S-91694A335 1"-8 ASTM A563 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 from hot-dipped galvanized steel coating, extending service life in harsh industrial environments
- Exceptional clamping force with ASTM Grade DH heavy-duty strength rating for secure, vibration-resistant connections
- Easy installation and removal with extra-wide external hex profile providing enhanced tool engagement and torque application
- Reliable thread compatibility with Class 2B thread fit ensuring smooth assembly with standard 1"-8 UNC male threads
- Regulatory compliance assurance meeting RoHS 3 environmental standards for global industrial applications
- Optimized for high-stress applications through ASTM A563 certification guaranteeing consistent mechanical properties
- Time-saving installation with coarse threading enabling faster assembly compared to fine-thread alternatives
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these heavy-duty hex nuts solve critical challenges in construction, machinery, and structural assemblies. The hot-dipped galvanized steel construction provides a sacrificial zinc layer that actively protects against rust and corrosion in outdoor or high-moisture environments. The extra-wide hex profile distributes clamping force more effectively, preventing joint loosening under dynamic loads and vibration. With 1"-8 UNC coarse threading and Class 2B thread fit, these nuts ensure rapid installation while maintaining precise tolerance control. The ASTM A563 Grade DH certification guarantees consistent mechanical properties for critical connections where failure is not an option, making them ideal for structural steel, heavy equipment, and industrial machinery applications requiring reliable, long-term performance.
Specification Summary & Compliance
This heavy-duty hex nut features precise Class 2B thread fit with 1"-8 UNC coarse thread specifications, manufactured to ASTM A563 standards for dimensional accuracy and mechanical properties. The product maintains RoHS 3 (2015/863/EU) compliance for environmental safety and meets ASTM Grade DH strength requirements. Dimensions include 1-5/8" width and 63/64" height with right-hand thread direction and external hex drive configuration.
