S-90521A052 1 1/2"-12 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 2 3/8" profile for enhanced joint stability in heavy machinery
- High-strength performance meeting ASTM Grade 2H requirements for demanding industrial applications
- Precision fine threading (12 UNF) with Class 2B fit ensures secure, vibration-resistant connections
- Exceptional durability from carbon steel construction under ASTM A194 manufacturing standards
- Regulatory compliance with RoHS 3 and REACH for safe use across global industrial markets
- Optimized wrench engagement through external hex drive design for efficient installation and maintenance
- Right-hand thread configuration compatible with standard inch-system components and tools
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these extra wide hex nuts deliver critical performance in construction equipment, mining machinery, and structural assemblies where vibration resistance and load distribution are paramount. The carbon steel construction combined with ASTM Grade 2H certification ensures reliable performance under extreme tension and shear stresses. The fine UNF threading (1 1/2"-12) provides superior clamping force distribution compared to coarse threads, while the Class 2B thread fit guarantees precise mating with corresponding fasteners. This combination addresses common failure points in heavy machinery by preventing loosening under dynamic loads and maintaining joint integrity in high-vibration environments.
Specification Summary & Compliance
Manufactured to ASTM A194 specifications with Class 2B thread fit tolerance for precision assembly. The 1 1/2"-12 UNF fine thread configuration follows standardized inch system measurements. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring material safety and regulatory acceptance for industrial applications worldwide. ASTM Grade 2H certification validates the nut's mechanical properties and performance characteristics for high-strength applications.
