S-90047A110 1/4"-28 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through center lock distorted thread technology that maintains clamp load in high-stress environments
• Excellent corrosion protection with 18-8 stainless steel construction suitable for harsh industrial applications
• Precise thread engagement with Class 2B thread fit ensuring reliable performance and consistent locking force
• Optimal torque transmission via external hex drive design for easy installation with standard tools
• Enhanced fastening security with UNF fine thread spacing providing superior holding power in critical assemblies
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial use
• Compact profile design with 7/32" height allowing installation in space-constrained applications

Professional Applications & Engineering Value

This 1/4"-28 UNF locknut delivers exceptional engineering value through its center lock distorted thread design, which actively resists loosening under continuous vibration and dynamic loads. Manufactured from 18-8 stainless steel, it provides reliable corrosion resistance in demanding environments including marine, automotive, and industrial machinery applications. The external hex drive enables efficient installation with standard wrenches while maintaining consistent torque values. The fine thread spacing and Class 2B thread fit ensure precise engagement with mating components, making this distorted thread locknut ideal for critical assemblies where vibration-induced failure is a concern. The compact 7/32" profile allows installation in tight spaces without compromising performance.

Specification Summary & Compliance

This precision locknut features 1/4"-28 UNF fine threads with Class 2B thread fit tolerance for optimal engagement. The right-hand thread direction and external hex drive (7/16" width) provide standard installation compatibility. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial compliance standards. The center lock distorted thread technology maintains consistent locking performance across the specified 7/32" height profile.