S-98858A849 1/2"-13 Cap Nuts
Cap 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, extending service life in harsh industrial environments
- High-strength Grade 5 construction ensures reliable performance under heavy loads and vibration
- Coarse UNC threading provides faster installation and reduced cross-threading risk
- Precision Class 2B thread fit guarantees consistent engagement and secure fastening
- External hex drive design enables easy installation with standard tools
- RoHS 3 compliance meets environmental regulations while maintaining mechanical integrity
- Standard cap nut profile offers both functional fastening and finished appearance
Professional Applications & Engineering Value
This Grade 5 black corrosion-resistant steel cap nut delivers exceptional performance in demanding industrial settings where both strength and environmental protection are critical. The 1/2"-13 UNC coarse thread configuration ensures rapid assembly in applications ranging from heavy machinery to structural frameworks, while the corrosion-resistant coating protects against rust and degradation in moist or chemically aggressive environments. The combination of external hex drive and Class 2B thread fit provides maintenance teams with quick, reliable installation using common tools, reducing assembly time and preventing thread damage. These cap nuts are engineered to maintain clamping force in high-vibration applications, making them ideal for automotive, construction, and manufacturing equipment where fastener failure is not an option.
Specification Summary & Compliance
This cap nut features 1/2"-13 UNC coarse threads with Class 2B fit for consistent thread engagement. Manufactured from steel meeting Grade 5 strength requirements with dimensions of 3/4" width and 13/16" height. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel, ensuring regulatory compliance while maintaining mechanical properties. Thread direction is right-hand with standard external hex drive configuration.
