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While both are austenitic stainless steels used for washers, SS 304 offers superior corrosion resistance and durability compared to the more budget-friendly SS 202. The key differences lie in their chemical composition, mechanical properties, and ideal applications

Fasteners are essential mechanical devices that join or secure two or more objects. A comprehensive commentary on fasteners covers their diverse types, classification (permanent vs. non-permanent), and engineering considerations, including common mistakes and best practices

AISI Grades 202, 304 and 316 are the more commonly used material grades. Stainless steel of grade 202 contains nickel of 5% and chromium of 18% and is the cheapest of the three grades. Fasteners of this grade are generally used for low budget uses and/or where the mating components are also not of a higher grade.