DIN Pipe Fittings | McMaster-Carr

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DIN Size

Thread Type

UN/UNF (SAE Straight)

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System of Measurement

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For Use With

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Tube OD

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Export Control Classification Number (ECCN)

REACH

DFARS Specialty Metals

Exempt

Electrical Connection

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1,386 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.

Pipe and Fittings

Iron and Steel Threaded Pipe and Fittings

Extreme-Pressure Iron and Steel Threaded Pipe Fittings

Our strongest iron and steel threaded fittings withstand pressures up to 7,500 psi

99 products

Low-Pressure Iron and Steel Threaded Pipe Fittings

For pressures up to 300 psi

70 products

High-Pressure Iron and Steel Threaded Pipe Fittings

Strong enough for pressures up to 6,000 psi

2 products

Stainless Steel Threaded Pipe and Fittings

Extreme-Pressure Stainless Steel Threaded Pipe Fittings

Our strongest stainless steel threaded fittings withstand pressures as high as 15,000 psi

40 products

Low-Pressure Stainless Steel Threaded Pipe Fittings

For pressures up to 500 psi

44 products

Plastic Pipe and Fittings

Standard-Wall Plastic Pipe Fittings for Water

The industry standard for low-pressure water lines; also known as Schedule 40

137 products

CPVC Pipe Fittings for Chemicals

Withstand salt solutions, acids, and other harsh substances

26 products

Thick-Wall Plastic Pipe Fittings for Water

Withstand heavy duty applications, such as water processing; also known as Schedule 80

16 products

CPVC Pipe Nipples and Pipe for Chemicals

Withstand salt solutions, acids, and other harsh substances; also known as Schedule 80

7 products

Standard-Wall Plastic Pipe Nipples and Pipe for Water

The industry standard for low-pressure water lines; also known as Schedule 40

17 products

UV-Resistant Polypropylene Pipe Nipples and Pipe for Chemicals

Withstand sunlight as well as acids, solvents, and other chemicals; also known as Schedule 80

5 products

Aluminum Threaded Pipe and Fittings

Low-Pressure Aluminum Threaded Pipe Fittings

For pressures up to 250 psi

29 products

Iron and Steel Unthreaded Pipe and Fittings

Low-Pressure Iron and Steel Unthreaded Pipe Flanges

Create an access point in lines up to 230 psi

12 products

Brass and Bronze Threaded Pipe and Fittings

High-Pressure Brass and Bronze Threaded Pipe Fittings

Strong enough for pressures up to 3,900 psi

5 products

Precision High-Pressure Brass and Bronze Threaded Pipe Fittings

The tightest tolerances of our brass pipe fittings; also known as instrumentation fittings

2 products

Other Products

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

262 products

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

24 products

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

155 products

Solenoid On-Off Valves

A solenoid withstands rapid cycling for applications with frequent opening and closing

166 products

Air-Actuated On-Off Valves

Operate on compressed air to start and stop flow faster than motor-driven valves

60 products

Conduit

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

9 products