Stainless Steel Blind Rivet Nut We are specilize in produce it ... flat head ,countersunk head, round body, hex body, open end, closed end, body with ribben, body with groove ... 16,1/4,5/16,3/8 . Material: steel, stainless steel, brass,aluminium. We specilize in producing it . ... for many years.ProductsMaterialFinish(plating)SizeStandardrivet nut1.steel 2.Stainless- Steel 3.aluminum 4.brass1.plain 2.yellow ...