I need to make a replacement nut for the vice screw on my power hacksaw, its a LH 7/8" x 4 tpi and presumably acme profile. The nut is about 40mm long.
I know I need to consider flank clearance when I'm grinding the threading tool, and I know I need to hold that tool in the shortest and thickest possible threading bar to counteract chatter. Anything else I need to be aware of, any thoughts?

I know I need to consider flank clearance when I'm grinding the threading tool, and I know I need to hold that tool in the shortest and thickest possible threading bar to counteract chatter. Anything else I need to be aware of, any thoughts?
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