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	Pipe Size Pipe Size

1/8

1/4

	Thread Type Thread Type

NPT

BSPT

	Threading Threading

Threaded on Both Ends

Fully Threaded

Unthreaded

Threaded on One End

	Schedule Schedule


40	80

160

	Type Type


Pipe	Adapter

	Length Length

	Connection Style Connection Style

	For Use With For Use With

	ID ID

	Wall Thickness Wall Thickness

	Construction Construction

Welded

Seamless

	OD OD

	Specifications Met Specifications Met

ASTM

ANSI/ASME

DIN

	Dash Size Dash Size

	Thread Direction Thread Direction

Left Hand

Right Hand

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1,461 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.

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Also known as Schedule 40, this steel pipe is designed for low-pressure applications.

Standard-Wall Steel Threaded
Pipe Nipple and Pipe Assortments

Assortments contain threaded pipe in various lengths.

Standard-Wall Steel Pipe Nipples
and Pipe with Right-Hand
and Left-Hand Threads

Pipe has clockwise (right-hand) threads on one end and counterclockwise (left-hand) threads on the other end. When you use a wrench to turn, connections on both ends tighten at the same time.

Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Typically used with medium-pressure iron and steel threaded pipe fittings. Also known as Schedule 80.

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Typically used with high-pressure iron and steel threaded pipe fittings. Also known as Schedule 160.

Standard-Wall Steel Unthreaded
Pipe Nipples and Pipe

Typically used with standard-wall and low-pressure iron and steel unthreaded pipe fittings. Also known as Schedule 40.

Standard-Wall Grooved-End
Steel Pipe Nipples and Pipe

This steel pipe has grooved ends that connect to fittings with a clamp (sold separately) for an easy way to install piping systems.

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How to Identify and Measure Fittings

Iron and Steel Pipe and Pipe Fittings

Standard-Wall Steel ThreadedPipe Nipples and Pipe

Standard-Wall Steel ThreadedPipe Nipple and Pipe Assortments

Standard-Wall Steel Pipe Nipplesand Pipe with Right-Hand and Left-Hand Threads

Thick-Wall Steel ThreadedPipe Nipples and Pipe

Extra-Thick-Wall Steel ThreadedPipe Nipples and Pipe

Standard-Wall Steel UnthreadedPipe Nipples and Pipe