18-8 Stainless Hex Cap Screws

An 18-8 hex head cap screw typically refers to a type of stainless steel fastener with specific alloy composition. The numbers "18-8" represent the approximate percentages of key alloying elements in the stainless steel: 18% Chromium (Cr) 8% Nickel (Ni) These alloy percentages are common in two types of stainless steel grades: AISI 304 and AISI 316. These stainless steel alloys are known for their corrosion resistance properties, making them ideal for use in applications where exposure to moisture, chemicals, or corrosive environments is a concern. Key characteristics of 18-8 hex head cap screws (often called 18-8 stainless steel cap screws) include: Corrosion Resistance: They offer excellent resistance to corrosion and rust, making them suitable for use in outdoor, marine, and other corrosive environments. Strength: While not as strong as high-strength steel fasteners like Grade 8.8 or 10.9, 18-8 stainless steel cap screws provide good strength for many applications. Aesthetics: The alloy's attractive appearance and resistance to staining make it a popular choice in industries where aesthetics are important. These screws are commonly used in a wide range of industries and applications, including construction, marine, food processing, and more, where the combination of corrosion resistance and decent strength is required.
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