Tacklife 3 in 1 Rivet Gun, 11" Rivet Gun Rivet Nut Tool Reamer with 5 Rivet Heads, Hand Riveter wih TPR Rubber Handle, Steel for Plastic, Metal, Leather, Large & Small Jobs - Walmart.com
Swordfish 21140 - SAE Rubber Well Nut Assortment Nut Insert Kit, Package of 115 Pieces: Amazon.com: Industrial & Scientific
Hanson Rivet's Rubber-Nut & J-Nut Threaded Insert Kit - Consists of Over 300 Inserts, from Thread Size 6-32 to 3/8-163/8-16: Amazon.com: Industrial & Scientific
Rubber Well Nuts Brass Insert Expansion Nut SAE Inch Sizes 1/4-20 x 0.630 (0.015-0.111 Grip) 0.500 inch Hole Qty 25: Amazon.com: Industrial & Scientific
Everbilt 1/4 in.-20 tpi x 5/8 in. Brass Expansion Nut 814378 - The Home Depot