S-90580A697 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
- Enhanced corrosion resistance from black-oxide steel coating, extending service life in harsh industrial environments.
- Superior load distribution due to the extra wide profile, reducing stress concentration and preventing joint failure.
- High-strength performance meeting ASTM A563 Grade C standards, ensuring reliability in heavy-duty applications.
- Easy and quick installation with coarse UNC threads and Class 2B fit, providing smooth engagement and reducing assembly time.
- Secure external hex drive design allows for high torque application with standard tools, minimizing slippage.
- Compliance with environmental regulations including RoHS 3 and REACH, making it safe for various industrial uses.
- Durable construction with precise 2" width and 1 7/32" height, offering consistent performance under vibration and load.
Professional Applications & Engineering Value
This 1 1/4"-7 UNC hex nut is engineered from black-oxide steel to combat corrosion in demanding settings like construction, machinery, and infrastructure projects. Its extra wide profile distributes clamping force evenly, reducing the risk of loosening under vibration—a common issue in heavy equipment. The coarse thread design ensures rapid assembly and disassembly, saving labor time in maintenance and repair operations. Compliant with ASTM A563 Grade C and featuring a Class 2B thread fit, it delivers precise, reliable fastening for industrial fasteners requiring high strength and durability. Ideal for applications where corrosion resistance and long-term performance are critical, this nut minimizes downtime and maintenance costs.
Specification Summary & Compliance
This hex nut adheres to ASTM A563 Grade C specifications, with a 1 1/4"-7 UNC coarse thread and Class 2B thread fit for consistent dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental safety. The external hex drive and right-hand thread direction support standard industrial practices, backed by rigorous manufacturing controls for reliable performance in heavy-duty fastening applications.
