S-90045A450 1/4"-28 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted thread top lock technology that maintains clamp force in high-shock environments
• Excellent corrosion protection with 18-8 stainless steel construction for extended service life in harsh conditions
• Precise thread engagement with Class 2B fit ensuring reliable performance and consistent locking action
• Easy installation and removal using standard tools with the external hex drive design
• Fine thread configuration (UNF 1/4"-28) providing enhanced load distribution and superior holding power
• Right-hand threading compatible with standard assembly procedures and equipment
• Environmental compliance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This distorted thread locknut delivers critical vibration resistance where conventional fasteners fail. The top lock technology creates controlled thread distortion that generates consistent prevailing torque, preventing loosening under dynamic loads. Manufactured from 18-8 stainless steel, it offers exceptional corrosion resistance for applications exposed to moisture, chemicals, or outdoor elements. The UNF fine thread configuration provides superior clamping force distribution, making it ideal for precision equipment, automotive systems, and industrial machinery where vibration is a constant challenge. The external hex drive ensures compatibility with standard wrenching tools, streamlining assembly and maintenance processes in manufacturing and repair operations.

Specification Summary & Compliance

This locknut features 1/4"-28 UNF fine threads with Class 2B thread fit for precise engagement and consistent performance. The distorted thread top lock design provides reliable vibration resistance while maintaining compatibility with standard mating components. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for global industrial applications. Dimensions include 7/16" width across flats and 7/32" height for standardized installation requirements.