M20 Couplings | McMaster-Carr

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Metric Rounded Trapezoidal

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Threaded on Both Ends

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Right Hand and Left Hand

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159 Products

Fluid Handling

Pipe and Fittings

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

23 products

Hose Fittings

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

4 products

Tube Straights

Join lengths of tube to send contents in one direction

1 product

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

11 products

Power Transmission

Precision Lead Screw Nuts

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

7 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

Connecting Rods

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

7 products

Rod Ends

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

50 products

Electrical Power, Networking, and Controlling

Conduit and Fittings

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

17 products

Metric Circular Receptacles

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

19 products