Weld Nut vs. Rivet Nut
Both put a permanent nut where you cannot reach behind the panel — one by welding, one by swaging.
| Feature | Weld Nut | Rivet Nut |
|---|---|---|
| Attachment | Welded to the panel | Swaged into a drilled hole |
| Panel material | Weldable metals only | Metal, plastic, composites |
| Finish damage | Heat and spatter — needs paint | None |
| Strength | Highest | Good for thin sheet |
| Best for | Steel structures, production welding | Thin sheet, mixed materials |
Verdict
Weld nuts give the strongest, most permanent anchor on weldable steel. Rivet nuts are the choice for thin sheet, mixed materials, or when you cannot weld.