McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Thread Size Thread Size	Show

10-24

	Thread Size Thread Size	Hide

	Thread Type Thread Type

UNC

UNF

	Threaded Insert Type Threaded Insert Type


Press Fit	Heat Set

Key Locking	Tapping

Thread Locking	Helical

Hammer In

	Installed Length Installed Length

	Material Material

	For Tap Thread Size For Tap Thread Size

	For Use In For Use In

	For Maximum Hole Diameter For Maximum Hole Diameter

	Drill Bit Size Drill Bit Size

	Thread Spacing Thread Spacing

Coarse

Fine

	End Type End Type

Open

Closed

	Thread Direction Thread Direction

	Right Hand

	Thread Fit Thread Fit

	Drive Style Drive Style


Slotted	Hex

	Tensile Strength Tensile Strength

	For Tap Type For Tap Type

Standard (UN)

Helical

Metric

	Key-Locking Insert Wall Style Key-Locking Insert Wall Style

Thin

Thick

	External Locking Type External Locking Type

Key

Thread Locker

	Passivation Passivation

Not Passivated

Passivated

	Finish Finish

Zinc Yellow-Chromate Plated

	Number of Inserts Included Number of Inserts Included

255

	Nut Type Nut Type


Press Fit	Rivet

Hex	Flange

Weld	Socket Head

Square	Screw Mount

Dowel

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204 Products

Threaded Inserts

Heat-Set Inserts for Plastic

Install these inserts into plastic parts to create a secure base for fasteners.

Press-Fit Inserts for Plastic

Press these inserts into a drilled hole. They have knurls, fins, or barbs that provide a good grip on the material so they stay in place.

Tapping Inserts for Plastic

Also known as Trisert inserts, these cut threads into plastic and have better holding power than press-fit inserts.

Key-Locking Inserts for Soft Metal

Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Install with a standard tap.

Easy-to-Install Thread-Locking
Inserts for Metal

Also known as E-Z Lok inserts, these inserts use adhesive to keep them in place. Install with a standard tap.

Helical Inserts for Metal

Wound like springs, the coil of these inserts expands once installed to securely anchor the insert.

Tapping Inserts for Soft Metal

These inserts cut their own threads in soft metals such as aluminum, so there's no need to tap the hole. Also known as Tap-Lok inserts.

Press-Fit Inserts for Soft Metal

The knurled body holds these inserts in place in aluminum and other soft metals. Use an arbor press to install them in untapped holes.

Tapping Inserts for Wood

These inserts cut threads into wood for a stronger hold than knurled or barbed inserts.

Hammer-In Tee Nut Inserts for Wood

A wide flange distributes the load over a large area. Hammer these inserts into a drilled hole.

Hammer-In Inserts for Wood

Hammer these inserts into a drilled hole.They have knurls or barbs that provide a good grip on the material so they stay in place.

Press-Fit Threaded
Inserts for Composites

Press these inserts into a drilled hole and the flexible metal teeth anchor them in the material. Use them with carbon fiber, fiberglass, and garolite.

Other Inserts

Press-Fit Nuts

Also known as clinch nuts, press these nuts into thin materials with an arbor press or similar pressure tool.

Rivet Nuts

Also known as blind inserts, rivet nuts can be installed in thin material when you have access to only one side.

Surface-Mount Nuts

Weld, glue, or screw these nuts onto thin materials.

Socket Nuts

Also known as Allen nuts, use these nuts with socket head cap screws in recessed holes and tight spaces that don't have enough clearance for a wrench.

Rivet Studs

Add a stud to thin material when you only have access to one side.

Binding Barrels and Screws for Wood

Create strong joints in wood and wood composite.

Dowel Nuts for Wood

Create a strong joint in a blind hole.

Shallow-Hole Female-Threaded
Anchors for Block and Brick

Also known as caulk-in anchors, these stay secure when there's not much material to hold.

Heavy Duty Leveling
Mounts with Threaded Stud

Use these mounts on heavy machines and equipment.

Corrosion-Resistant Leveling
Mounts with Threaded Stud

Made of 303 stainless steel, these mounts resist corrosion from water and most chemicals.

Threaded-Stud Bumpers

Twist these bumpers into a threaded hole. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces.

Threaded Bumpers

Mount these bumpers on a threaded stud. All are reinforced with a steel core or base plate for strength. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines.

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