Metal Sales website of their same size panel, states 1 foot apart.
not that I am aware, when using it was "righty tighty"
Thanks for your inquiry. Yes the Home Depot stocks this item is 1", SKU # 815307, 1" WOODTITE FASTENERS 50 PK.
I'm sure it can be, like anything else just got to make sure you don't overscrew and flatten the ridge!
Thanks for your inquiry, the hex head is 1/4".
they were less than $10 for a hundred at my home depot
Yes on double thinkness
Very, that's what I used them for-- even though they were suppose to be self tapping, I predrilled holes
Thanks for your inquiry. It is not recommended to install MR over Pressure treated lumber unless a barrier is used between the two.