Steel Inserts | McMaster-Carr

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System of Measurement

Thread Size

Threaded Insert Type

For Use In

Stainless Steel

For Tap Thread Size

Installed Length

Less than 0.25"

0.25" to 0.499"

10 mm to 19.9 mm

20 mm to 24.9 mm

25 mm or greater

Finish

Aluminum Titanium Nitride (AlTiN) Coated

Cadmium Yellow-Chromate Plated

Chromate Conversion Coated

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Phosphate Coated

Nut Type

End Type

Thread Pitch

For Material Thickness

0.010" to 0.06"

0.010" to 0.075"

0.010" to 0.08"

0.010" to 0.085"

0.01" to 0.165"

0.016" to 0.188"

0.020" to 0.085"

0.020" to 0.100"

0.020" to 0.150"

0.020" to 0.175"

0.020" to 0.280"

0.02" to 0.165"

Thread Type

UN/UNF (SAE Straight)

For Tap Type

Drill Bit Size

Length

Key-Locking Insert Wall Type

Thread Spacing

Thread Direction

Hole Diameter

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Export Control Classification Number (ECCN)

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11,610 Products

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Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Taps

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

All Results

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Screw-Mount Nuts

Screw-Mount Nuts

Mount with screws, rivets, and nails to add threads to a surface

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

Tube-Connecting Nuts

Tube-Connecting Nuts

Push inside tubes to join them with a threaded stud instead of welding

Rivet-Mount Nuts

Rivet-Mount Nuts

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

Dowel Nuts

Form joints in blind holes in wood

Adhesive-Mount Nuts

Adhesive-Mount Nuts

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

Studs

Press, weld, or screw in place to add a threaded fastening point

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

Dowel Screws

Screw into holes to join two pieces of wood

Unthreaded Inserts

Unthreaded Inserts

Reinforce, align, and adjust joints as you tighten a fastener

Socket Nuts

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

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

Binding Barrels

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

Single-End Studs

Single-End Studs

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

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

Rivet Nut Tools

Rivet Nut Tools

Install rivet nuts

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Anchor Installation Tools

Anchor Installation Tools

Drive with a hammer to expand and secure anchors in place

Snap-In Nut Tools

Snap-In Nut Tools

Compress the legs of snap-in nuts so they're easy to install and remove

Fabricating and Machining

Taps

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

Lathe Tool Insert Holders

Lathe Tool Insert Holders

Secure inserts within lathes to add cuts and grooves to workpieces

Lathe Tool Inserts

Lathe Tool Inserts

Pair with lathes to add cuts and grooves to workpieces

Lathe Tools

Shape workpieces as they rotate on a lathe

End Mill Insert Holders

End Mill Insert Holders

Pair with inserts to create end mills that have a replaceable cutting edge

Face Mills

Flatten and smooth the surface of wide workpieces in high-speed, high-volume applications

Face Mill Insert Holders

Face Mill Insert Holders

Pair with face milling inserts to create custom face mills

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

Fixture Plate Plugs

Fixture Plate Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines

Fixture Clamps

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

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

Knurls

Pair with a knurling tool to add patterns to workpieces for a better grip

Hand Knurling Tools

Hand Knurling Tools

Without using a lathe, create grooved patterns on workpieces to improve their grip

Counterbores

Enlarge the top of a hole to install socket and hex head screws flush with the surface

Drill Bits

Create holes in metal, wood, plastic, concrete, and more

Panel Alignment Clamps

Panel Alignment Clamps

Align and hold sheet metal panels for drilling, riveting, and welding

Building and Machinery Hardware

Leveling Mount Inserts

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

Leveling Mounts

Leveling Mounts

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

Vibration-Damping Mounts

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

Protective Feet

Protective Feet

Add to furniture and light equipment to protect floors from scratches and wear

T-Slotted Framing Fasteners

T-Slotted Framing Fasteners

Secure brackets and other accessories to T-slotted rails

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Locking-Slotted Framing Fasteners

Locking-Slotted Framing Fasteners

Secure brackets and other accessories to locking-slotted rails

Protective Caps

Protective Caps

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

Protective Plugs

Protective Plugs

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

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Material Handling

Caster Sockets

Mount on the inside corners of channel and other framing to attach stem casters

Hitch Inserts

Fit into hitch receivers and secure with a hitch pin to create a connection for towing

Kingpins

Bolt or weld to a semi-trailer to connect it to your tractor

Hitch Receivers

Hitch Receivers

Use with hitch inserts and pins to create a complete hitch for towing

Forklift Hitch Receivers

Forklift Hitch Receivers

Secure to forklift forks and slide in a hitch to adapt a forklift for towing

Jacks

Lift, hold, push, and position heavy objects

Hitch Pins

Secure hitch inserts to hitch receivers for towing

Hitch Kits

Everything you need to attach a hitch to your vehicle’s receiver

Conveyor T-Slot Bolts

Conveyor T-Slot Bolts

Drop into the T-slot to mount components

Power Transmission

Rod End Inserts

Rod End Inserts

Attach to rod ends to increase the amount of misalignment they can handle

Electrical Power, Networking, and Controlling

Outlet Strips

Plug in multiple devices to power them from a single outlet

Electronics Rack Equipment Installation Supports

Electronics Rack Equipment Installation Supports

Create temporary ledges to support heavy equipment as you mount it to a rack

Fluid Handling

Hose Plugs

Insert into the ends of hose to keep out dirt and debris

Facility and Grounds Maintenance

Faucet Hole Covers

Faucet Hole Covers

Close off unused faucet holes intended for soap dispensers and side sprayers

Containers, Storage, and Furniture

Stacking Caps and Targets

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

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