UNC Threaded Inserts | McMaster-Carr

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2,737 Products

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

1,367 products

Rivet Nuts

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

230 products

Press-Fit Nuts

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

198 products

Screw-Mount Nuts

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

25 products

Weld Nuts

Weld to metal surfaces to add permanent threads

256 products

Adhesive-Mount Nuts

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

78 products

Clip-On Nuts

Slide onto the edge of thin panels to create a fastening point

30 products

Snap-In Nuts

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

43 products

Anchors

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

94 products

Socket Nuts

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

27 products

Threaded Insert Installation Tools

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

37 products

Building and Machinery Hardware

Leveling Mount Inserts

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

94 products

Measuring and Inspecting

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

22 products