1/4"-28 Inserts | McMaster-Carr

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System of Measurement

Threaded Insert Type

Material

Stainless Steel

For Tap Thread Size

Installed Length

Less than 0.25"

0.25" to 0.499"

For Use In

Thread Type

End Type

For Tap Type

Helical Insert Style

Military Specification

MIL-DTL-45932/1

Thread Spacing

Thread Direction

Specifications Met

Drill Bit Size

Key-Locking Insert Wall Style

Thread Insert Style

Number of Locking Keys

Nut Type

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Thread-Locking Insert Wall Style

External Locking Type

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247 Products

Fastening and Joining

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Rivet Nuts

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

Press-Fit Nuts

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

Rivet-Mount Nuts

Rivet-Mount Nuts

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Adhesive-Mount Nuts

Adhesive-Mount Nuts

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

Socket Nuts

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

Single-End Studs

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

Threaded Insert Tools

Threaded Insert Tools

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

Rivet Nut Tools

Rivet Nut Tools

Install rivet nuts

Building and Machinery Hardware

Leveling Mounts

Leveling Mounts

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

Protective Caps

Protective Caps

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

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

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