Features:_x000D_ _x000D_ Made of high quality 304 stainless steel, rust and corrosion resistant, widely used in industry. _x000D_ This set is organized by size in a transparent storage case for quick access and protection. _x000D_ There are 6 different sizes in one set to meet your various needs. _x000D_ Ideal for use by a variety of workers and repairmen from plumbers to assemblymen both professional and amateur. _x000D_ Similar to countersunk head screws, the nail head is embedded in the machine parts. Generally used in various machine tools and accessories. _x000D_ _x000D_ Specification:_x000D_ Material: 304 stainless steel_x000D_ Weight: 327g/11.5oz_x000D_ Size & Quantity: _x000D_ #10-32*5/16 20pcs_x000D_ #10-32*1/4 20pcs_x000D_ #10-32*5/8 10pcs_x000D_ #10-32*3/8 20pcs_x000D_ #10-32*3/4 10pcs_x000D_ #10-32*1/2 10pcs_x000D_ #10-32 Nut 50pcs_x000D_ _x000D_ Package List:_x000D_ 20 x #10-32*5/16 _x000D_ 20 x #10-32*1/4 _x000D_ 10 x #10-32*5/8 _x000D_ 20 x #10-32*3/8 _x000D_ 10 x #10-32*3/4 _x000D_ 10 x #10-32*1/2 _x000D_ 50 x #10-32 Nut 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.