Self-Clinching Nuts

Self-clinching nuts press permanently into thin sheet metal to provide strong, reusable threads where tapping the sheet would be too weak or welding impractical. The clinching action locks the nut flush on both sides, leaving a durable threaded hole. They're standard in electronics enclosures, panels, and sheet-metal assemblies. We stock self-clinching nuts in steel and stainless.

How Self-Clinching Nuts Work

The nut has a knurled, undercut clinching profile. Pressed into a properly-sized hole in ductile sheet metal, the surrounding material cold-flows into the undercut, locking the nut against rotation and push-out. The result is threads far stronger than those tapped directly into thin sheet, and a flush installation that doesn't protrude.

Sheet Requirements

Self-clinching nuts require ductile sheet softer than the nut and a minimum sheet thickness. Steel nuts clinch into steel or aluminum sheet; stainless nuts into stainless. Pressing into too-hard or too-thin material gives a weak clinch — matching nut and sheet correctly is essential.

Materials

Steel (hardened, zinc plated): for steel and aluminum sheet. 400-series/18-8 stainless: for stainless sheet and corrosion resistance. The nut must be harder than the sheet to clinch.

Selecting the Right Self-Clinching Nut

Match the nut material to the sheet (must be harder than the host), verify minimum sheet thickness, and use the correct hole size. Press — don't hammer — with adequate force for a full clinch. Choose the thread size for the component being mounted and confirm the flush requirement suits your assembly.

Use the filters to narrow by thread size and material. Orders before 12 PM ET ship same day.