3/8"-24 Couplings | McMaster-Carr

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System of Measurement

Thread Size

Material

Length

Gender

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Threading

Threaded on Both Ends

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Right Hand and Left Hand

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Metric Rounded Trapezoidal

UN/UNF (SAE Straight)

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Compliant with Exemptions

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DFARS Specialty Metals

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

Yes

REACH

Compliant

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Export Control Classification Number (ECCN)

Tube OD

474 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

19 products

Thread Adapters

Join threads of a different type, size, and gender

193 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

4 products

Threaded Rod Collars

Hold and position parts on a threaded rod

4 products

Fluid Handling

Hose Fittings

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

12 products

Tube Fittings

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

41 products

Rotary Joints

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

1 product

Pipe Plugs

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

4 products

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

2 products

Power Transmission

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

87 products

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

75 products

Rod Alignment Couplers

Reduce wear on bearings and seals by flexing when the cylinder and load aren't precisely even

4 products

Precision Lead Screw Nuts

Pair with precision lead screws for accurate starts and stops in your assembly

5 products

Building and Machinery Hardware

Mechanical Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

6 products