we supply various types and specifications of nuts: strength: by DIN, ANSI/ASME, BS, GB or JIS standard or with high strength after quenching and tempering. surface finish:                                       Natural, galvanized(blue,white,black), chromeplated, Nickel-plated, gold-filled and so on. Application: can be used in various of applications like construction hardware, furniture, electronic and electrical appliances, automobiles, sport equipment... Inner packing: plastic bag or gunny bag Outer packing: In cartons, wooden cases, or according to customers' requirement origin: China