
I need some 1/2 T-Nuts. Can't find them at the local big box stores or on amazon, so it was going to be pretty pricy to get them from a specialty hardware mail order store. I used these instead, installing them in some 1/8 thick scrap metal plate, then I mounted the plate with four screws in the corners. You can see other reviews that explain how to expand these with some nuts, washers and wrenches, versus buying the tool.

Get A Strong Grip With TICONN'S 100 Pc SAE Rivet Nut Kit - Zinc Plated Carbon Steel Flat Head Insert Nut With Knurled Body (SAE UNC 8-32)
6 Review

🔧 Circuit Performance Forged Steel Extended Hex Lug Nut Set - 12x1.25 Gold (20 Piece) With Included Tool
6 Review

304 Stainless Steel Machine Screw And Hex Nut Assortment Kit - 170 Pieces By T.K.Excellent
4 Review

PGMJ 80 Pieces M8 Wood Inserts Bolt Furniture Screw in Nut Threaded Fastener Connector - Hex Socket Drive for Wood Furniture Assortment (M8x20mm)
3 Review