M12 Couplings | McMaster-Carr

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Metric Rounded Trapezoidal

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Number of Poles

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Threaded on Both Ends

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DFARS Specialty Metals

Compliant

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

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REACH

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Export Control Classification Number (ECCN)

2B999

EAR99

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Compliant

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Electrical Connection Coding

Thread Length

Width

Specifications Met

Housing Thread Size

Shank Thread Size

874 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

15 products

Thread Adapters

Join threads of a different type, size, and gender

471 products

Threaded Rod Collars

Hold and position parts on a threaded rod

2 products

Standoffs

Separate, position, or connect components in assemblies

2 products

Fluid Handling

Pipe and Fittings

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

26 products

Tube Fittings

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

46 products

Hose Fittings

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

30 products

Manual On-Off Valves

Start and stop flow through a line

8 products

Electrical Power, Networking, and Controlling

Metric Circular Connectors

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

111 products

Power Receptacles

Install in a wall or panel to transmit power to plugs or sockets

2 products

Conduit and Fittings

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

8 products

Power Transmission

Rod Ends

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

93 products

Connecting Rods

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

32 products

Precision Lead Screw Nuts

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

5 products

Rod Alignment Couplers

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

2 products

Lead Screw Nuts

Mate with lead screws to move components in a straight line

3 products

Lubricating

Grease Fitting Adapters

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

1 product