S-90631A009 8-32 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking technology, preventing loosening in high-motion applications
• Reliable performance in elevated temperatures with nylon insert rated for secure fastening up to 220°F (104°C)
• Durable corrosion protection with zinc-plated steel construction for extended service life in industrial environments
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Precise thread engagement with Class 2B UNC coarse threads ensuring consistent fit and reusable locking capability
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications
• Optimized dimensions (11/32" width, 15/64" height) providing space-efficient fastening solutions

Professional Applications & Engineering Value

This 8-32 nylon insert locknut delivers critical vibration resistance where conventional fasteners fail. The zinc-plated steel construction provides essential corrosion protection for machinery, automotive assemblies, and electrical enclosures exposed to harsh conditions. The nylon insert locking mechanism creates consistent friction against mating threads, maintaining clamp force through shock and vibration cycles without damaging threads. With UNC coarse threads and Class 2B fit, installation is streamlined while ensuring reliable engagement across multiple reuse cycles. Engineered for applications requiring repeated maintenance access, this locknut eliminates the need for secondary locking devices while meeting stringent RoHS 3 and REACH compliance standards for industrial manufacturing.

Specification Summary & Compliance

This locknut features 8-32 UNC coarse threads with Class 2B thread fit per ASME standards, ensuring proper clearance for reliable engagement. The external hex drive (11/32" width) and 15/64" height provide standardized installation compatibility. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted substances. The nylon insert maintains locking performance within the specified 220°F maximum temperature range while the right-hand thread direction follows industry convention for straightforward assembly.