[Application]: Rivet nuts are commonly used in metal fabrication industries, including metal sheets and pipes. Special Features What you get: There are 7 different metric thread sizes of rivet nuts in the package, including 80pcs x M3-0.5, 70pcs x M4-0.7, 60pcs x M5-0.8, 40pcs x M6-1.0, 30pcs x M8-1.25, 20pcs x M10-1.5, 20pcs x M12-1.75 [Materials]: Rivet nuts are made of carbon steel, giving them high hardness and corrosion resistance for durability and deformation resistance. Precision manufacturing... Description: 1., [Materials]: Rivet nuts are made of carbon steel, giving them high hardness and corrosion resistance for durability and deformation resistance. Precision manufacturing ensures smooth surfaces with no burrs., 2., [Features]: These rivet nuts feature a flat head design. Create a hole matching the rivet nut's mounting hole size, insert the rivet nut, and use the riveting tool to secure the locking nut. Rivet Nuts US Style, Half Hex Body Rivet Nut, Steel Zinc Half Hex Flange Rivet Nuts [Materials]: Rivet nuts are made of carbon steel, giving them high hardness and corrosion resistance for durability and deformation resistance. [Features]: These rivet nuts feature a flat head design. Precision manufacturing ensures smooth surfaces with no burrs. What you get: There are 7 different metric thread sizes of rivet nuts in the package, including 50pcs x M3-0., 5, 40pcs x M4-0., 7, 30pcs x M5-0., 8, 25pcs x M6-1., 0, 20pcs x M8-1., 25, 15pcs x M10-1., 5, 10pcs x M12-1., 75 Additionally, the half hex body rivet nut possesses a large flange, which offers enhanced strength when used in punched or drilled holes. M3-M12 Stainless Steel Flat Head Half Hex Body Rivet Nut Rivet nut, Half Hexagon Flat Head Rivet Nuts, Zinc Plated Carbon Steel Open Semi Hex Thread Insert Nutsert Open Blue(Size:M12(10pcs