Screws and Staples: Metals that are safe?
Stainless steel, aluminium, brass, copper, zink, …
What metals are considered safe screws and staples?
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KannGregory commented
The safest are nickel-plated metals. Nickel plating is a type of electroplating in which a thin layer of nickel is applied to the surface of a part. This method is used to apply a nickel layer as a decorative coating. Nickel plating also provides corrosion resistance and wear resistance. Before starting the plating process, ensure the part's surface is free of dirt, corrosion, and defects. Buy them from a specialist store if you want to use decking screws https://www.scrooz.com.au/screws/decking-screws/ . Many manufacturers now make their screws out of safe metal.
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LexYmae commented
Hi! All steel is good in itself, but in your case it is worth choosing stainless steel