DIN 935 hexagon castle nuts in class 8 and 6 class.
Now we can produce and machine this kind of castle hexagon nuts in large quantity and
in class 8 and class 6.zinc plated too.
the size can machining to M48.
Sizes are M20,M24,M30,M36,M42,M48.......
The below is the standards for DIN985-1987 .