I built a 2 decks in 2007 (bought all materials at Menards) and every damn screw rusted through within 3 years. I'm told that now that the wood
has dried out, the new screws won't rust through.
But if I had to do it all over again, I'd find a good grade of stainless steel deck screws.
So far, I'm tending to agree.
I bought some 3/8-16 SS bolts/nuts/washers to secure the hand rail
uprights to my mom's deck step risers (Ima mechanical kinda guy). I
got 'em at True Value Hardware, so was not real sure if they were a
good grade of stainless. The few bolts I didn't use, I left outdoors
in the weather. After 6 yrs of rain/snow/sun, all parts show zero
signs of rust. I'm amazed! ;)
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