Threaded Caps | McMaster-Carr

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System of Measurement

Pipe Size

Material

Stainless Steel

Thread Type

Chicago Fire Department

Fitting Type

Reducing Adapter

Gender

Thread Size

Shape

Fitting Connection

Spec Image

Compression Clamp On

Spec Image

Spec Image

Quick Disconnect

Spec Image

Pipe Material

Stainless Steel

For Use With

Abrasive Materials

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

Pipe Schedule

Drive Style

External 12-Point

External Octagon

External Square

Flange Material

Stainless Steel

Length

Connects To

Maximum Pressure @ Temperature

10 psi @ 70° F

20 psi @ 70° F

25 psi @ 70° F

50 psi @ 70° F

60 psi @ 70° F

65 psi @ 70° F

75 psi @ 70° F

100 psi @ 70° F

125 psi @ 70° F

150 psi @ 70° F

180 psi @ 70° F

200 psi @ 70° F

250 psi @ 70° F

290 psi @ 70° F

360 psi @ 70° F

415 psi @ 70° F

500 psi @ 70° F

675 psi @ 70° F

Pressure Class

Color

Body Shape

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

Cap Type

Screw on for Fitting

Tube OD

How can we improve?

4,340 Products

Fluid Handling

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Plugs

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

Pipe Nipples and Pipe

Pipe Nipples and Pipe

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

Pipe Fittings

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

Pipe Flanges

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

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube End Cap and Plug Kits

Tube End Cap and Plug Kits

Cover or insert into the ends of tube fittings to keep out dirt and debris

Tube End Plugs

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

Hose and Hose Fittings

Hose and Hose Fittings

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

Breather Vents

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

Pressure-Relief Valves

Pressure-Relief Valves

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

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Sights

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

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Building and Machinery Hardware

Protective Caps

Protective Caps

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

Protective Plugs

Protective Plugs

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

Fastening and Joining

Cap Nuts

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

Standoff Caps

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

Electrical

Electrical Enclosure Plugs

Electrical Enclosure Plugs

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

Material Handling

Valve Stem Caps

Valve Stem Caps

Keep dust and debris out of tire valves

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

Drum Locks

Secure drum lids and openings to prevent tampering

Drum Plug Caps

Access inside drums to fill them

Safety Equipment

Fire Hydrant Caps

Fire Hydrant Caps

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

Fire Hydrant Plugs

Fire Hydrant Plugs

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

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Grease Fittings

Grease Fittings

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

Grease Fitting Installation Tools

Grease Fitting Installation Tools

Tap to insert grease fittings in unthreaded holes

Oil Fittings

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

Measuring and Inspecting

Hose Coupling Size-Identification Kits

Hose Coupling Size-Identification Kits

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

Sealing

Drum Plug Gaskets

Drum Plug Gaskets

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)