I use S2 screws a lot including literally hundreds of 10Gx50 for my deck. If you buy the impact driver bits they are more durable. I have a Makita extension impact bit that has lives in my impact driver for the last 3 years. It was the bit I used for the deck. The only time I take it out of the impact driver socket is to put in a different bit to undo non sq dr screws. It is still going stong. In saying that, anyting bosch/makita/dewalt should be fine for screws up to about 65mm length.
My bit will twist the screw head off the shank before it will round off.
If you are using cheap number8 brand bits, or bits of similar quality these will not be durable.
As an aside, a bit of candle wax in the screw threads assists hugely. You can wax the thread by dragging the screw like a file across the side of the candle.
For bulk operations I have an old camping pot full of wax. I heat it gently until the wax is liquid and dip the bottom half of a few hundred screws in it and lay them out on newspaper.
The wax lubricates the thread as the screw goes into the timber and for outdoor structures depending on the grain of the timber, the wax will penetrate immediately around the screw head. This helps to keep water out of the screw head holes over time and makes it easier to undo the screws later.
Bookmarks