... Flat head,Knurled body , Closed end) Specification:M3-M12 material: steel, stainless steel, brass,aluminium. Riveting nut(Flat head, ... Knurled body , Closed end) We use cold forged technique, ... ,5/16. material: steel, stainless steel, brass,aluminium.ProductsMaterialFinish(plating)SizeStandardrivet nut1.steel 2.Stainless- Steel 3 ...