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2 replies
705 views
2 replies
Anchor screw: C4 or A2 for galvanized fittings near pool?
Planning to build a deck around a pool and fastening several joists with brackets and anchor screws. Closest to the pool, I was thinking of using A2 screws (haven't found A4 anchor screws at any nearby hardware store). But then I started reading that it’s unwise to mix stainless steel and galvanized/hot-dip galvanized.
Is it better for me to use C4-classified anchor screws for the brackets nearest the pool? They don't withstand moisture as well as A2, but then I wouldn't be mixing stainless and galvanized. Or should I go with the A2 screws?
Is it better for me to use C4-classified anchor screws for the brackets nearest the pool? They don't withstand moisture as well as A2, but then I wouldn't be mixing stainless and galvanized. Or should I go with the A2 screws?
I would have used C4. They should last a long time, probably until it's time to replace the decking, and you avoid any problems with mixing in a wet environment.
Additionally, my experience is that stainless screws are worse to work with. They often seem to have poorer stamping/rounder edges in the actual fitting, so the bits slip and tear the edges.
Additionally, my experience is that stainless screws are worse to work with. They often seem to have poorer stamping/rounder edges in the actual fitting, so the bits slip and tear the edges.
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