S-90949A133 1"-8 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread locking technology that maintains secure fastening under extreme conditions
• Enhanced corrosion protection with black-phosphate steel coating that withstands harsh industrial environments
• Heavy-duty load distribution thanks to the 2-1/16" flange design that reduces surface pressure and prevents loosening
• Reliable coarse thread engagement with 1"-8 UNC threads that provide quick installation and superior holding power
• Industry-standard compatibility with Class 2B thread fit ensuring perfect mating with standard male threads
• Environmental compliance assurance with RoHS 3 certification for safe use across regulated industries
• Grade G strength certification delivering consistent mechanical performance and durability in demanding applications

Professional Applications & Engineering Value

This Grade G flange lock nut with distorted thread technology solves critical vibration-induced loosening problems in heavy machinery, construction equipment, and automotive assemblies. The black-phosphate steel construction provides exceptional corrosion resistance while maintaining the mechanical properties required for high-stress applications. The 1"-8 UNC coarse thread design ensures rapid installation and reliable performance in environments where vibration and dynamic loads are constant challenges. The integrated 2-1/16" flange distributes clamping force over a wider area, reducing the risk of surface damage and maintaining joint integrity. Engineered for industrial lock nut applications requiring both security and durability, this component delivers consistent performance in manufacturing, transportation, and heavy equipment sectors.

Specification Summary & Compliance

This flange lock nut features 1"-8 UNC coarse threads with Class 2B thread fit for precise mating with standard components. The manufacturing complies with industry standards for Grade G strength classification, ensuring consistent mechanical performance. The product is RoHS 3 (2015/863/EU) compliant and meets environmental safety requirements. The external hex drive design provides secure tool engagement while the right-hand thread direction follows conventional installation practices. The combination of distorted thread locking mechanism and flange design creates a reliable fastening solution for vibration-prone applications.