my First Stihl - 029 saga continues - tank replacement

[ribertgropius]

Metric thread size for collar screw

Getting back on topic (lol) what size metric tap do I need to chase the threads in my 029 crankcase before I put the bar stud (collar screw) back in? Aren't there two different pitches for 10mm studs?

Thanks.

 

[Fish]

This ugly one needs to rear it's head again!!!!!