APPLY TO - A rivet nut is used for metal plates or non-metallic, wood and other plates in housing construction, and can also be used in the assembly of furniture, household thin iron cabinets, equipment shells, and other machine and light industrial products.SPECIFICATION:Material: 304 Stainless SteelColor: Silver ToneHead Type: Flat HeadBody Design: KnurledThread Size: M8(D)Drill Hole Size: 11mm/0.43"(D)Length: 18mm/0.71"(L)Head Outer Diameter: 14mm/0.55"(D)QUANTITY INCLUDED - 20pcs x Rivet NutsADVANTAGE - All use 304 stainless steel material, high hardness, no-rust, wear-resistance, and perfect corrosion resistance. Replace the traditional welding nut, make up for the problem of metal sheet, thin tube welding and fusible.INSTALL - The rivet nut is designed to solve the problem that the material is too thin to process the thread.