... :Din,ISO,JIS& ANSI,GB,BS 2.Size of thread rod:30-6000mm 3.surface:zp,hdg black 4.iso rohs ... .2.high quality competive price.3.material of thread rod:stainless steel ,carbon steel.4.surface treatment:black,white blue,zinc nickel ... ,ISO,JIS& ANSI,GB and BS.6.packing of thread rod:general export packing plastic&pallet or according require7.grade:4 ...