The benefit of using 2×6 versus 5/4 is that it is slightly less prone to checking. Most of the decks that I have built using 45 degree decking has either been trex, or 2×6. 5/4 will work, but it won't be as solid of a deck.
I have used the fasteners, and drilled holes for the aluminum ballusters and can say that is't all down to your preference. The obvious benefit of not using the fasteners is that you save money. When using the fasteners for a rail going down a set of stairs, you have to make sure you get the correct pitch for them, otherwise assembly of the rail will be a real pain.
I have used the fasteners, and drilled holes for the aluminum ballusters and can say that is't all down to your preference. The obvious benefit of not using the fasteners is that you save money. When using the fasteners for a rail going down a set of stairs, you have to make sure you get the correct pitch for them, otherwise assembly of the rail will be a real pain.