"It wasn’t until 1841 that Joseph Whitworth managed to find a solution. After years of research collecting sample screws from many British workshops, he suggested standardizing the size of the screw threads in Britain so that, for example, someone could make a bolt in England and someone in Glasgow could make the nut and they would both fit together. His proposal was that the angle of the thread flanks was standardized at 55 degrees, and the number of threads per inch, should be defined for various diameters. While this issue was being addressed in Britain, the Americans were trying to do likewise and initially started using the Whitworth thread. "
It hasn't even been 200 years since invention & usage of standardized parts. We've come a long way.
It hasn't even been 200 years since invention & usage of standardized parts. We've come a long way.
https://www.nord-lock.com/insights/knowledge/2017/the-histor...