NPT Inserts | McMaster-Carr

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System of Measurement

Pipe Size

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

Cut Type

External Threading

Internal Threading

Material

18-8 Stainless Steel

Silicone Rubber

Threaded Insert Type

For Tap Type

Profile Shape

ID

0.116" to 0.182"

0.24" to 0.295"

0.325" to 0.367"

0.361" to 0.418"

0.419" to 0.485"

29/64" to 31/64"

0.471" to 0.536"

0.55" to 0.631"

0.58" to 0.667"

0.64" to 0.727"

Drill Bit Size

OD

0.111" to 0.177"

0.235" to 0.302"

0.298" to 0.365"

0.356" to 0.422"

0.468" to 0.545"

0.613" to 0.693"

0.687" to 0.785"

0.74" to 0.849"

Export Control Classification Number (ECCN)

Shape

RoHS

REACH

DFARS Specialty Metals

Thread Size

For Use On

Stainless Steel

Color

Cutting Direction

Finish

Titanium Aluminum Nitride (TiAlN) Coated

Thread Direction

For Use With

Height

Compatible Connection

Straight-Thread Pipe Fittings

Tapered-Thread Pipe Fittings

Unthreaded Pipe Fittings

Passivation

How can we improve?

144 Products

Fastening and Joining

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Threaded Insert Tools

Threaded Insert Tools

Install or extract helical, key-locking, slotted-drive, and other threaded inserts

Fabricating and Machining

Lathe Tool Inserts

Lathe Tool Inserts

Pair with lathes to add cuts and grooves to workpieces

Building and Machinery Hardware

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Strut Channel Nuts

Strut Channel Nuts

Fasten on threaded rod to connect components to strut channel

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