Rivet Nut - SODIAL(R) 100Pcs Zinc Plated Carbon Steel Rivet Nut Rivnut Insert Nutsert 1/4-20 Zinc Plated Carbon Steel Rivet Nut Rivnut Insert Nutsert 1/4-20UNC, 0.5-3.5mm Rivet Range, Large Flange, Knurled Body