Stainless steel 18-8
A corrosion resistant steel alloy. The most common stainless steel for general hardware use.
Zinc plated grade 5 steel
A low carbon steel for general use. Zinc plated for moderate corrosion resistance. Grade 5 falls between grade 2 and grade 8 in strength, and is commonly found in automotive applications.
Zinc plated grade 8 steel
Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications. A low carbon steel for general use. Zinc plated for moderate corrosion resistance.