M12 Couplings | McMaster-Carr

Filter by

System of Measurement

Thread Size

Material

Gender

Thread Pitch

Thread Type

Metric Rounded Trapezoidal

UN/UNF (SAE Straight)

Length

Shape

Pitch

Fitting Type

Number of Poles

Nut Type

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Electrical Connection Coding

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

REACH

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

Hex Length

Housing Thread Size

Threading

Threaded on Both Ends

Specifications Met

Fed. Spec. QQ-A-200/8

Thread Length

Tube OD

869 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

Standoffs

Separate, position, or connect components in assemblies

2 products

Threaded Rod Collars

Hold and position parts on a threaded rod

2 products

Fluid Handling

Pipe Straights

Join lengths of pipe to send contents in one direction

13 products

Pipe Plugs

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

13 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

On-Off Valves

Start and stop flow through a line

8 products

Electrical Power, Networking, and Controlling

Metric Circular Adapters

Join connectors of different sizes, configurations, or types

17 products

Metric Circular Sockets

Pair with plugs to make metric connections

18 products

Metric Circular Plugs

Pair with sockets or receptacles to make metric connections

18 products

Metric Circular Receptacles

Install in walls and panels and pair with plugs to make metric connections

55 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 Alignment Couplers

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

2 products

Precision Lead Screw Nuts

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

5 products

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

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