S-93083A114 1/4"-28 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through serrated locking technology that prevents loosening under dynamic loads
• Enhanced corrosion protection with black-oxide steel finish for extended service life in harsh environments
• Precise thread engagement with Class 2B thread fit ensuring reliable, consistent fastening performance
• Increased bearing surface from 19/32" flange diameter distributing load and preventing surface damage
• Easy installation and removal with standard external hex drive compatible with common tools
• Regulatory compliance assurance meeting REACH and RoHS 3 standards for global industrial applications
• Fine thread precision with 1/4"-28 UNF threads providing superior clamping force in critical assemblies

Professional Applications & Engineering Value

This black-oxide steel flange locknut delivers exceptional performance in demanding industrial environments where vibration resistance is critical. The serrated locking mechanism creates permanent resistance to rotational loosening, making it ideal for automotive assemblies, heavy machinery, and electrical enclosures subject to constant motion. The UNF fine thread configuration provides superior tensile strength and clamping force compared to coarse threads, while the integrated 19/32" flange eliminates the need for separate washers, reducing assembly time and part count. The external hex drive ensures compatibility with standard wrenching tools, facilitating quick installation in confined spaces. Engineered for Class 2B thread fit, this flange nut maintains consistent torque values and reliable performance throughout its service life in manufacturing, aerospace, and transportation applications.

Specification Summary & Compliance

This precision flange locknut features 1/4"-28 UNF fine threads with Class 2B thread fit for optimal engagement and consistent torque performance. The nut maintains dimensional accuracy with 7/16" width, 15/64" height, and standardized external hex drive profile. Manufacturing compliance includes full adherence to REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental responsibility and global market acceptance. The black-oxide steel construction combined with right-hand thread direction and serrated locking type delivers reliable performance in industrial fastening applications requiring vibration resistance and secure locking capabilities.