In the mid-20th century, the developed a guideline specifically for the automotive sector, which eventually evolved into the globally recognized VDI 2230 Part 1: Systematic calculation of highly stressed bolted joints .
You can purchase and download the official document from the VDI Standard Shop : vdi 2230 part 1 pdf
VDI 2230 is a German guideline for the calculation and design of bolted joints, published by the Verein Deutscher Ingenieure (VDI), which translates to "Association of German Engineers". The guideline provides a comprehensive method for designing and verifying the strength of bolted joints under various loads. In the mid-20th century, the developed a guideline