Stainless Steel is an alloy of iron that is mixed with chromium alloy to give it a good resistance to corrosion. This also gives the bolts a shiny exterior. Stainless Steel bolts are more durable, and has higher strength.
Hot-Dipped Galvanized Bolts
Hot-Dipped Galvanized bolts are bolts that have been covered in zinc to ensure a protective coating around the bolts. It gives it a corrosion resistance properties and is considered superior in terms of cost and life-cycle.