5/8"-18 Reducers | McMaster-Carr

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System of Measurement

Fitting Type

Material

Stainless Steel

Gender

Thread Type

UN/UNF (SAE 45°)

Tube OD

Fitting Connection

Flare Style

Threaded Insert Type

Tube Material

Shape

For Tap Thread Size

For Use With

Installed Length

0.25" to 0.499"

Length

Specifications Met

Thread Direction

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Minimum Temperature

-199° F to -50° F

Maximum Pressure @ Temperature

650 psi @ 72° F

750 psi @ 72° F

1,000 psi @ 72° F

Thread Spacing

Hex Length

How can we improve?

65 Products

Fluid Handling

Tube Fittings

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

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

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