What type of fasteners must be used in salt water coolers?

In applications such as salt water coolers, non-ferrous fasteners are critical due to their resistance to corrosion caused by exposure to salt water. Non-ferrous materials, such as aluminum and brass, do not contain iron and are generally less prone to corrosion compared to ferrous materials, which can rust when exposed to moisture and salts.

Using non-ferrous fasteners in salt water applications helps maintain the integrity and efficiency of the cooling systems. They are less likely to break down over time and ensure a longer lifespan of the equipment. Moreover, non-ferrous fasteners also reduce the risk of electrolytic corrosion that can occur when dissimilar metals are in contact in a salty environment.

While stainless steel is also resistant to corrosion, it is specifically categorized as a type of ferrous material due to the presence of iron, although its alloy composition can provide significant resistance to rust. In contrast, non-ferrous fasteners provide ultimate assurance against corrosion in salt water environments, making them the ideal choice for such applications.