Check the listing for details. 85Pcs Rivet Nut Flat Head, #8, #10, 1/4", 5/16", 3/8". Condition: New. Listed at 22.85 USD. Description:1. [Materials]: Rivet nuts are made of 304 Stainless Steel, giving them high hardness and corrosion resistance for durability and deformation resistance.2. [Features]: Our rivet nuts feature knurls with flat, deep threads for easy installation and slip resistance. Rivet nuts are fasteners used to join thin materials that cannot be threaded.3. [Easy to use]: Rivet nuts require riveting tools, either pneumatic or manual. 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.4. [Application]: Rivet nuts are commonly used in metal fabrication industries, including metal sheets and pipes.Specification:Material: 304 Stainless SteelHead Diameter: 9.9mm/0.39inch; 10.5mm/0.42inch; 12.7mm/0.5inch; 17.4mm/0.69inch; 17.4mm/0.69inch;Body Diameter: 6.7mm/0.