Finished Stainless Steel Hex Nuts
Finished Stainless Steel Hex Nuts
Fractional & Metric Sizes with Multiple Stainless Steel Grades
Finished stainless steel hex nuts are a critical fastening solution across automotive, construction, marine, and industrial applications. Designed with a six-sided profile for easy wrench engagement, these nuts provide secure, long-lasting connections when paired with compatible bolts or threaded rods. Their corrosion resistance, strength, and versatility make them ideal for both indoor and outdoor environments.
Available in both fractional and metric sizing, finished stainless steel hex nuts support U.S. and international fastening standards, allowing engineers, contractors, and maintenance teams to specify the right nut for virtually any application.
Fractional and Metric Size Options
Compatible with U.S. and International Standards
Fractional stainless steel hex nuts are commonly used in North America and are sized by bolt diameter in inches. Typical fractional sizes include 1/4", 5/16", 3/8", 1/2", and larger. These sizes are widely used in machinery, structural assemblies, and general fabrication.
Metric stainless steel hex nuts are specified by bolt diameter in millimeters and follow standardized thread pitches. Common metric sizes include M6, M8, M10, M12, M16, and M20. Metric sizing is prevalent in automotive manufacturing, global construction projects, and imported equipment.
Stainless Steel Grades Explained
Selecting the Right Material for the Environment
Different stainless steel grades offer varying levels of corrosion resistance, strength, and performance:
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304 Stainless Steel (A2): The most common grade, offering excellent corrosion resistance for general-purpose applications, including food processing and chemical handling.
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316 Stainless Steel (A4): Enhanced with molybdenum for superior resistance to chlorides and saltwater, making it ideal for marine, coastal, and chemical environments.
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410 Stainless Steel: A martensitic grade providing higher strength and hardness, best suited for dry or mildly corrosive conditions where strength is the priority.
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18-8 Stainless Steel: A widely used subset of 304 stainless steel, offering a balance of corrosion resistance and mechanical strength for industrial and commercial use.
Standards and Performance
Finished stainless steel hex nuts are commonly manufactured to ASTM A194, ISO 4032, and DIN 934 specifications. These standards ensure consistent dimensions, thread accuracy, and mechanical properties such as tensile strength and proof load.
By choosing the correct size and stainless steel grade, finished stainless steel hex nuts deliver reliable fastening performance, long service life, and corrosion resistance in even the most demanding applications.