Motometer rebuild

[slammin]

I checked the swap meet thread, where John Duden was offering brass nuts for the Motometer last year. I wonder if they are a straight 7/16-27 thread, or a 1/8-27 tapered pipe thread, which does mic approx 7/16 near the big end of the taper. If John is no longer interested in producing them, I would if I new exactly what I was making. I'm a journeyman tool & die maker with 50 years experience and my own machine shop.