Features Material: These hex nuts are made of 304 stainless steel which provides strength and offers good corrosion resistance in many environments. Good Alternatives: These hex nuts serve as reliable replacements for industrial and construction fasteners. Variety of Sizes: A variety of commonly used hexagonal nuts in different sizes to meet your general needs. Wide Application: Suitable for use in home and office appliances, communication equipment, ship assembly, and other machinery industries. Includes Storage Box: 140 pcs hex nuts in assorted sizes are organized by category in a storage box for easy access and organization. Helps prevent loss or mixing during use. Specification: Material: 304 stainless steel Size & Quantity: M1*0.1 20 pcs M1.2*0.1 20 pcs M1.4*0.1 20 pcs M1.6*0.1 20 pcs M2*0.1 20 pcs M2.5*0.2 20 pcs M3*0.2 20 pcs Weight: 48g / 1.7oz (approx.) Package List: 1 storage box with assorted hex nuts