S-90099A038 1"-8 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking mechanism, ensuring secure fastening in high-motion environments
• Excellent corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial conditions
• Enhanced torque transmission thanks to extra wide hex profile, reducing tool slippage during installation
• Reusable locking performance allows for multiple installations without compromising vibration resistance
• Precision coarse threading with UNC Class 2B fit enables quick assembly and reliable engagement
• Environmental compliance with RoHS 3 and REACH regulations for global industrial applications
• Heavy-duty construction with 1 5/16" height provides substantial bearing surface for load distribution

Professional Applications & Engineering Value

This nylon insert locknut delivers exceptional engineering value in applications where vibration-induced loosening compromises safety and performance. The 18-8 stainless steel construction provides inherent corrosion resistance for outdoor equipment, marine applications, and chemical processing environments. The extra wide hex profile enables higher torque application without damaging the fastener, while the coarse UNC threading ensures rapid installation in production settings. The nylon insert creates consistent friction against mating threads, maintaining clamp force in machinery, conveyor systems, and heavy equipment where dynamic loads and constant vibration would cause standard nuts to fail. This combination of vibration-resistant locking and corrosion-resistant materials solves critical fastening challenges in manufacturing, transportation, and infrastructure applications.

Specification Summary & Compliance

This locknut features 1"-8 UNC coarse threading with Class 2B thread fit for reliable engagement and dimensional accuracy. The external hex drive style accommodates standard wrenching tools, while the right-hand thread direction follows conventional installation practices. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance. The nylon insert locking mechanism maintains consistent performance across temperature variations while providing reusable vibration resistance without requiring additional locking devices.