New stainless steel fittings have been introduced by Urban Shade. The Urban Shade shade sail should have the best kind of weatherproofing. Using stainless steel fittings make sense because they protect the parts of the shade sail that keep it together.
Also, stainless steel nuts and bolts have an interesting property. When they are forced into each other, the chromium layer wears away, causing the metal underneath to fuse together. Simply put, the nuts and bolts fit together tighter, giving the structure greater strength and stability. Since the stainless fittings maintain the structural integrity of your shade sail, they also make the shade sail safer.
Overall, stainless fittings are better because they protect the shade sail from the elements, making it more safe, durable, and rust-free.