Stainless steel nails come in a range of head types, including:
Grade 304 stainless steel is commonly used for general purpose applications where medium corrosion resistance is required, however grade 316 stainless should be used in coastal applications. Also ensure you do not cross contaminate your stainless steel fasteners with Iron deposits by using the same tools with Carbon Steel.
As well as using stainless steel nails, decking can also be fixed with a variety of stainless steel decking screw options. Stainless Steel Deck Screws are self-drilling and suitable for timbers and hardwoods, see full range of stainless steel deck screws.