Review on Amlits 205PCS 304 Stainless Steel Rivet Nut Assortment Kit - Threaded Insert Nutserts Set with Flat Head for M3-M10 Sizes by Dylan Deng

This is a lifetime supply of rivet nuts for me as I don't need them often but when I do need them they save a life. They are made of 304 stainless steel which is quite corrosion resistant. The plastic storage box is a bit fragile as it arrived with a broken side. While the description is correct, the label on the cap is incorrect as 12mm rivet nuts are not included. Otherwise this set will no doubt come in handy from time to time if you have a riveting tool with the right size heads.