looking for die 12/40

[Catch]

I have been making some inserts for a tang sight and need a die to thread the shaft that screws into the sight.

The die appears to be a 12/40. I can't seem to locate one anywhere. Does anyone know a place that I might find one? Thanks........

[44man]

I can find a 7/32-40 tap but not a die. About as close to a 12 I can find.

[leftiye]

Try brownells. 12 is a standard size (somewhat large for guns), 40 tpi is a special fine thread. MSC may have one, maybe.

[hiram]

I have 12X40 taps and die.