Nut-Serts, sometimes called Rivet Nuts, require a pre-drilled hole and rivet installation tool.
Rivet nuts are tapped with an internal metric machine threading and are available in both plated Steel and Stainless Steel for superior corrosion resistance.
BelMetric carries a variety of Rivet Nut body forms including ribbed flange and hex flange (both twist-resistant) and smooth round.