1.Name:ACME Thread Rod 2.Meterial:Carbon Steel,Stainless Steel 3.Size:M3-M100;1/4"-4" 4.Certificate:ISO9001: ... ,ISO,GB,Nonstandard bolt(according to your order),etc3.MaterialCarbon Steel, Stainless Steel4.GradeA, 2, 5 or others.5.FinishZinc plated ... should be according to your order); NE-54 45#/Stainless steel acme thread rod with single/many star