Brass Tube Fitting Caps | McMaster-Carr

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	Material Material

Brass

Bronze

	For Pipe Material For Pipe Material

Brass

	Type Type


Cap	Plug

Flange	Adapter

Connector

	Pipe Size Pipe Size

	Thread Type Thread Type

UN/UNF (SAE Straight)

Universal

	Drive Style Drive Style


External Hex	Hex

External Square	Square

Slotted

	Shape Shape

	Cap/Plug
	Straight

	For Use With For Use With

	Connection Style Connection Style

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Maximum Pressure Maximum Pressure

	For Tube OD For Tube OD

	Gender Gender

Female

Male

	Connection Type Connection Type


Tube	Pipe

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Size Size

	Plug Construction Plug Construction

Solid

Hollow

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	For Tube Material For Tube Material

	Specifications Met Specifications Met

	Finish Finish

Black Zinc Plated

Chrome Plated

Nickel Plated

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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545 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Yor-Lok Fittings for Copper Tubing

Precision Compression Fittings for Copper Tubing

Also known as instrumentation fittings, these are made to tighter tolerances than standard compression fittings. They are compatible with Parker CPI fittings.

Brass Push-to-Connect Fittings for Copper Tubing

Choose these metal fittings when you need better durability than our plastic push-to-connect fittings.

45° Flared Fittings for Copper and Brass Tubing

No sleeve is required to assemble these fittings, which makes for a faster, more convenient installation compared to 37° flared fittings. They are also known as refrigeration and SAE fittings.

Tube Fittings for Plastic and Rubber Tubing—Air and Water

Push-to-Connect Tube Fittings for Air

Nickel-Plated Brass Push-to-Connect
Tube Fittings for Air

Made of nickel-plated brass, these fittings have better corrosion resistance than unplated brass fittings.

Brass Low-Pressure Barbed
Tube Fittings for Air and Water

Fittings have good corrosion resistance.

Brass Quick-Turn Tube Couplings for Air

These brass couplings have good corrosion resistance.

High-Pressure Quick-Disconnect Tube Couplings for Air

Couplings can handle pressures up to 250 psi.

Brass Quick-Disconnect Tube Couplings for Air

Made of brass, these couplings are more durable than plastic couplings.

Brass Compression Tube Fittings for Air and Water

A single sleeve (ferrule) compresses the tubing as you tighten the nut on these fittings, creating a strong seal. They are brass for good corrosion resistance.

Low-Profile High-Pressure
Quick-Disconnect Tube Couplings for Air

With no latch, these couplings have a compact design to fit in small spaces. They can handle pressures up to 700 psi.

Brass and Bronze Threaded Pipe and Pipe Fittings

Low-Pressure Plated Brass Threaded Pipe Fittings

Used in low-pressure pipe lines, these brass fittings have a plating that makes them shiny and improves corrosion resistance.

Miniature Low-Pressure Brass Threaded Pipe Fittings

Less than an inch in length, these miniature fittings work well in low-pressure pipe lines that are tight on space.

Low-Pressure Brass and Bronze Threaded Pipe Fittings

Use these fittings in low-pressure flow applications. They have good corrosion resistance.

Low-Pressure Brass Threaded
Pipe Fittings with Sealant

The male threads on these brass fittings have a sealant applied for extra protection against leaks. Also known as Pressure Class 125 fittings, they are built for use in low-pressure applications.

High-Pressure Plated Brass Threaded Pipe Fittings

The plating on these brass fittings creates a shiny finish and provides extra protection in corrosive environments. Fittings have the strength to handle high-pressure applications.

High-Pressure Brass Threaded
Pipe Fittings for Drinking Water

Use these heavy-duty brass fittings for high-pressure drinking water applications.

Medium-Pressure Brass and
Bronze Threaded Pipe Fittings

Choose these fittings when you need better strength than our low-pressure brass and bronze pipe fittings.

Precision Extreme-Pressure
Brass Threaded Pipe Fittings

Also known as instrumentation fittings, these have the most precise threads and the tightest tolerances of all the brass pipe fittings we offer.

High-Pressure Brass Threaded Pipe Fittings

These brass fittings have the strength to handle high-pressure applications.

High-Pressure Brass Threaded
Pipe Fittings with Sealant

Not only do these brass fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks.

Medium-Pressure Plated Brass Threaded Pipe Fittings

Plated with nickel, these brass fittings resist rust better than steel and unfinished brass fittings. Select them when you need more strength in corrosive environments to handle higher pressures than our low-pressure fittings.

Extreme-Pressure Brass Threaded Pipe Fittings

Extreme pressures are no problem for these heavy-duty brass fittings.

Brass and Bronze Unthreaded Pipe and Pipe Fittings

Brass and Bronze Unthreaded Pipe Flanges

Bolt these flanges to another same-size flange with a gasket to create an access point within a pipe line. They are also known as Silbraze flanges.

Bronze Unthreaded Pipe Fittings

Also known as Silbraze fittings.

Cleanout Plugs

Close off your drain cleanout pipe with these plugs.