Fixings for wooden panel - what are they?

[HPsauce]

Originally Posted by Dezzy

Oak or Mahogany 20mm thk is a good soound insulator

But heavy. There's very little substitute for mass (or a vacuum) if you want really good sound insulation.
I remember a senior manager in a company I worked for (for many years) who was infamous for his verbal outbursts. So much so that his office was eventually lead-lined.

Nonetheless he was actually a nice guy (tough but fair) and very well-respected, though sadly no longer with us. I remember randomly bumping into him a few years ago on a tube journey and he remembered me immediately and we had a good chat about old times. He died a couple of years after that - he was "larger than life" in so many ways with health to match!

[HPsauce]

Originally Posted by HPsauce

the holes were nowhere near aligned

And even after it's all dried out AND the right way round, it's not right.
Had to fix it back today (only chance pre-Xmas journeys) and only managed to get one screw in properly - chose the bottom-left one as it seemed to give a half-decent secure fixing, it certainly wouldn't line up with the bracket on the bottom of the transmission tunnel trim panel.
I used a 25mm countersunk posidriv one in the end - 20mm was not gripping enough.

When the weather improves I'll go back, make a paper template of the fixing holes and modify the board appropriately. I suspect it's just swollen a tiny bit overall (even though only one edge was actually wet) so doesn't line up accurately any more.

And when I do finally fit it I'll put some long thin pins/pegs into the screwholes to drop it over, then pull them through one at a time to insert the screws accurately.