Dartin for Divorce
I just found what I used last time I installed baffles. These screws:
Stainless Steel Thread-Locking Button Head Hex Drive Screws
M5 x 0.8 mm, 8 mm Long
. You will need a 4.2 mm drill, and a M5 x 0.8 tap to install them. They worked great, and are highly unlikely to loosen and fall out.
https://www.mcmaster.com/catalog/93310A809
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