S-90648A225 1/2"-13 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking that maintains secure fastening under dynamic loads
• Enhanced torque application with extra wide hex profile for better tool engagement and reduced slipping
• Excellent corrosion protection with zinc-plated steel construction for extended service life in harsh environments
• Reliable high-temperature performance with nylon insert rated for continuous use up to 250°F
• Precise thread engagement with Class 2B thread fit ensuring consistent installation and removal
• Optimized for industrial applications featuring UNC coarse threading for faster assembly and reduced cross-threading risk
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This heavy-duty nylon insert lock nut delivers exceptional engineering value in applications where vibration-induced loosening poses significant reliability concerns. The zinc-plated steel construction provides crucial corrosion resistance for outdoor equipment, automotive assemblies, and industrial machinery exposed to moisture and chemicals. The extra wide hex profile enables higher torque application without damaging the fastener, while the nylon insert locking mechanism creates consistent friction that maintains clamp load without damaging mating threads. With UNC coarse threading and Class 2B thread fit, these lock nuts install quickly on 1/2"-13 threaded components while providing reliable, reusable locking performance that reduces maintenance frequency and downtime in production environments.

Specification Summary & Compliance

This lock nut features 1/2"-13 UNC coarse threading with Class 2B thread fit for precision engagement, right-hand thread direction, and dimensions of 7/8" width and 45/64" height. Manufactured to industry standards for external hex drive locknuts with nylon insert locking technology rated to 250°F maximum temperature. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and unrestricted use in industrial applications worldwide.