(1)Standard: ASTMA325 (2)Grade: A325/A325M. (3)Size: M6-M80, 1/4"- 3". (4)Material: Carbon Steel, Alloy Steel (5)Finish: plain, black, zinc, zinc yellow, PTFE,etc. (6)Packing: 1.Less than 25kgs bulk into carton, then packed on pallet 2.Small box or color box, then into carton, then packed on pallet 3.As customers' request.