1.Material:stainless steel 2.Diameter:2.5mm-8mm 3.Length:2mm-60mm Material: stainless steel, carbon steelStandard: DIN,ISO,ANSI/ASME,BSW,GB,(UNC,UNF)Diameter:2.5mm-8mmLength:2mm-60mmPacking:Standard export packing or According to customers' demand.Customized fasteners can be made as per customer's sample or drawing. Round head rivets,DIN 660