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