... ,DIN126,DIN440,DIN1440,DIN1441,DIN1052,DIN7349,DIN7989,BS4320,BS3410,SAS,and USS and non-standard washers etc2) Size: From M1.6-to ... M783) Material: Carbon steel, stainless steel4) surface finishing : plain, white zinc plated ... customers requirements. DIN6916 washer,kinds of screws, fasteners, hex bolt and nuts