5/8"-18 Inserts | McMaster-Carr

Filter by

System of Measurement

Thread Size

Threaded Insert Type

For Tap Thread Size

Material

Installed Length

Thread Direction

For Tap Type

Thread Pitch

Thread Type

Helical Insert Type

For Use In

Thread Spacing

End Type

Tensile Strength

50,000 psi to 99,999 psi

100,000 psi or greater

Drill Bit Size

Nut Type

Key-Locking Insert Wall Type

Extra Thick

Thick

Number of Locking Keys

Thread-Locking Insert Wall Type

Thick

Thin

Military Specification

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Drive Style

123 Products

Fastening and Joining

Threaded Insert Installation Tools

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

10 products

Threaded Insert Removal Tools

Turn counterclockwise to extract helical inserts

1 product

Threaded Inserts

Create new threads or repair stripped threads

32 products

Weld Nuts

Weld to metal surfaces to add permanent threads

26 products

Socket Nuts

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

1 product

Building and Machinery Hardware

Protective Plugs

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

6 products

Protective Caps

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

6 products

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

15 products

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

19 products

Fabricating and Machining

Taps

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

3 products