S-90580A827 1 1/4"-7 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 construction, ensuring long-term reliability in harsh industrial environments
- Enhanced grip and torque application with extra wide hex profile (2" width) for secure fastening in high-vibration applications
- Reliable thread engagement with Class 2B thread fit providing consistent performance and reduced cross-threading risks
- Heavy-duty load capacity meeting ASTM A563 Grade C specifications for demanding mechanical applications
- Quick installation efficiency with coarse UNC threads (1 1/4"-7) enabling faster assembly in time-sensitive operations
- Environmental compliance assurance with RoHS 3 (2015/863/EU) certification for sustainable procurement
- Optimized wrench clearance through external hex drive design for standard tool compatibility
Professional Applications & Engineering Value
This heavy-duty hex nut delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The hot-dipped galvanized steel construction forms a protective zinc barrier that withstands moisture, chemicals, and outdoor exposure, making it ideal for construction equipment, marine hardware, and infrastructure projects. The extra wide profile distributes clamping force more effectively, preventing joint loosening under dynamic loads while the coarse UNC threads maintain engagement in vibrating machinery. Engineered to ASTM A563 Grade C standards, this industrial fastener provides dependable performance in structural steel connections, heavy machinery assembly, and transportation equipment where failure is not an option.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2B thread fit for consistent mating with corresponding 1 1/4"-7 UNC threaded components. Complies with ASTM A563 manufacturing specifications for hex nuts and meets RoHS 3 (2015/863/EU) environmental directives. The inch system measurement ensures compatibility with North American industrial standards while the right-hand thread direction and external hex drive provide industry-standard installation procedures.
