S-90949A031 3/8"-16 Flange Nuts
Flange Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance through distorted thread locking technology that prevents loosening under extreme conditions
- Enhanced corrosion protection with black-phosphate steel coating that withstands harsh industrial environments
- Increased bearing surface area with 13/16" flange diameter for better load distribution and joint stability
- Reliable coarse threading with UNC thread profile for quick assembly and reduced cross-threading risks
- Heavy-duty performance meeting Grade G strength requirements for demanding applications
- Secure Class 2B thread fit ensuring proper engagement and consistent clamping force
- Compliance with international standards including REACH and RoHS 3 for environmental and safety requirements
Professional Applications & Engineering Value
These Grade G flange lock nuts with distorted thread locking technology provide critical vibration resistance in heavy machinery, automotive assemblies, and structural applications where UNC coarse threads enable faster installation. The black-phosphate steel construction offers superior corrosion resistance compared to standard finishes, while the integrated 13/16" flange eliminates the need for separate washers, reducing assembly time and potential failure points. Engineered for industrial flange nut applications requiring reliable, permanent fastening solutions, these nuts maintain clamp load under continuous vibration and dynamic loading conditions, making them ideal for construction equipment, agricultural machinery, and transportation systems where safety and durability are paramount.
Specification Summary & Compliance
This 3/8"-16 flange lock nut features UNC coarse threading with Class 2B thread fit for precise dimensional accuracy and reliable engagement. The external hex drive design provides standard wrench compatibility across industrial tooling. Manufactured to meet Grade G strength requirements and fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring safe use across regulated industries and applications.
