Used them in workshops from back in the day when I was on the shop floor (that was a long time ago!). Marvellous solution that solved many expensive problems, stripped drain plugs in Mini/Maxi gearbox cases that the cost of change would have written off the cars were resolved with a Helicoils.
When the windscreen was changed on my 4/4 Sport the dealer found a stripped thread much as yours Richard but they either didn’t have or didn’t know or??? of Helicoils and the costs of the replacement casting was eye watering, well over £150 for the cost of a 50p Helicoil insert!!!
BR
Colin
