... Material:Carbon Steel; 2.Surface:Hot Dipped Galvanized; 3.Good price and quality; Metal stamping part/channel nutchannel ... (M6,M8,M10,M12,1/2",1/4",5/16",3/8"): 1.Material:carbon steel;2.Surface ... ,,zinc plating,galvanized,hot dipped and so on;3.Stainless steel 304 or 316 or carbon steel ... 1mm,M12*11.9mm,1/4",3/8",5/16",1/2" )We hope to receive drawings or physical ... spring nut(M6,M8,M10,M12,1/4",3/8",1/2")