Feature:1. Such 320PCs hardware fastener can meet your different needs for long term use.2. These industrial parts supports wide applciation, used in home decoration, construction, industry, etc.3. Practical to use High-quality screws, nuts and flat head rivet set can be easy to install.4. With high strength and good durability, these screws and nuts can be suitable for various sizes.5. Used in the easy way, such hardware fastener can be installed on many different types of materials.Specification:Item Type: Screws + nuts + flat head rivet setCommodity Material: IronProduct Size (mm): M5 x 5, M5 x 6, M5 x 8, M5 x 10, M5 x 12, M5 x 15, M5 x18, M5 x 20Rivet Size (mm): M4 x 4 Package List:20 x Silver Screw + Nut for Ledger (M5 x 5)20 x Silver Screw + Nut for Ledger (M5 x 6)20 x Silver Screw + Nut for Ledger (M5 x 8)20 x Silver Screw + Nut for Ledger(M5 x 10)20 x Silver Screw + Nut for Ledger (M5 x 12)20 x Silver Screw + Nut for Ledger (M5 x 15)20 x Silver Screw + Nut for Ledger (M5 x 18)20 x Silver Screw + Nut for Ledger (M5 x 20)160 x Rivet