S-90580A815 7/8"-9 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 protection with hot-dipped galvanized steel construction for extended service life in harsh environments
- Enhanced durability through ASTM Grade C certification, ensuring reliable performance in heavy-duty applications
- Easy installation and removal with extra wide external hex profile providing superior tool grip and torque transmission
- Secure fastening with Class 2B thread fit maintaining consistent clamping force and vibration resistance
- Broad compatibility with 7/8"-9 UNC coarse threads matching standard industrial components and equipment
- Environmental compliance meeting RoHS 3 standards for safe use in regulated industries
- Optimized strength-to-weight ratio through precise 1-7/16" width and 55/64" height dimensions
Professional Applications & Engineering Value
This heavy-duty hex nut delivers exceptional engineering value through its hot-dipped galvanized steel construction and ASTM A563 Grade C certification. The extra wide hex profile enables higher torque application without stripping, while the 7/8"-9 UNC coarse thread configuration ensures rapid assembly in structural steel, heavy machinery, and construction applications. The Class 2B thread fit provides optimal clearance for easy installation while maintaining vibration resistance in dynamic load conditions. The zinc coating from the hot-dip galvanizing process creates a sacrificial barrier that significantly extends service life in corrosive environments, making it ideal for outdoor infrastructure, marine applications, and industrial equipment exposed to moisture and chemicals.
Specification Summary & Compliance
Manufactured to ASTM A563 Grade C specifications with Class 2B thread fit tolerance and UNC coarse thread standards. Dimensions include 1-7/16" width and 55/64" height with external hex drive configuration. Compliant with RoHS 3 (2015/863/EU) environmental regulations and manufactured using right-hand thread direction for standard industrial applications.