Yes I know, this was asking for trouble. M10X1.0 threads in aluminium for the banjo bolts in the tank. Threads were fucked after tightening to pressure test the tank. Time to put helicoils in. With 1 challenge…. I was not able to get a drill into 1 of the threads. So I ordered a special 10.3mm extremely long drill bit to get that sorted haha.