S-90521A253 7/8"-14 ASME B18.2.2, 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
- Superior load distribution with extra wide profile (1 7/16" width) for enhanced joint stability in high-vibration applications
- Exceptional tensile strength from ASTM Grade 2H steel construction, preventing premature failure under extreme loads
- Precision fine threading (7/8"-14 UNF) ensures tighter engagement and superior resistance to loosening
- Guanteed interchangeability through ASME B18.2.2 compliance and Class 2B thread fit for consistent assembly performance
- Environmental compliance with RoHS 3 and REACH regulations for safe use in regulated industries
- Optimized height profile (55/64") provides maximum thread engagement while maintaining compact dimensions
- Right-hand thread design compatible with standard industrial equipment for straightforward installation
Professional Applications & Engineering Value
This heavy-duty extra wide hex nut delivers critical performance in demanding applications where vibration resistance and joint integrity are paramount. The ASTM Grade 2H steel construction provides exceptional proof load capacity, making it ideal for structural connections, heavy machinery, and industrial equipment subject to dynamic loading. The 7/8"-14 UNF fine thread configuration offers superior resistance to loosening compared to coarse threads, while the extra wide profile distributes clamping force over a larger surface area, reducing stress concentration. Engineered to ASME B18.2.2 specifications, this nut ensures reliable performance in construction, manufacturing, and maintenance operations where fastener failure is not an option.
Specification Summary & Compliance
Manufactured to ASME B18.2.2 dimensional standards with Class 2B thread fit for precise engagement. Complies with ASTM A194 material specifications for high-strength applications. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Thread specifications: 7/8"-14 UNF right-hand fine threads in inch system. Dimensions: 1 7/16" width × 55/64" height.
