... End Rivet Nut by Cold forging.Size:M3-M12, UNC8/32-1/2.Material:Steel, Stainless Steel, Aluminium.. Head Type: flat head/ thin head/countersunk ... : UNC6-32~1/2-13Material: steel, aluminium, stainless steel, brassPlating: Yellow Zinc Plating, White Zinc Plating, Black Zinc Plating, Zn-Ni ... )M120.5~3.00.5~3.5161515191.822.024.3 flat head rivet nut