Detailed Product Description brass cap nut1)standard :GB,DIN,BS,ASTM,ISO,ANSI(IFI),JIS, ... :5mm-250mm,1/4''--10''4)matrrial: brass,copper,bronze, silicon bronze, aluminium bronze, nickel bronze, phosphor bronze, manganese bronze,etc.5 ... )finish: nickel, tin, chrome, zinc, silver, gold plated or ...