Metric Tube Fittings | McMaster-Carr

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System of Measurement

Thread Type

UN/UNF (SAE Straight)

Tube OD

Shape

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Gender

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Material

Lithium/Calcium Blend

For Use With

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (10% Concentration)

Connects To

Fitting Type

Thread Size

Tube Material

Tube Stem OD

Release Ring Material

Tube Hardness Rating

Maximum Pressure @ Temperature

Tube ID

Release Type

Color

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

DFARS Specialty Metals

Compliant

Exempt

Export Control Classification Number (ECCN)

7,520 Products

Fluid Handling

Tube Fittings

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

4,780 products

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

98 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

99 products

Tube Supports

Slip into plastic and rubber tubing to prevent them from collapsing

31 products

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

67 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

67 products

Tube End Cap and Plug Kits

Cover or insert into the ends of tube fittings to keep out dirt and debris

1 product

Tube Fitting Rings

Prevent leaks at tubing connection points

6 products

Tube Fitting Sleeve and Nut Kits

Everything you need to create a tight seal between a metal tube and a Yor-Lok fitting

11 products

Tubing

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

11 products

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

14 products

Hose Fittings

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

1,394 products

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

1 product

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

289 products

Manifolds

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

114 products

Junction Blocks

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

7 products

On-Off Valves

Start and stop flow through a line

44 products

Check Valves

Permit flow in only one direction by closing when flow stops or reverses

5 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

2 products

Mufflers

Reduce noise and filter exhaust fumes

19 products

Filter Housings

Use with filter cartridges to remove particles from liquid

4 products

Pressure-Relief Valves

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

3 products

Lubricating

Grease Fitting Adapters

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

19 products

Grease Fittings

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

6 products

Power Transmission

Air Flow Check Valves

Open to allow air flow in one direction and close when flow stops or reverses

5 products

Communication

Tube Fitting Markers

Snap onto push-to-connect fittings to identify different tubing lines

3 products

Building and Machinery Hardware

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

9 products

Flush-Fit Framing Rails

Join flush-fit framing rails to build smooth stair and platform railings

1 product

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

15 products

Electrical Power, Networking, and Controlling

Conduit and Fittings

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

27 products

Sealing

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

39 products