6-40 Helicoils | McMaster-Carr

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System of Measurement

Helical Insert Type

Thread Direction

Installed Length

Less than 0.25"

0.25" to 0.499"

Material

18-8 Stainless Steel

High-Speed Steel

Specifications Met

Thread Type

Drill Bit Size

Number of Inserts Included

For Insert Thread Size

Military Specification

For Use On

Stainless Steel

Passivation

Export Control Classification Number (ECCN)

RoHS

REACH

DFARS Specialty Metals

For Tap Type

For Use With

Helical Inserts

Screw-Locking Helical Inserts

Handle Style

Insert Tool Thread Type

Profile

Chamfer Type

Finish

For Relative Insert Length

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18 Products

Fastening and Joining

Threaded Insert Installation Tools

Threaded Insert Installation Tools

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

Threaded Insert Removal Tools

Threaded Insert Removal Tools

Turn counterclockwise to extract helical inserts

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Fabricating and Machining

Taps

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

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