Features:_x000D_ _x000D_ Made of zinc plated carbon steel material, high strength and good corrosion resistance. _x000D_ Hexagonal shape has 6 sides that gives a good granularity of angles for a tool to approach from. _x000D_ These hex nuts will be great replacement for industrial and construction fasteners. _x000D_ Used to fit bolts, studs or machine screws for fastening two parts together to make them one piece. _x000D_ Widely used in the home and office appliance, communication equipment, ship assembly and other machinery industry. _x000D_ _x000D_ Specification:_x000D_ Condition: Brand _x000D_ Material: Carbon steel_x000D_ Surface treatment: galvanized_x000D_ Quantity: 10pcs_x000D_ Type & Hex Size & Weight: #01 M8*20, 11mm, 88g/3.1oz; #02 M8*28, 10mm, 71g/2.5oz; #03 M8*30, 12mm, 167g/5.9oz; #04 M8*40, 12mm, 223g/7.9oz (Optional)_x000D_ _x000D_ Package List:_x000D_ 10 x Hex Nut 1Made of zinc plated carbon steel material, high strength and good corrosion resistance. 2Hexagonal shape has 6 sides that gives a good granularity of angles for a tool to approach from. 3These hex nuts will be great replacement for industrial and construction fasteners. 4Used to fit bolts, studs or machine screws for fastening two parts together to make them one piece. 5Widely used in the home and office appliance, communication equipment, ship assembly and other machinery industry.