Do you really need countersunk? can you bore a large clearance and just bolt through one wall instead?
Could you use a larger diameter (like .5") insert the length of the tubing, and countersink that? That'd give a stronger connection anyway.
Quote:
Originally Posted by Jeffy
If it gives you a reference:
I have used #6 in .0625 with lots of issues.
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The had on a #6 is way thicker than .0625, I'd expect issues as well (unless you're not countersinking flush).
It looks like you have to go all the way down to a #2-56 to get close, and that's a .064" tall head still.