... ,hot dipped,nickel plating;3.Stainless Steel 304 or 316 spring nut;(Size: 1/4",3/8",5/16",1/2",M6,M8,M10,M12 ... );4.Competitive price and good quality;5. ... OEM service available;We hope to receive drawings or ... galvanized spring nut(M6,M8,M10,M12,1/4",3/8",1/2",5/16")