Dear Sarinya,
Good morning.
Regarding the rolling dies, factory still has some queries to confirm,
1. Is the nut of the thread made to be customized?
If yes -> Please send samples of the nuts to study the detailed thread specifications, as this thread spec is customized, factory need more information, like the height and angle of the pitch.
If no -> Please refer to the notes in drawing about the belly part.
2. What is the material of this nut?
Awaiting for your reply, thank you.