21Pcs 3/8"-16UNC Flat Head Rivnut Threaded Insert Nutsert , Knurled Body

30 Pcs 3/8"-16 Rivet Nut, 304 Stainless Steel Flat Head Rivnut Threaded Insert

30 Pcs 3/8"-16 Rivet Nut, 304 Stainless Steel Flat Head Rivnut Threaded Inser...

30 Pcs 3/8"-16 UNC Rivet Nut, Carbon Steel Flat Head Rivnut Threaded Insert N...

32Pcs Rivet Nut 5/16"-18UNC Stainless Steel 304 Flat Head Rivnut Threaded Ins...

21 PCS Rivet Nut 3/8-16 Stainless Steel 304 Flat Head Threaded Nutsert

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5/16-18 Rivet Nut Stainless Steel 304 (18/8), UNC Flat Head Threaded Insert R...