Review on Rustark Rivet Nut Assortment Kit - 50-Pcs 🔩 1/2''-13UNC Zinc Plated Carbon Steel Flat Head Insert Nutserts by Richard Cunningham

As an experienced machinist, I can say with confidence that the 5-32 size either does not exist or is extremely rare in the SAE system. Therefore 55 pieces "5/32-32" in this assortment are unusable. They fit almost a 6-32 (this standard size isn't in that range) but have a very loose fit. You could pass for 7-32 if that size existed (which it doesn't). I tried to pass this basic knowledge of SAE metrology on to a supplier who didn't seem to care the least about his jokes. I would give 1 star for missing 6-32 inserts and 0 stars for customer service.