S-90521A250 7/8"-9 ASTM A194 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
- Exceptional load distribution due to the extra wide 1 7/16" profile, minimizing surface pressure and preventing material damage.
- Superior strength and reliability with ASTM Grade 2H certification, ensuring high tensile performance for critical, heavy-duty applications.
- Effortless installation and removal provided by the coarse UNC thread and Class 2B fit, reducing assembly time and risk of cross-threading.
- Enhanced durability and corrosion resistance from high-quality steel construction, extending service life in harsh industrial environments.
- Broad compatibility and secure fastening with 7/8"-9 UNC right-hand threads, making it ideal for standard inch-system components.
- Compliance with rigorous industry standards including ASTM A194, ensuring consistent quality and performance in engineering projects.
- Safe for global use with RoHS 3 and REACH compliance, meeting environmental regulations without compromising on material integrity.
Professional Applications & Engineering Value
This extra wide hex nut is engineered to solve common industrial challenges such as joint failure under high vibration and dynamic loads. The ASTM Grade 2H steel construction provides a robust solution for heavy-duty applications in construction, machinery, and infrastructure, where coarse UNC threads ensure quick and secure assembly. The external hex drive allows for high-torque installation with standard tools, reducing downtime. Its Class 2B thread fit offers optimal clearance for reliable performance in inch-system assemblies, preventing loosening and maintaining structural integrity in demanding environments like mining, transportation, and heavy equipment manufacturing.
Specification Summary & Compliance
This nut features precise Class 2B thread fit with 7/8"-9 UNC coarse threads and right-hand direction, manufactured to ASTM A194 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. Dimensions include a width of 1 7/16" and height of 55/64", with full conformance to ASTM Grade 2H strength requirements for reliable performance in industrial settings.
