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Please help me to make flat patern for this part. for screw.
You can't as of now with inventor look at a software called SPI for Inventor.
http://sheetmetalinventor.com/en/188/home
It will unfold it send it to them ask for a sample they will unfold it and send it back..
I also have a excel program that will do it in Autocad but I can't find it.....