Aluminum Threaded Pipe | McMaster-Carr

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About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Pipe and Pipe Fittings

Standard-Wall Aluminum
Threaded Pipe Nipples and Pipe

Typically used with low-pressure aluminum threaded 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.

Low-Pressure Aluminum Threaded Pipe Flanges

Also known as Pressure Class 125 flanges, these are for use in low-pressure applications. Flanges are aluminum, which is lightweight with good corrosion resistance.

Thick-Wall Aluminum Threaded
Pipe Nipples and Pipe

Typically used with high-pressure aluminum threaded pipe fittings.

High-Pressure Aluminum Threaded Pipe Fittings

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

Medium-Pressure Aluminum Threaded Pipe Fittings

Designed for medium-pressure applications, these fittings have better strength than our low-pressure aluminum pipe fittings.

Miniature Medium-Pressure
Aluminum Threaded Pipe Fittings

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

Aluminum Quick-Connect Pipe
Fittings for Compressed Air

Twist these fittings onto aluminum pipe for quick, sealed connections—no threading, soldering, or welding necessary. Use them to build a compressed air system in half the time it would take to build a copper or steel system.

Thick-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 80 pipe. With thicker, stronger walls than standard-wall fittings, they can handle heavy duty supply applications, such as water processing, wastewater treatment, and irrigation.

Standard-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 40 plastic pipe—they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.

Pipe and Pipe Fittings

Standard-Wall AluminumThreaded Pipe Nipples and Pipe

Low-Pressure Aluminum Threaded Pipe Fittings

Low-Pressure Aluminum Threaded Pipe Flanges

Thick-Wall Aluminum ThreadedPipe Nipples and Pipe

High-Pressure Aluminum Threaded Pipe Fittings

Medium-Pressure Aluminum Threaded Pipe Fittings

Miniature Medium-PressureAluminum Threaded Pipe Fittings

Aluminum Quick-Connect PipeFittings for Compressed Air

Thick-Wall Plastic Pipe Fittings for Water

Standard-Wall Plastic Pipe Fittings for Water

Standard-Wall Aluminum
Threaded Pipe Nipples and Pipe

Thick-Wall Aluminum Threaded
Pipe Nipples and Pipe

Miniature Medium-Pressure
Aluminum Threaded Pipe Fittings

Aluminum Quick-Connect Pipe
Fittings for Compressed Air