S-99149A127 3/8"-16 ASME B18.2.2 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with black protective coating on 6061 aluminum for extended service life in harsh environments
- Reliable thread engagement with Class 2B thread fit ensuring consistent performance in industrial assemblies
- Standard UNC coarse threading (3/8"-16) provides faster installation and reduced cross-threading risks
- ASME B18.2.2 compliance guarantees dimensional accuracy and interchangeability with standard components
- External hex drive design enables secure tool engagement and high torque application capability
- Environmental regulation compliance with RoHS 3 and REACH standards for global manufacturing applications
- Lightweight aluminum construction reduces overall assembly weight while maintaining structural integrity
Professional Applications & Engineering Value
This 3/8"-16 UNC hex nut delivers exceptional engineering value through its black corrosion-resistant coated 6061 aluminum construction, specifically engineered to combat oxidation and chemical exposure in demanding industrial environments. The coarse thread configuration ensures rapid assembly in high-volume production settings while minimizing thread damage risks. With external hex drive compatibility and standardized ASME B18.2.2 dimensions, this fastener integrates seamlessly into existing assembly processes for machinery, structural frameworks, and transportation equipment. The combination of aluminum's natural strength-to-weight ratio with advanced surface treatment makes it ideal for applications where both corrosion resistance and weight reduction are critical performance factors.
Specification Summary & Compliance
This industrial hex nut maintains precise Class 2B thread fit tolerances with 3/8"-16 UNC coarse thread specifications. Manufacturing complies with ASME B18.2.2 dimensional standards, ensuring consistent 9/16" width and 21/64" height profiles. The product fully meets RoHS 3 (2015/863/EU) compliance requirements and adheres to current REACH (EC 1907/2006) regulations regarding substance restrictions, making it suitable for global industrial applications and environmentally conscious manufacturing operations.
