S-92092A030 5/16"-18 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the nylon insert locking mechanism, preventing loosening in high-motion applications
• Excellent corrosion resistance provided by brass construction, ideal for harsh or humid industrial environments
• Reliable high-temperature performance with nylon insert rated for continuous use up to 220°F (104°C)
• Precise thread engagement with Class 2B thread fit ensuring consistent, secure fastening without cross-threading
• Easy installation and removal using standard wrench tools thanks to the external hex drive design
• Coarse UNC threading provides quick assembly and disassembly while maintaining strong holding power
• Environmental compliance with RoHS 3 standards, meeting global regulatory requirements for hazardous substances

Professional Applications & Engineering Value

This brass locknut with nylon insert delivers critical vibration-resistant performance for demanding industrial applications where secure fastening is paramount. The UNC coarse thread design enables rapid installation in manufacturing and assembly lines while maintaining reliable locking force. The brass material provides inherent corrosion resistance, making it suitable for marine equipment, plumbing systems, and electrical enclosures exposed to moisture. The nylon insert locking mechanism creates consistent friction against the mating bolt, effectively preventing rotational loosening from machinery vibration, thermal cycling, or dynamic loads. With its 220°F temperature rating and external hex drive, this locknut offers dependable performance in automotive, HVAC, and industrial machinery applications where thermal stability and tool accessibility are essential.

Specification Summary & Compliance

This locknut features 5/16"-18 UNC coarse threads with Class 2B thread fit for precise dimensional accuracy and reliable engagement. The external hex design measures 1/2" across flats with a 11/32" height profile. Manufactured from brass with a nylon insert locking element, the component is RoHS 3 (2015/863/EU) compliant and features right-hand threading direction. The product meets industry standards for vibration-resistant fasteners with temperature capability up to 220°F for the nylon insert.