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

Military Specification

MIL-DTL-45932/1

For Tap Type

Helical Insert Style

Thread Direction

Specifications Met

Key-Locking Insert Wall Style

Thread Spacing

Thread Insert Style

Drill Bit Size

Number of Locking Keys

DFARS Specialty Metals

Nut Type

Finish

Dry Film Lubricated

Phosphate Coated

Tin Zinc Plated

Zinc Yellow-Chromate Plated

For Material Thickness

0.027" to 0.165"

0.165" to 0.26"

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

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306 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 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

Rivet Nut Tools

Rivet Nut Tools

Install rivet nuts

Fabricating and Machining

Taps

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

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Protective Caps

Protective Caps

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

Leveling Mounts

Leveling Mounts

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

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