McMaster-Carr

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	Specifications Met Specifications Met

ANSI/ASME

ANSI/MSS

	System of Measurement System of Measurement

Inch

Metric

	ID ID

	OD OD

	Material Material

	Length Length

	Type Type


Bushing	Reducing Adapter

	Thread Size Thread Size

10-32

1/4"-28

M10

	Pipe Size Pipe Size

1 1/2
2
2 1/2
3
3 1/2
4
6

	Thread Type Thread Type

	Shape Shape

	Straight

	For Use With For Use With

	Finish Finish

Black Coated

Chrome Plated

Galvanized

	Connection Style Connection Style

Threaded

Socket Connect

Butt Weld

	Gender Gender

Female

Male

	For Pipe Material For Pipe Material

	Body Shape Body Shape

	Hex

	Construction Construction

Welded

	Maximum Pressure Maximum Pressure

	Wall Thickness Wall Thickness

	Class Class

125

150

3000

	Connection Type Connection Type

	Pipe

	For Pipe Schedule For Pipe Schedule


40	80

160

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625 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.

Low-Pressure Stainless
Steel Threaded Pipe Fittings

Use these corrosion-resistant fittings in a low-pressure pipe line.

Low-Pressure Stainless Steel
Threaded Pipe Fittings with Sealant

The male threads on these fittings have a sealant applied for extra leak protection.

Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

These fittings are made to tighter tolerances than other stainless steel pipe fittings. They are also known as instrumentation fittings.

Medium-Pressure Stainless
Steel Threaded Pipe Fittings

Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.

High-Pressure
Socket-Connect Stainless
Steel Unthreaded Pipe Fittings

Socket-connect fittings are easier to weld than butt-weld fittings because the fitting doesn't need to align perfectly to the pipe. Slip the pipe into the socket and weld.

Iron and Steel Threaded Pipe and Pipe Fittings

Low-Pressure Iron and
Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Low-Pressure Cast Iron
Threaded Pipe Fittings

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.

Low-Pressure Galvanized Steel
Threaded Pipe Fittings with Sealant

The male threads on these fittings have a sealant applied for extra leak protection.

High-Pressure Iron and
Steel Threaded Pipe Fittings

These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.

High-Pressure Galvanized
Steel Threaded Pipe Fittings

A galvanized finish gives these fittings better corrosion resistance than our plain steel high-pressure fittings. Also known as Class 3000 fittings.

Compact Precision Extreme-Pressure
Steel Threaded Pipe Fittings

Made to tighter tolerances than other steel pipe fittings, these are also known as instrumentation fittings.

Brass and Bronze Threaded Pipe and Pipe Fittings

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 Class 125 fittings, they are built for use in low-pressure applications.

Low-Pressure Chrome-Plated
Brass Threaded Pipe Fittings

The polished chrome plating not only has a shiny appearance, but also improves corrosion resistance on these Class 125 fittings.

Extreme-Pressure Brass
Threaded Pipe Fittings

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

Aluminum Threaded Pipe and Pipe Fittings

Low-Pressure Aluminum
Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications.

High-Pressure Aluminum
Threaded Pipe Fittings

Also known as Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer.

Miniature Medium-Pressure
Aluminum Threaded Pipe Fittings

Their small size makes these miniature fittings a good choice for cramped, confined spaces.

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How to Identify and Measure Fittings

Stainless Steel Pipe and Pipe Fittings

Low-Pressure StainlessSteel Threaded Pipe Fittings

Low-Pressure Stainless SteelThreaded Pipe Fittings with Sealant

Precision Extreme-Pressure StainlessSteel Threaded Pipe Fittings

Medium-Pressure StainlessSteel Threaded Pipe Fittings

High-PressureSocket-Connect Stainless Steel Unthreaded Pipe Fittings

Iron and Steel Threaded Pipe and Pipe Fittings

Low-Pressure Iron andSteel Threaded Pipe Fittings

Low-Pressure Cast IronThreaded Pipe Fittings

FM-Approved Low-PressureCast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Low-Pressure Galvanized SteelThreaded Pipe Fittings with Sealant

High-Pressure Iron andSteel Threaded Pipe Fittings

High-Pressure GalvanizedSteel Threaded Pipe Fittings

Compact Precision Extreme-PressureSteel Threaded Pipe Fittings