Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si High Quality Stainless Steel Hex Socket Button Head Bolts Screws Nuts Drive Type: Hex Socket; Head Style: Button Head Material: 304 Stainless Steel; Different Size of M5 (Include M5 Nuts) Used widely in the home and office appliance, communication equipment, assembly and other machinery industry. color: silver Package : 500Pcs Designed with 304 stainless steel material, the 304 stainless steel material provides strength and offers good corrosion resistance in many environments. Perfect for in confined areas where the head needs to be flush or below the surface. Fixing component, industrial and construction fasteners. Package included: 30Pcs * 8mm Screws 30Pcs * 12mm Screws 30Pcs * 16mm Screws 30Pcs * 20mm Screws 20Pcs * 8mm Screws 20Pcs * 12mm Screws 20Pcs * 16mm Screws 20Pcs * 20mm Screws 15Pcs M5 * 8mm Screws 15Pcs M5 * 12mm Screws 10Pcs M5 * 16mm Screws 10Pcs M5 * 20mm Screws 1 * box 3 * wrench Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.