... QA Check Large Flange Head Knurled Body Rivet Nut, Steel, Zinc Plated Rivet nuts Basic Product Information:1.Material:carbon steel ... , aluminium, stainless steel 2.Finish:Zinc Blue,Zinc Yellow,Zinc Clear, Nickel Flash3.Head shape: Flat head, small head ... much appreciated. Large Flange Head Knurled Body Rivet Nut, Steel, Zinc Plated