13-08-2020, 06:59 PM
As many know, I'm a bit of a rivet counter, maybe more than a bit. Once I learned the Imperial system(BA, BSC, WW, BSF, BSPT, BSPP etc.) it makes perfect sense. It may be a bit over engineered, but the idea of using different pitches for different materials and purposes is very well thought out. And, I appreciate that Whitworth form uses a radius on crowns and valleys and so lessens the possibility of stress fractures. That said, I have been known to use 1/4 20 UNC nuts with Whitworth screws on items that are not critical. However, for the most part, if it came in imperial, then it imperial it stays imperial. Introducing yet another thread would make my brain full.
Erich in Seattle
Erich in Seattle