UNF Inserts | McMaster-Carr

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1,353 Products

Fastening and Joining

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Press-Fit Nuts

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

Rivet Nuts

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

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

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

Standoff Caps

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

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

Studs

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

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Threaded Insert Tools

Threaded Insert Tools

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

Fabricating and Machining

Lathe Tool Inserts

Lathe Tool Inserts

Pair with lathes to add cuts and grooves to workpieces

Lathe Tools

Remove material from workpieces as they rotate on a lathe

Building and Machinery Hardware

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 Plugs

Protective Plugs

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

Protective Caps

Protective Caps

Cover holes at the end of pipe, conduit, and fittings to keep out debris

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