S-90652A050 1/2"-13 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking mechanism, ensuring secure fastening in high-motion environments
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh industrial conditions
• Reliable high-temperature performance with nylon insert rated up to 250°F, maintaining locking integrity in thermal cycling applications
• Optimized installation efficiency featuring extra-wide thin profile and external hex drive for easier wrench access and faster assembly
• Precise thread engagement with Class 2B thread fit and UNC coarse spacing for consistent, reliable performance across multiple installations
• Robust dimensional stability with 7/8" width and 17/32" height providing optimal bearing surface for distributed load management
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This 1/2"-13 nylon insert lock nut delivers critical vibration-resistant performance for demanding industrial applications where loosening under dynamic loads poses significant safety and maintenance concerns. The zinc-plated steel construction provides essential corrosion resistance while the nylon insert locking mechanism creates consistent friction against mating threads, eliminating the need for secondary locking devices. The extra-wide thin profile offers improved wrench clearance in confined spaces while maintaining substantial bearing surface. Engineered with UNC coarse threads and Class 2B thread fit, this external hex locknut ensures reliable performance in automotive, machinery, and structural applications where temperature fluctuations up to 250°F are encountered. The combination of material properties and precision manufacturing addresses common failure points in vibration-prone assemblies.

Specification Summary & Compliance

This heavy-duty locknut features precision Class 2B thread fit with UNC coarse thread spacing (1/2"-13) and right-hand thread direction. Manufactured to industry standards with dimensional specifications of 7/8" width and 17/32" height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety for global industrial applications.