... ,black 5.Hot zinc,dacromet We are a large hex bolts and nuts manufacturer with capacity of over 200MT ... per day.Range size: (1)Hex. BoltsDiameter.: M6~M56(1/4~2")Length: 500mm max ... ANSI A307/2/5/8/A325)Standard: DIN,ANSI,UNI,JIS,ISOincl.DIN931/933/601/960/961/6921, ANSI/ASME B ... UNI,JIS,ISOincl.DIN603, ANSI/ASME 18.5, ISO8677(4)Hex. Nuts:Diameter.: 3MM--72MM (1/4"---3")Grade: ...