S-90521A265 1 1/8"-8 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 through the extra wide hex profile, reducing stress concentration and preventing joint failure
- Maximum torque resistance with the external hex drive design, ensuring secure fastening in high-vibration environments
- High-strength performance certified to ASTM Grade 2H, providing reliable clamping force for heavy-duty applications
- Precision coarse threading (1 1/8"-8 UN) with Class 2B fit for quick assembly and consistent engagement
- Durable steel construction meeting ASTM A194 specifications, ensuring long-term reliability in harsh conditions
- Regulatory compliance with RoHS 3 and REACH standards, guaranteeing safe use in industrial and international markets
- Right-hand thread direction for standard installation procedures, improving workflow efficiency
Professional Applications & Engineering Value
This heavy-duty hex nut delivers critical engineering solutions where standard fasteners fail. The extra wide profile significantly increases bearing surface area, distributing clamp load more effectively to prevent material deformation in structural steel connections, heavy machinery, and construction equipment. Manufactured from high-strength steel and certified to ASTM Grade 2H, it maintains integrity under extreme static and dynamic loads. The 1 1/8"-8 coarse thread with UN specifications and Class 2B thread fit ensures rapid installation and reliable performance in time-sensitive industrial maintenance, mining operations, and transportation infrastructure projects where vibration resistance and durability are paramount.
Specification Summary & Compliance
This hex nut features precision Class 2B thread fit with UN coarse thread specifications (1 1/8"-8). Manufactured according to ASTM A194 standards with ASTM Grade 2H strength certification. Dimensions include 1 13/16" width and 1 7/64" height. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial safety.
