... Hot Dipped Galvanized; 3.Good price and quality; Metal stamping part/channel nutchannel nut(M6,M8,M10,M12,1/2",1/4 ... ",5/16",3/8"): 1.Material:carbon steel;2.Surface treament:nickel plating,,zinc plating,galvanized,hot ... 8mm,M12*9.1mm,M12*11.9mm,1/4",3/8",5/16",1/2" )We hope to receive ... will quote you competitive price asap. hot dipped galvanized spring nut(M6,M8,M10,M12,1/4",3/8",1/2")