1⁄4"-28 Threaded Inserts

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System of Measurement

Threaded Insert Type

For Tap Thread Size

Material

Installed Length

For Use In

End Type

For Tap Type

Thread Type

Helical Insert Type

Thread Direction

Military Specification

Drill Bit Size

Key-Locking Insert Wall Type

Extra Thick

Thick

Thin

Number of Locking Keys

Thread Spacing

Thread Insert Style

RoHS

Compliant with Exemptions

Specifications Met

Tensile Strength

40,000 psi to 99,999 psi

100,000 psi to 119,999 psi

120,000 psi or greater

Not Rated

Thread Fit

Unified Standard Class 1B

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Finish

Zinc Yellow-Chromate Plated

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

EAR99

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197 Products

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

86 products

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

7 products

Rivet-Mount Nuts

Add threads in hard-to-reach areas and materials that are too thin to be tapped

8 products

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

7 products

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

8 products

Weld Nuts

Weld to metal surfaces to add permanent threads

12 products

Socket Nuts

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

2 products

Threaded Insert Installation Tools

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

43 products

Heat-Set Insert Tips

Attach to soldering irons to heat inserts for installing them in or removing them from plastic parts

2 products

Threaded Insert Removal Tools

Turn counterclockwise to extract helical inserts

5 products

Measuring and Inspecting

Plug Gauges

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

2 products