1/2"-20 Couplings | McMaster-Carr

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System of Measurement

Thread Size

Material

Length

Gender

Nut Type

Threading

Threaded on Both Ends

Thread Type

UN/UNF (SAE Straight)

Hex Length

Shape

Thread Length

Thread Direction

Right Hand and Left Hand

Width

Finish

Fastener Strength Grade/Class

Fitting Type

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

Yes

Export Control Classification Number (ECCN)

2B999

EAR99

RoHS

Compliant

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

REACH

Shank Thread Size

Hex Size

Shank Gender

606 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

15 products

Thread Adapters

Join threads of a different type, size, and gender

223 products

Standoffs

Separate, position, or connect components in assemblies

8 products

Threaded Rod Collars

Hold and position parts on a threaded rod

4 products

Power Transmission

Rod Alignment Couplers

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

4 products

Connecting Rods

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

79 products

Rod Ends

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

82 products

Precision Lead Screw Nuts

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

2 products

Fluid Handling

Tube Fittings

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

92 products

Pipe and Fittings

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

9 products

Hose Straights

Join lengths of hose to send contents in one direction

5 products

Electrical Power, Networking, and Controlling

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

45 products