M18 Couplings | McMaster-Carr

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System of Measurement

Thread Size

Fitting Type

Thread Type

UN/UNF (SAE Straight)

Gender

Thread Pitch

Material

Stainless Steel

Shape

Tube OD

Fitting Connection

Quick Disconnect

Spec Image

For Use With

Hydraulic Fluid

Hydraulic Fluid (Petroleum Based)

Maximum Pressure @ Temperature

125 psi @ 72° F

145 psi @ 72° F

300 psi @ 72° F

350 psi @ 72° F

1,080 psi @ 72° F

2,300 psi @ 72° F

3,000 psi @ 72° F

3,500 psi @ 72° F

4,000 psi @ 72° F

4,500 psi @ 72° F

5,500 psi @ 72° F

5,800 psi @ 72° F

6,000 psi @ 72° F

Connects To

ID

Pipe Size

Length

Specifications Met

Dash Size

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Hose ID

REACH

OD

Finish

Black Zinc Plated

Threading

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61 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 Fittings

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

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Power Transmission

Rod Alignment Couplers

Rod Alignment Couplers

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

Rod Ends

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

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