That's an excellent and very practical question! As someone who's spent countless hours in parks observing and sometimes unfortunately experiencing weathered benches, I can tell you that the answer isn't a simple yes or no. It depends heavily on the park's budget, location, and maintenance standards.
In an ideal world, yes, all fasteners (the bolts, screws, and nuts holding the bench together) should be made of stainless steel, particularly grade 304 or the more marine-resistant 316, to effectively prevent rust. This is the standard for quality, durable outdoor furniture. Stainless steel contains chromium, which forms an invisible protective layer that shields the metal from oxygen and moisture—the main culprits of rust.
However, the reality in many public parks is more varied. You might find:
* Stainless Steel: Common in newer, well-funded municipal parks, high-traffic urban areas, or benches from reputable manufacturers.
* Galvanized Steel: A frequent, cost-effective alternative. These fasteners are zinc-coated to resist corrosion but will eventually rust if the coating is scratched or wears off.
* Plain Carbon Steel: Sometimes found in older benches or very low-budget installations. These will rust quickly, leading to stains, weakness, and difficult disassembly.
How can you tell? Look closely. Stainless steel has a dull, silver-gray finish. Galvanized steel has a slightly speckled, shiny silver or grayish look. Rust, of course, is reddish-brown. Touch a magnet; while not foolproof, many stainless steel fasteners are only slightly magnetic or not magnetic at all.
So, while stainless steel is the best practice for preventing rust and ensuring longevity, not all park benches meet this standard. Regular maintenance and quality materials are key to keeping our public seating safe, clean, and rust-free for years to come.