Eagle Claw Fasteners

304 and 316 are both stainless steels with excellent corrosion resistance, but 316 contains added molybdenum, which significantly improves resistance against chloride‑induced corrosion (common in coastal and marine environments). 304 screws are a cost‑effective choice for general outdoor use, while 316 screws are ideal for applications near saltwater, pool areas, or harsher environments.

Use 316 grade when your project will be exposed to saltwater, coastal air, de‑icing salts, or pool chemicals. basically, all environments where corrosion is more aggressive. The added molybdenum in 316 helps resist pitting and rust far better than 304 in these conditions.

For inland, non‑marine projects, 304 grade screws generally offer excellent performance at a lower cost. However, 304 grade work very well in or around fresh water such as lakes or streams.

Yes. Stainless steel screws, are completely corrosion‑resistant. They don't rely on coatings that can wear off over time. In outdoor or moisture‑prone environments, stainless steel outperforms coated or plated alternatives, maintaining strength and appearance without rust or degradation.