S-90499A865 1 1/2"-12 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 steel construction, ensuring reliable performance in high-stress industrial environments
• Superior vibration resistance through UNF fine threading (1 1/2"-12), maintaining secure fastening under dynamic loading conditions
• Precise thread engagement with Class 2B thread fit, providing consistent torque performance and reduced risk of cross-threading
• Easy installation and removal with external hex drive design, compatible with standard wrenching tools for efficient maintenance
• Enhanced durability through robust 2 1/4" width and 1 9/32" height profile, resisting deformation under extreme torque applications
• Regulatory compliance assurance with RoHS 3 and REACH compliance, meeting international environmental and safety standards
• Right-hand thread orientation for standardized assembly procedures across industrial equipment and machinery

Professional Applications & Engineering Value

This Grade 8 steel hex nut delivers critical engineering solutions for heavy-duty applications where failure is not an option. The UNF fine thread configuration (1 1/2"-12) provides significantly increased thread engagement compared to coarse threads, making it ideal for vibration-prone environments such as industrial machinery, construction equipment, and automotive assemblies. The Class 2B thread fit ensures precise tolerance matching with mating components, reducing the risk of thread stripping and galling during high-torque installations. Manufactured from high-strength steel material, this external hex drive nut maintains structural integrity under extreme tensile and shear loads, while its standard hex profile allows for quick servicing with common industrial tools. The combination of fine threading and heavy-duty construction addresses common challenges of joint relaxation and fatigue failure in critical bolted connections.

Specification Summary & Compliance

This heavy-duty hex nut features Class 2B thread fit per UNF standards with precise 1 1/2"-12 fine threading and right-hand thread direction. Manufactured to Grade 8 strength specifications with standard external hex drive configuration. Dimensions include 2 1/4" width across flats and 1 9/32" height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety standards are met for industrial applications.