stainless steel spring nut: 1.Material:SS304/SS316;mild steel; 2.Surface:polished;galvanized; 3.Good price and good ... Stainless Steel 304 or 316 channel spring nut:1.Material:stainless steel 304 or 316;or mild steel ... spring nut;(Size: M6,M8,M10,M12,1/4",5/16",3/8",1/2");4.Competitive price and good quality;5.OEM ... ,M12*8mm,M12*9.1mm,M12*11.9mm,1/4",3/8",5/16",1/2"; M6(1/4") SS304/SS316 spring nut