Features: Made of high quality 304 stainless steel, rust and corrosion resistant, widely used in industry. This set is organized by size in a transparent storage case for quick access and protection. There are 6 different sizes in one set to meet your various needs. Ideal for use by a variety of workers and repairmen from plumbers to assemblymen both professional and amateur. Similar to countersunk head screws, the nail head is embedded in the machine parts. Generally used in various machine tools and accessories. Specification: Material: 304 stainless steel Weight: 327g/11.5oz Size & Quantity: 10-32*5/16 20pcs 10-32*1/4 20pcs 10-32*5/8 10pcs 10-32*3/8 20pcs 10-32*3/4 10pcs 10-32*1/2 10pcs 10-32 Nut 50pcs Package List: 20 x 10-32*5/16 20 x 10-32*1/4 10 x 10-32*5/8 20 x 10-32*3/8 10 x 10-32*3/4 10 x 10-32*1/2 50 x 10-32 Nut Package List 1Made of high quality 304 stainless steel, rust and corrosion resistant, widely used in industry. 2This set is organized by size in a transparent storage case for quick access and protection. 3There are 6 different sizes in one set to meet your various needs. 4Ideal for use by a variety of workers and repairmen from plumbers to assemblymen both professional and amateur. 5Similar to countersunk head screws, the nail head is embedded in the machine parts. Generally used in various machine tools and accessories.