(1)Standard:ASTMA194/194M (2)Grade: 2H/2HM/7/7M, 8/8M. (3)Size: M6-M100, 1/4"-4". (4)Material: Carbon Steel, Alloy Steel, SS. (5)Finish: black, plain, zinc, zinc yellow, HDG, 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.