" A Christmas Carol 1951

[el-saturn]

there's basically only one reason to keep only one leftover of SAE: more bolt sizes, so lightweight design (aircraft and car/bike racing) depends on the optimal size - M8 to M10 is already a big jump. sandy

[S3FHC]

I have been involved in the Aviation industry all of my working life and as such I have used both Imperial and Metric, it helps to keep it interesting!