S-90499A850 1"-12 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: Grade 8 strength classification ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Precision Thread Engagement: Class 2B fine thread fit provides superior vibration resistance and secure fastening in critical assemblies.
• Enhanced Durability: Steel construction offers excellent corrosion resistance and long-term reliability in demanding environments.
• Optimized Torque Transmission: Standard external hex drive design allows for efficient installation with common tools, saving assembly time.
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH environmental standards, ensuring safe use in regulated industries.
• Fine Thread Advantage: 1"-12 UNF thread spacing delivers improved tension control and better sealing capabilities.
• Universal Compatibility: Right-hand thread direction and standard hex profile ensure easy integration with existing industrial equipment.

Professional Applications & Engineering Value

This Grade 8 steel hex nut with 1"-12 UNF fine thread addresses critical engineering challenges in heavy machinery, automotive, and construction applications. The Class 2B thread fit provides exceptional vibration resistance, preventing loosening in dynamic load conditions that commonly plague industrial equipment. The fine thread spacing offers superior clamping force distribution, making it ideal for pressure vessels and structural connections where leak prevention is paramount. Manufactured from high-grade steel with external hex drive configuration, this fastener withstands extreme torque requirements while maintaining structural integrity. The combination of precision threading and robust material properties ensures reliable performance in temperature-fluctuating environments, solving common issues of thermal expansion-induced joint failure.

Specification Summary & Compliance

This hex nut features 1"-12 UNF fine threads with Class 2B thread fit tolerance, ensuring precise engagement with mating components. The fastener meets Grade 8 strength requirements for heavy-duty applications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Physical dimensions include 1-1/2" width and 55/64" height, manufactured to standard hex nut profiles for universal compatibility. The right-hand thread direction and external hex drive configuration adhere to industrial fastener standards for consistent performance across applications.