(1)Size: M6-M80, 1/4"- 3". (2)Grade: 4.8, 5.5, 6.8, 8.8, 10.9, 12.9. (3)Material: Carbon Steel, Alloy Steel,SS. (4)Finish:zinc,zinc yellow,plain,black,HDG,etc. (5)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. (6)Payment terms: T/T, L/C, Western Union.