... stamping part/Fastener:Stainless Steel 304 or 316 channel spring nut:1.Material:stainless steel 304 or 316;2.Surface treament: washing or polished,zinc plating,hot ... dipped galvanized,nickel plating;3.Stainless Steel 304 or 316 spring nut;(Size: M6,M8,M10,M12,1/4",3 ...