I cannot fillet the edges on the threads of this part.

I am trying to create a 0.75mm fillet on the square edges of the thread of this part but it keeps giving me this error.

"Cannot create a valid fillet/chamfer because either this filleted/chamfered face is self-intersecting or its loop is bad".

I have attached the part.

Message was edited by: Mussie Tesfay

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