Yes—by standard, the bolts used on our outdoor benches are stainless steel to help avoid corrosion. For general outdoor conditions, we commonly use 304 stainless steel bolts, while for coastal, high-humidity, industrial, or chlorine-rich environments, we recommend 316 stainless steel for stronger resistance to rust and pitting. Corrosion control is not only about the bolt grade; it also depends on good design and assembly. Our factory pays attention to drainage, avoiding water traps, isolating dissimilar metals, using suitable washers or anti-seize compounds, and protecting exposed connections where needed. We can also provide surface passivation, salt-spray testing, material certificates, and custom hardware specifications for project requirements. If your benches will be installed in severe conditions, we can review the environment and recommend the most suitable stainless steel grade and fastening method so the outdoor benches maintain both safety and appearance over time.