Fastening and Joining

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

Socket Head Screws

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

35 products

Containers, Storage, and Furniture

Drum Plug Caps

Access inside drums to fill them

1 product

Drum Plugs

Seal drum lid openings

27 products

Drum Locks

Secure drum lids and openings to prevent tampering

1 product

Safety Equipment

Fire Hydrant Plugs

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

3 products

Lubricating

Grease Fittings

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

1 product

Facility and Grounds Maintenance

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Sealing

Drum Plug Gaskets

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

7 products