M20 Couplings | McMaster-Carr

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Stainless Steel

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Metric Rounded Trapezoidal

Metric Trapezoidal

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Externally Threaded

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Partially Threaded

Threaded on Both Ends

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Hydraulic Fluid

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112 Products

Fluid Handling

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Hose Fittings

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

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Power Transmission

Rod Ends

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

Connecting Rods

Connecting Rods

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

Rod Alignment Couplers

Rod Alignment Couplers

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

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Electrical

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)