We just released a new Sprinter 170 Standard Rack Manual that should call out all of your torque specifications. If you still have questions let us know! cdn.shopify.com/s/files/1/0412/9898/5124/files/Sprinter_170_STND_Rack_Manual_REV_0_Updated_Draft.pptx.pdf?v=1724447129
The best thing to do would be to use a M7 tap to chase out / re-tap the end of the 8020. Depending on how bad it is stripped, you may need to purchase a slightly longer M7 bolt to replace the self tapping one that came with the kit. I hope this helps!
