S-95479A909 1 1/2"-12 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black oxide steel coating for extended service life in demanding environments
• High-strength Grade 5 construction provides reliable clamping force and vibration resistance for critical applications
• Precision UNF fine threads with Class 2B fit ensure smooth engagement and consistent torque performance
• Standard external hex drive offers excellent tool accessibility and familiar installation for maintenance crews
• ASME B18.2.2 compliance guarantees dimensional accuracy and interchangeability with standard components
• Environmental compliance with RoHS 3 and REACH regulations for safe use in regulated industries
• Heavy-duty 2 1/4" width provides substantial bearing surface for secure fastening in structural applications

Professional Applications & Engineering Value

This Grade 5 hex nut with black oxide steel construction addresses critical engineering challenges in heavy machinery, construction equipment, and industrial assembly applications. The 1 1/2"-12 UNF fine thread configuration delivers superior vibration resistance compared to coarse threads, maintaining clamp load integrity in dynamic loading conditions. The Class 2B thread fit ensures consistent engagement with mating components while accommodating minor misalignments during assembly. The external hex drive design provides maximum torque application capability, making it ideal for high-tension applications where reliability is paramount. The corrosion-resistant black oxide finish protects against environmental degradation, extending service intervals and reducing maintenance costs in outdoor or harsh operating environments.

Specification Summary & Compliance

This inch system hex nut features precise Class 2B thread fit tolerances with UNF fine thread spacing (12 TPI) on a 1 1/2" diameter. Manufactured to ASME B18.2.2 specifications with dimensions of 2 1/4" width and 1 5/16" height. The fastener meets Grade 5 strength classification requirements and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.