My mag case has a couple of stripped threads, the worst being one of the 10M transmission mounting studs. I also have a few 6M stripped for the fan housing. Reading Dempsey's book I see case savers are preferred over timeserts for mag cases. The 10M hole is approx. 27mm deep and I would think the longer the case saver the better. 10M internal and 16M external seems too big, there are 14M externals but I have found only 14mm lengths, seems short and that they might pull easy. What are your recommendations for these repairs and source of supply. Thanks.