R-Thread Pipe Fittings | McMaster-Carr

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Product Family

Breather Vents

Grease Fitting Adapters

Pipe Size Measuring Kits

Pressure-Relief Valves

Thread Type

UN/UNF (SAE Straight)

UNF

Universal

Inlet Thread Type

BSPT

System of Measurement

Pipe Size

Material

Fitting Type

Shape

Gender

For Use With

Fitting Connection

Tube OD

Connects To

Length

Pipe Material

Maximum Pressure @ Temperature

Pipe Schedule

Threading

Fully Threaded

Threaded on Both Ends

Flange Material

RoHS

Compliant with Exemptions

Thread Size

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

Body Shape

4,690 Products

Fluid Handling

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

1,937 products

Pipe Locknuts

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

2 products

Tube Fittings

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

1,837 products

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

487 products

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

59 products

Junction Blocks

Organize and separate multiple lines in a pipe system; air and fluid flow through the threaded holes

2 products

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

5 products

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

3 products

Manual On/Off Valves

Start and stop flow through a line

44 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

7 products

Lubricating

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

4 products

Grease Fittings

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

25 products

Building and Machinery Hardware

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

9 products

Measuring and Inspecting

Pipe Size Measuring Kits

Connect to pipe and fittings to determine their size without additional measuring tools

2 products