Check the listing for details. 20Pcs Rivet Nuts M8 Carbon Steel Threaded Inserts Nuts Black. Condition: New. Listed at 13.92 USD. 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: Carbon SteelColor: BlackFinish: Zinc PlatedHead Type: Flat HeadBody Design: Knurled Body Thread Size: M8(Dia)Drill Hole Size: 11mm/0.43"(D)Length: 18.5mm/0.73"(L)Head Outer Diameter: 14.5mm/0.57"(D)QUANTITY INCLUDED - 20pcs x Rivet NutsADVANTAGE - All use carbon steel material, zinc plating finish, 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.