3/8"-16 Helicoils | McMaster-Carr

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System of Measurement

Helical Insert Style

Installed Length

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Thread Direction

For Tap Type

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UNC

Military Specification

For Insert Thread Size

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Tensile Strength

DFARS Specialty Metals

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Compliant with Exemptions

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Export Control Classification Number (ECCN)

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Chamfer Type

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For Insert Thread Type

UNC

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45 Products

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

31 products

Threaded Insert Installation Tools

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

6 products

Threaded Insert Removal Tools

Turn counterclockwise to extract helical inserts

3 products

Fabricating and Machining

Taps

Cut internal threads for fasteners, pipe, conduit, and more

3 products

Measuring and Inspecting

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

2 products