I wasn't aware that Morgan had adopted this fixing method but it makes sense.
What is the thread size and what material are the inserts Tim.
The internal thread size is M6, and the fitter at the factory told me they drill the wings M8 to install them. I'm using zinc-plated D-type inserts like these
Tim H. 1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE
