SAE J531 Pipe Fittings | McMaster-Carr

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208 Products

About Pipe and Fittings

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

Metal Pipe and Pipe Fittings

Premium Low-Pressure Stainless Steel
Threaded Pipe Fittings with Certification

Unlike other stainless steel fittings, these are made in the U.S.A. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition.

Low-Pressure Iron and Steel Threaded Pipe Fittings

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

Low-Pressure Iron and Steel
Threaded Pipe Fittings with Sealant

To prevent leaks in low-pressure lines, the male threads on these fittings have an acrylic sealant already applied for extra protection.

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 Iron and Steel
Threaded Pipe Fittings with Sealant

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

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.

Metal Pipe and Pipe Fittings

Premium Low-Pressure Stainless SteelThreaded Pipe Fittings with Certification

Low-Pressure Iron and Steel Threaded Pipe Fittings

Low-Pressure Iron and SteelThreaded Pipe Fittings with Sealant

Low-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Low-Pressure Galvanized Iron and SteelThreaded Pipe Fittings with Sealant

High-Pressure Brass Threaded Pipe Fittings

High-Pressure Brass ThreadedPipe Fittings with Sealant

Premium Low-Pressure Stainless Steel
Threaded Pipe Fittings with Certification

Low-Pressure Iron and Steel
Threaded Pipe Fittings with Sealant

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Low-Pressure Galvanized Iron and Steel
Threaded Pipe Fittings with Sealant

High-Pressure Brass Threaded
Pipe Fittings with Sealant