Made of 304 stainless steel, this fastener set offers strength and good corrosion resistance in various environments. Ideal for industrial and construction applications requiring hex socket cap head screws. Suitable for use in home and office appliances, communication equipment, ship assembly, machinery, furniture, repair, and DIY projects. Material: 304 Stainless Steel Grade: A2-70 Color: Silver Type: Hex Socket Cap Head Standard: Metric Size & Quantity: M2 x 8mm 20 pcs M2 x 12mm 20 pcs M2 x 16mm 20 pcs M2 x 20mm 20 pcs M2 Nuts 80 pcs M3 x 8mm 20 pcs M3 x 12mm 20 pcs M3 x 16mm 20 pcs M3 x 20mm 20 pcs M3 Nuts 80 pcs Box Size: 13.2 x 7.2 x 2.3 cm (5.19 x 2.83 x 0.9 inches) Package Includes: 1 set of 480 pcs hex screw and nut fasteners Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.