M18 Inserts | McMaster-Carr

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System of Measurement

Threaded Insert Type

Thread Pitch

For Tap Thread Size

Helical Insert Type

Thread Direction

Material

18-8 Stainless Steel

Installed Length

0.25" to 0.499"

10 mm to 19.9 mm

20 mm to 24.9 mm

25 mm or greater

For Tap Type

Thread Type

Thread Spacing

For Use In

Drill Bit Size

Nut Type

End Type

Key-Locking Insert Wall Type

Thread Fit

Metric Class 4H5H

Metric Class 6H

REACH

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

DFARS Specialty Metals

For Tap Thread Pitch

Number of Inserts Included

OD

Tensile Strength

50,000 psi to 99,999 psi

100,000 psi or greater

How can we improve?

33 Products

Fastening and Joining

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Quick-Release Pin Receptacles

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

Socket Nuts

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

Threaded Insert Removal Tools

Threaded Insert Removal Tools

Turn counterclockwise to extract helical inserts

Threaded Insert Installation Tools

Threaded Insert Installation Tools

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

Building and Machinery Hardware

Protective Plugs

Protective Plugs

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

Fabricating and Machining

Taps

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

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

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