Item Type: Flat Head Rivet NutMaterial: 304 Stainless SteelHead Type: Flat HeadColor: SilverRivet Range: 0.5-5mmSize: M3, M4, M5, M6, M8, M10Application: Suitable for automobiles, furniture, decoration, etc. electrical and industrial productsPackage List45 x M3 Flat Head Rivet Nut40 x M4 Flat Head Rivet Nut40 x M5 Flat Head Rivet Nut30 x M6 Flat Head Rivet Nut15 x M8 Flat Head Rivet Nut10 x M10 Flat Head Rivet Nut1 x Storage Box1ASSORTMENT KIT: The rivet nut kit has 6 specifications, respectively are M3 M4 M5 M6 M8 M10, to meet your different needs. 2180 PCS: The set contains 150 pcs flat head threaded insert nuts, enough quantity for your long term use. 3304 STAINLESS STEEL: These rivet nuts are made of 304 stainless steel material, which are sturdy, corrosion resistance, and have a long service life. 4WIDE USAGE: These rivet nuts are suitable for various thickness of materials, can be riveted firmly, have high efficiency and are easy to use. 5MULTI PURPOSE: This rivet nut assortment kit is suitable for automobiles, furniture, decoration, etc. electrical and industrial products.