UNC Inserts | McMaster-Carr

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System of Measurement

Thread Size

Material

Stainless Steel

Threaded Insert Type

For Use In

Installed Length

Less than 0.25"

0.25" to 0.499"

10 mm to 19.9 mm

End Type

Thread Insert Style

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

Drill Bit Size

For Tap Thread Size

Thread Spacing

Body Length

Nut Type

Thread Direction

For Material Thickness

0.000" to 0.197"

0.010" to 0.075"

0.010" to 0.080"

0.010" to 0.085"

0.015" to 0.050"

0.015" to 0.094"

0.015" to 0.156"

0.015" to 0.437"

0.016" to 0.188"

0.020" to 0.079"

0.020" to 0.085"

0.020" to 0.100"

0.020" to 0.118"

Helical Insert Style

For Tap Type

DFARS Specialty Metals

Flange Diameter

RoHS

Compliant with Exemptions

For Use On

Stainless Steel

REACH

Thread Fit

Metric Class 6g

Metric Class 6H

Unified Standard Class 1A

Unified Standard Class 1B

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Tensile Strength

Less than 20,000 psi

20,000 psi to 39,999 psi

40,000 psi to 49,999 psi

50,000 psi to 99,999 psi

100,000 psi or greater

Export Control Classification Number (ECCN)

How can we improve?

6,061 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

Screw-Mount Nuts

Screw-Mount Nuts

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Tube-Connecting Nuts

Tube-Connecting Nuts

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

Adhesive-Mount Nuts

Adhesive-Mount Nuts

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

Snap-In Nuts

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

Dowel Nuts

Form joints in blind holes in wood

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

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Anchors

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

Socket Nuts

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

Standoff Caps

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

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

Fabricating and Machining

Taps

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

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

Building and Machinery Hardware

Leveling Mount Inserts

Leveling Mount Inserts

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

Vibration-Damping Mounts

Vibration-Damping Mounts

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

Leveling Mounts

Leveling Mounts

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

Protective Feet

Protective Feet

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

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