Comments by "Mikko Rantalainen" (@MikkoRantalainen) on "Best Damaged Thread Repair? Let’s Settle This! Heli Coil, TIME-SERT, E-Z LOK, JB Weld, HHIP, Loctite" video.

  1. Considering that all the metal insert were stronger than aluminium threads, it seems that if you have aluminium structure and want max strength, you should use inserts for all the threads from the start.
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  2. 1:45 One source for stripped threads is removing steel bolts from aluminium threads. If the connection is old enough, the metals have binded so strong that when you try to turn the bolt, the aluminium thread strips away from the aluminium. This results in the original thread still being around the steel bolt when you remove it. This happened for me while removing a glow plug from a TDI engine. It was fixed with a helicoil in local machining shop.
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