Hex Nuts
The most commonly used hex nuts, these are suitable for fastening most machinery and equipment.
Corrosion-Resistant Stainless Steel
Seize-Resistant High-Strength 410 Stainless Steel—Resists sticking during installation and is comparable in strength to Grade 5 steel. These nuts are not as corrosion resistant as 18-8 stainless steel, so they're best for environments that experience occasional moisture.