5/8"-18 Couplings | McMaster-Carr

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System of Measurement

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Material

Oil-Embedded Bronze

Stainless Steel

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Thread Type

Metric Rounded Trapezoidal

UN/UNF (SAE 45°)

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Length

Shape

For Use With

Hydraulic Fluid

Fitting Connection

Push to Connect

Nut Type

Externally Threaded

Tube OD

Connects To

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Threading

Partially Threaded

Threaded on Both Ends

Thread Direction

Right Hand and Left Hand

Shank Thread Size

Flare Style

Internal Flared

ID

Export Control Classification Number (ECCN)

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Tube Material

Polyurethane Rubber

Fastener Strength Grade/Class

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Compliant with Exemptions

DFARS Specialty Metals

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233 Products

Fluid Handling

Hose Fittings

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

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Tube Fittings

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

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Pipe and Pipe Fittings

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

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 Screws and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

Building and Machinery Hardware

Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

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